阅读说明：本技术 X射线摄影装置 (X-ray imaging device ) 是由 M·达吉斯 吉田贵则 丹野圭一 于 2018-04-09 设计创作，主要内容包括：该X射线摄影装置(100)的图像处理部(13)构成为能够在整个期间图像合成模式与部分期间图像合成模式之间进行切换,其中,在该整个期间图像合成模式下,以图像生成期间的整个期间的图像为对象,将图像进行叠加来生成合成图像(M),在该部分期间图像合成模式下,以图像生成期间的一部分期间的图像为对象,将图像进行叠加来生成合成图像。(The image processing part (13) of the X-ray imaging device (100) is configured to switch between image synthesis model during entire period image synthesis model and part, wherein, under the entire period image synthesis model, the image of entire period during being generated using image is object, image is overlapped to generate composograph (M), during the part under image synthesis model, image is overlapped as object to generate composograph by the image during a part during being generated using image.)

1. a kind of X-ray imaging device, has:

Image production part generates the image of the detection signal based on the radioactive ray penetrated from the subject for being imported into equipment；

The multiple described images generated by described image generating unit are overlapped by image processing part；And

Display unit can show described image,

Wherein, described image processing unit is configured to image synthesis model and image synthesis model during part during entire Between switch over, wherein the figure under the entire period image synthesis model, during entire during being generated with image As being object, described image is overlapped to generate composograph, during the part under image synthesis model, with the figure The described image during a part during picture generation is object, described image is overlapped to generate composograph.

2. X-ray imaging device according to claim 1, which is characterized in that

Described image processing unit is constituted are as follows: during the part under image synthesis model, to provide that the described image of frame number is Described image is overlapped by object.

3. X-ray imaging device according to claim 1, which is characterized in that

It is also equipped with switching input unit, which is switched to the entire period image synthesis model or described for user Image synthesis model during part.

4. X-ray imaging device according to claim 3, which is characterized in that

Be also equipped with control unit, which carries out following control: photograph start when or the photography start before obtain with by The switching of image synthesis model during the entire period image synthesis model of the switching input unit progress or the part Related information.

5. X-ray imaging device according to claim 1, which is characterized in that

The equipment includes being retained in described to be detected intracorporal first equipment and be dividually imported into first equipment It is detected intracorporal second equipment to described,

Described image processing unit is constituted are as follows: during the part under image synthesis model, to inhibit due to second equipment The mode that relative movement relative to first equipment causes the first equipment described in the composograph fuzzy will provide The described image of frame number is overlapped.

6. X-ray imaging device according to claim 5, which is characterized in that

The regulation frame number is the frame number for capableing of fully the second equipment described in visual identity in the composograph.

7. X-ray imaging device according to claim 1, which is characterized in that

Under the entire period image synthesis model in order to generate composograph at the end of photography and described in using The frame number of image is than the described image that uses under the image synthesis model during the part in order to generate the composograph Frame number it is more.

8. X-ray imaging device according to claim 1, which is characterized in that

Described image processing unit is constituted are as follows: under the entire period image synthesis model, described at the end of to photography Composograph carries out the correction for emphasizing the equipment, to generate correction composograph,

The display unit is constituted are as follows: shows that the correction synthesizes at the end of photography under the entire period image synthesis model Image.

9. X-ray imaging device according to claim 1, which is characterized in that

Described image processing unit is constituted are as follows: the institute under the entire period image synthesis model, during described image is generated The described image for stating entire period is all overlapped.

10. X-ray imaging device according to claim 2, which is characterized in that

Described image processing unit is constituted are as follows: during the part under image synthesis model, by the newest regulation frame number Described image is overlapped.

11. X-ray imaging device according to claim 1, which is characterized in that

The composograph is to be highlighted to emphasize image as the bracket of the bracket of the equipment.

Technical field

The present invention relates to a kind of X-ray imaging devices.

Background technique

In the past, it is known that a kind of to generate being overlapped based on the image of the detection signal of radioactive ray the X of composograph and penetrate Line camera.This X-ray imaging device is for example disclosed in Japanese Unexamined Patent Application Publication 2005-510288 bulletin.

Medical sight used in a kind of interventional therapy in the blood vessels is disclosed in Japanese Unexamined Patent Application Publication 2005-510288 bulletin Examine system, the intravascular Interventional Treatment use with for position alignment label sacculus and be installed on sacculus and with mark phase Than being difficult to absorb the bracket (equipment) of X-ray (radioactive ray).The medical sight documented by Japanese Unexamined Patent Application Publication 2005-510288 bulletin It examines in system, the new image for using X-ray to take is subjected to position alignment relative to the label referring to image.Moreover, structure Time integral (superposition) obtained sequence image is carried out to the image for carrying out position alignment as showing in display unit.

In addition, in intravascular Jie for having used Medical viewing system documented by Japanese Unexamined Patent Application Publication 2005-510288 bulletin Enter in treatment, standoff sacculus will be installed and configure narrow positions in the blood vessels and make balloon inflation, thus by support configuration In narrow positions.Here, in the blood vessels in interventional therapy, such as there are following situations: such as confirm the indwelling state feelings of bracket Condition is such, in the state that sacculus (label) has almost no change relative to the relative position of bracket, confirms sequence image on one side It performs the operation on one side.In addition, in the blood vessels in interventional therapy, such as there are following situations: such as by new bracket relative to By indwelling set bracket carry out position alignment situations such as it is such, changed in sacculus (label) relative to the relative position of bracket In the state of, it performs the operation while confirming sequence image.

Summary of the invention

Problems to be solved by the invention

However, being had the following problems in the Medical viewing system documented by Japanese Unexamined Patent Application Publication 2005-510288 bulletin: In When sacculus (label) is performed the operation while confirming sequence image in the state of changing relative to the relative position of bracket, In Bracket is fuzzy in sequence image, the visual deterioration of bracket (equipment) in sequence image (composograph).Specifically, for example By because the time of shooting differs widely cause bracket position the big image of variation it is superposed on one another in the case where, carrying out In image after position alignment, the position of bracket significantly deviated.Therefore, sequence chart is generated image to be overlapped It as in the case where, is overlapped with the state that bracket significantly deviates in sequence image, therefore bracket is fuzzy, bracket (equipment) Visual deterioration.

The present invention is completed to solve the problems, such as described above, and it is an object of the present invention to provide a kind of energy The composograph of the visual deterioration of equipment is enough inhibited to be shown in the X-ray imaging device in display unit.

The solution to the problem

The X-ray imaging device of one aspect of the present invention has: image production part, generates based on setting from being imported into The image of the detection signal for the radioactive ray that standby subject penetrates；Image processing part, it is multiple by being generated by image production part Image is overlapped；And display unit, it can show image, wherein image processing part is configured to the figure during entire As being switched between image synthesis model during synthesis model and part, wherein during entire under image synthesis model, with The image of entire period during image generation is object, image is overlapped to generate composograph, is schemed during part As under synthesis model, image is overlapped as object to generate synthesis by the image during a part during being generated using image Image.

In X-ray imaging device in one aspect of the invention, as described above, image processing part is configured to switch For image synthesis model during part, during the part under image synthesis model, during a part during being generated with image Image be object, image is overlapped to generate composograph.As a result, during part under image synthesis model, carry out The image of superposition is defined as the image during a part, therefore can reduce the position of the equipment between the image being overlapped Variation.As a result, it is possible to inhibit equipment have occurred offset in the state of be overlapped, therefore be able to suppress by image into It is fuzzy that row is superimposed equipment in obtained composograph.Thus, it is possible to which the composograph of the visual deterioration of equipment is inhibited to show In display unit.

In addition, in X-ray imaging device in one aspect, as described above, image processing part is configured to entire It is switched between image synthesis model during period image synthesis model and part, wherein synthesized in the entire period image Under mode, image is overlapped as object to generate composograph, at this by the image of the entire period during being generated using image During part under image synthesis model, image is overlapped by the image during a part during being generated using image as object To generate composograph.In the state that the position of equipment has almost no change during entire during image generates as a result, In the case where being performed the operation, by being switched to entire period image synthesis model, the equipment that position can have almost no change It is reliably superimposed, therefore the composograph of equipment clearly high image quality can be made to be shown in display unit.On the other hand, in image It, can be as above by image synthesis model during being switched to part in the case that the variation of the position of equipment is big during generation The composograph of such visual deterioration for inhibiting equipment is shown in display unit.As a result, by by image processing part It is configured to switch between image synthesis model during entire period image synthesis model and part, is able to suppress and sets The composograph of standby visual deterioration is shown in display unit, and the composograph suitable for operation can be made to be shown in display In portion.

In the X-ray imaging device in terms of said one, it is preferred that image processing part is configured to scheme during part As using the image for providing frame number as object, image being overlapped under synthesis model.If constituted like this, in the part phase Between under image synthesis model, the image being overlapped be defined as a part during regulation frame number image, therefore can Reliably reduce the variation of the position of the equipment between the image being overlapped.Thereby, it is possible to further suppress to have occurred with equipment The state of offset is overlapped, therefore can further suppress and image is being overlapped to equipment mould in obtained composograph Paste.

In the X-ray imaging device in terms of said one, it is preferred that be also equipped with switching input unit, switching input Portion is used for user and is switched to image synthesis model during entire period image synthesis model or part.If constituted like this, The pattern switching of image processing part can be the mode suitable for operation by user, therefore can be reliably suppressed the visuality of equipment The composograph of deterioration is shown in display unit, and the composograph suitable for operation can be made to be shown in display unit.

In which case it is preferable that be also equipped with control unit, which carries out following control: photograph start when or Photography obtains before starting and synthesizes mould with image during the entire period image synthesis model or part carried out by switching input unit The related information of the switching of formula.If constituted like this, can make control unit photograph start when or photography start before obtain Information related with mode is taken, therefore can make to generate synthesis under the mode of image processing part after handover since photography Image.For example it can shift to an earlier date generating device in the state of being switched to entire period image synthesis model as a result, and clearly synthesize Image, thus user can advance operation X-ray imaging device the irradiation of radioactive ray is stopped.As a result, it is possible to effectively The amount of radiation of subject is inhibited to increase.

In the X-ray imaging device in terms of said one, it is preferred that equipment includes being retained in be detected intracorporal the One equipment and be dividually directed in subject with the first equipment and have for carrying out the mark of position alignment second Equipment, image processing part are constituted are as follows: during part under image synthesis model, to inhibit to set due to the second equipment relative to first Standby relative movement causes the mode that the first equipment is fuzzy to be in the composite image overlapped the image of regulation frame number.If picture It constitutes in this way, then during part under image synthesis model, the composograph for being able to suppress the visual deterioration of the first equipment is aobvious Show in display unit.

In which case it is preferable that, it is specified that frame number is in the composite image being capable of fully the second equipment of visual identity Frame number.If constituted like this, display unit can be made, which to show, fully the second equipment of visual identity and to be inhibited The composograph of the visual deterioration of first equipment.

In the X-ray imaging device in terms of said one, it is preferred that during entire under image synthesis model in order to Generate the composograph at the end of photography and the frame number ratio of image that uses during part under image synthesis model in order to generate Composograph and the frame number of image that uses is more.If constituted like this, image processing part can close image during entire Equipment clearly composograph is reliably produce at the end of photography at mode.

In the X-ray imaging device in terms of said one, it is preferred that image processing part is configured to by the entire phase Between composograph at the end of photography under image synthesis model carry out the correction for emphasizing equipment, to generate correction composite diagram Picture, display unit are configured to show correction composograph at the end of the photography under image synthesis model during entire.If as this Sample is constituted, then user can utilize the correction for being shown in display unit after the photography under image synthesis model during entire to close At image, more accurately to identify the state of equipment.

In the X-ray imaging device in terms of said one, it is preferred that image processing part is configured to the figure during entire As the image of the entire period during generating image under synthesis model is all overlapped.If constituted like this, whole Under a period image synthesis model, it can further shift to an earlier date generating device clearly composograph.

During above-mentioned part under image synthesis model, image is overlapped as object using the image of regulation frame number In structure, it is preferred that image processing part is configured to the figure of newest regulation frame number during part under image synthesis model As being overlapped.If constituted like this, during part under image synthesis model, can make to inhibit equipment fuzzy most New composograph is shown in display unit, therefore user can reliably while confirming newest composograph and carry out hand Art.

In the X-ray imaging device in terms of said one, it is preferred that composograph has been highlighted as equipment The bracket of bracket emphasize image.If constituted like this, the composograph for being able to suppress the visual deterioration of bracket is shown In display unit.

The effect of invention

According to the present invention, as described above, the composograph for being able to suppress the visual deterioration of equipment is shown in display unit.

Detailed description of the invention

Fig. 1 is the integrally-built block diagram for showing the X-ray imaging device of an embodiment of the invention.

Fig. 2 is the figure for illustrating the therapeutic appliance including bracket.

Fig. 3 is the figure for showing an example of the image in the case where the relative position of bracket and label does not change.

Fig. 4 be for illustrate the X-ray imaging device of an embodiment of the invention based on not having in relative position The figure of the position alignment in the region in the case where variation.

Fig. 5 is for illustrating not changing in relative position for the X-ray imaging device of an embodiment of the invention In the case where position correction image superposition figure.

Fig. 6 is the feelings not changed in relative position for showing the X-ray imaging device of an embodiment of the invention The figure of the composograph under fully synthetic mode under condition.

Fig. 7 is the feelings not changed in relative position for showing the X-ray imaging device of an embodiment of the invention The figure of correction composograph under fully synthetic mode under condition.

Fig. 8 is the feelings not changed in relative position for showing the X-ray imaging device of an embodiment of the invention The figure of the composograph under partially synthetic mode under condition.

Fig. 9 is the figure for showing an example of the image in the case where the relative position of bracket and label changes.

Figure 10 be for illustrate the X-ray imaging device of an embodiment of the invention based on changing in relative position In the case where region position alignment figure.

Figure 11 is the feelings in relative position variation for illustrating the X-ray imaging device of an embodiment of the invention The figure of the superposition of position correction image under condition.

Figure 12 be show an embodiment of the invention X-ray imaging device relative position change in the case where Fully synthetic mode under composograph figure.

Figure 13 be show an embodiment of the invention X-ray imaging device relative position change in the case where Partially synthetic mode under composograph figure.

Figure 14 is the figure for showing the control flow of X-ray imaging device of an embodiment of the invention.

Specific embodiment

Hereinafter, being illustrated based on the drawings the embodiment for embodying the present invention.

(structure of X-ray imaging device)

Referring to Fig.1~Fig. 8 is illustrated the structure of the X-ray imaging device 100 of an embodiment of the invention.

As shown in Figure 1, the X-ray imaging device 100 of an embodiment of the invention is a kind of by from quilts such as human bodies The outside X-ray irradiation (radioactive ray) of specimen T is shot the device of the obtained radioscopic image of image conversion in subject T.

X-ray imaging device 100 has x-ray bombardment portion 1, X-ray detection portion 2, control unit 6, display unit 7, operation portion 8, storage unit 9 and image processing apparatus 10.

Subject T X-ray irradiation of the x-ray bombardment portion 1 to the bracket 31 (referring to Fig. 2) for being imported into therapeutic appliance 30.X Detect the X-ray for having penetrated subject T in ray detection portion 2.X-ray bombardment portion 1 and X-ray detection portion 2 be respectively configured as every It is opposite for loading the top plate 3 of subject T.X-ray bombardment portion 1 and X-ray detection portion 2 are supported in a manner of it can move In mobile mechanism 4.Top plate 3 can be made to move in the horizontal direction by top plate driving portion 5.Mobile mechanism 4 and top plate driving portion 5 with Control unit 6 connects.Control unit 6 via mobile mechanism 4 and top plate driving portion 5 make x-ray bombardment portion 1, X-ray detection portion 2 and Top plate 3 is mobile, makes it possible to for being shot in the defined region of subject T image P (referring to Fig. 3).

X-ray bombardment portion 1 includes x-ray source 1a.X-ray source 1a is connect and leads to high voltage generating unit (not shown) Cross the X-ray tube for being applied high voltage and generating X-ray.X-ray source 1a is configured to that X-ray is made to project direction towards X-ray The detection faces of test section 2.X-ray bombardment portion 1 is connect with control unit 6.Control unit 6 is according to tube voltage, tube current and roentgenogram The preset photography conditions such as the time interval penetrated control x-ray bombardment portion 1, to generate X-ray from x-ray source 1a.

The X-ray of subject T is irradiated from x-ray bombardment portion 1 and has been penetrated in the detection of X-ray detection portion 2, is exported and is detected X-ray intensity detect signal accordingly.For example by FPD, (Flat Panel Detector: plate is detected in X-ray detection portion 2 Device) it constitutes.The x-ray detection signal of defined resolution ratio is output to image processing apparatus 10 by X-ray detection portion 2.At image It manages device 10 and obtains x-ray detection signal from X-ray detection portion 2, and generate image P (referring to Fig. 3).

Control unit 6 is to be configured to include CPU (Central Processing Unit: central processing unit), ROM (Read Only Memory: read-only memory) and RAM (Random Access Memory: random access memory) etc. calculating Machine.Control unit 6 controls the control unit in each portion of X-ray imaging device 100 as by executing defined control program by CPU It functions.The control of the progress x-ray bombardment portion 1 of control unit 6 and image processing apparatus 10 and mobile mechanism 4 and top plate driving The drive control etc. in portion 5.

Display unit 7 is, for example, the monitors such as liquid crystal display, can show the image P generated by image processing apparatus 10 Deng.Control unit 6 is configured to the control for make display unit 7 to show the image P generated by image processing apparatus 10.

Operation portion 8 is configured to accept the input related with X-ray of user.Control unit 6 is configured to via behaviour Make the input operation that portion 8 accepts user.In addition, operation portion 8 has the mould for switching the mode of aftermentioned image processing part 14 Formula switching push button 8a.In addition, the mode about image processing part 14, is described below.In addition, mode switch button 8a is this hair An example of bright " switching input unit ".

Storage unit 9 is constituted such as the storage device by hard disk drive.Storage unit 9 is configured to store image data, photography Condition and various setting values.Display unit 7, operation portion 8 and storage unit 9 respectively also can be set in image processing apparatus 10.

In addition, X-ray imaging device 100 is configured to obtain by radioscopy and X-ray both methods Image P.In addition, in radioscopy, by irradiating the quantity of radiation fewer than X-ray to subject T, quilt can be reduced On the other hand the amount of radiation of specimen T obtains the image P of low image quality.On the other hand, it is obtained in a way in X-ray The image P of high image quality.

In image processing apparatus 10, image procossing is carried out in real time in the photography of image P.Image processing apparatus 10 In this way be configured to include the processors 11 such as CPU or GPU (Graphics Processing Unit: graphics processing unit) and The computer of the storage units such as ROM and RAM 12.That is, image processing apparatus 10 is by making the execution of processor 11 be stored in storage unit 12 In image processing program 15 and constitute.Image processing apparatus 10 can also be by holding hardware (CPU) identical with control unit 6 Row image processing program, to be integrally formed with control unit 6.

Storage unit 12 is stored with the image processing program 15 for functioning computer as image processing apparatus 10. In addition, storage unit 12 is configured to image P generated by aftermentioned image production part 13 and composograph M etc. as image data 16 temporarily store.

Image processing apparatus 10 includes image production part 13 and image processing part 14, as by executing image procossing journey The obtained function of sequence 15.Image production part 13 and image processing part 14 can also be respectively by dedicated processor individually structures At.

Image production part 13 is configured to generate based on being detected from bracket 31 (referring to Fig. 2) for being imported into therapeutic appliance 30 The image P of the detection signal for the X-ray that body T is penetrated.Image production part 13 is based on the detection signal in X-ray detection portion 2 come with fortune The form of motion video generates image P.It is penetrated that is, intermittently irradiating X with specific time interval to subject T from x-ray bombardment portion 1 Line is successively detected the X-ray for having penetrated subject T by X-ray detection portion 2.Image production part 13 passes through will be from X-ray detection portion The 2 detection signals being sequentially output carry out image conversion, generate image P with the frame frequency of 15FPS.In addition, frame frequency be 7.5FPS~ 30FPS or so.Image P be, for example, have be in tonal gradation defined gray scale (10~12 etc.) pixel value Image.Therefore, in the pixel of low-pixel value, brightness value is small and is shown as black (dim), bright in the pixel of high pixel value Angle value is big and is shown as white (bright).In addition it is also possible to make picture inversion.

Image processing part 14 is configured to the multiple images P (reference will be continuously generated by image production part 13 It Fig. 3) is overlapped to make the image procossing of composograph M (referring to Fig. 6~Fig. 8).Specifically, image processing part 14 is first The region p including pair of marks 35 is extracted, from multiple images P as shown in Figure 3 to carry out position alignment.Then, image Processing unit 14 carries out two-dimensional position alignment using affine transformation etc. as shown in Figure 4, so that a pair of of mark in the p of each region The position of note 35 and the image P of current photography time point (newest)_NRegion p_NIn pair of marks 35 position consistency.Then, Image processing part 14 carries out position alignment to image P using the region p after position alignment as shown in Figure 5, thus generates position Position correction image Q after setting alignment.Finally, image processing part 14 (carries out the time by the way that position correction image Q to be overlapped Integral), to generate the synthesis (accumulative) for emphasizing image as the bracket for being highlighted bracket 31 like that as shown in Figure 6 to 8 Image M.

In addition, image processing part 14 is configured to carry out composograph M's whenever by 13 newly-generated image P of image production part It generates.Thereby, it is possible to display in real time the composograph M generated in the form of moving image in display unit 7.

Here, in the present embodiment, image processing part 14 is constituted are as follows: is allowed hand over as fully synthetic mode and partially synthetic Any mode in mode is overlapped to make composograph M as the multiple images P that will be generated by image production part 13 When mode.Fully synthetic mode is following mode: the image P of the entire period during being generated image by image processing part 14 (P₁~P_N, referring to Fig. 3) and it is all overlapped to generate composograph M (Mf (Ms), referring to Fig. 6 (Fig. 7)).In addition, partially synthetic Mode is following mode: by image processing part 14 by newest (nearest) 8 during a part during generating as image Image P (the P of frame_N-7~P_N, referring to Fig. 6) and it is overlapped to generate composograph M (Mp, referring to Fig. 8).In addition, partially synthetic Under mode, in the case where not obtaining the image of 8 frames, composograph M identical with fully synthetic mode is generated.

In addition, during referring to " during image generates " by the generation multiple images of image production part 13, specifically, referring to Since photography when until current photography time point during.In addition, " being overlapped the image P of newest 8 frame " refers to By the new image P in the image P being sequentially arranged_NWith from new image P_NIt rises towards 7 frames of the sequence in old direction Image P " P_N-7~P_N=1" the image P of this 8 frame is overlapped.In addition, fully synthetic mode and partially synthetic mode are the present invention respectively " entire during image synthesis model " and " image synthesis model during part " an example.

In addition, control unit 6 be configured to when by user's operation mode switch button 8a obtain based on to pattern switching by The related information of the switching with mode of the operation content of button 8a.In addition, control unit 6 is configured to obtain in advance before photography starts Information related with the switching of mode.Moreover, control unit 6 is constituted are as follows: by sending the switching with mode to image processing part 14 The pattern switching of image processing part 14 is any mould in fully synthetic mode and partially synthetic mode by related information Formula.

Then, referring to Fig. 2~Figure 13 to the X-ray of the present embodiment in coronary artery (angiocarpy) interventional therapy An example of the switching of the mode of device 100 is illustrated.

The X-ray imaging device 100 of present embodiment can be used in percutaneous coronary intervention.Percutaneous coronary intervention It is the treatment for making the stricture dilation of the blood vessel 40 (referring to Fig. 3) in the coronary artery of heart.

In percutaneous coronary intervention, as shown in Fig. 2, using the therapeutic appliance 30 for including bracket 31.Therapeutic appliance 30 The guide line 33 of bracket 31 and sacculus 32 and interior is nearby installed including bracket 31, the sacculus 32 for being equipped with bracket 31, front end Portion contains the conduit 34 of guide line 33.Bracket 31 is the tubular with mesh configuration by formation such as thin metals, and X-ray is held Easily through bracket 31 and bracket 31 is not easy to be clapped into image P.Therefore, saturating by X-ray in the sacculus 32 for being equipped with bracket 31 The pair of marks 35 that low (or being not through) material of the property crossed is constituted are arranged to mark.The pair of marks 35 are to clip bracket 31 mode is arranged near the both ends of bracket 31.In addition, bracket 31 be configured to due to sacculus 32 expands and from the state of folding Expansion.In addition, bracket 31 is an example of " equipment " of the invention.

As the specific treatment sequence of percutaneous coronary intervention, firstly, doctor is on one side referring to showing in display unit 7 By the real-time motion pictures (image) for the low image quality that radioscopy obtains, following operation is carried out on one side: conduit 34 is inserted into Into the blood vessel 40 of subject T, and make conduit 34 via the narrow positions of the blood vessel coronarius 40 of the arrival heart of blood vessel 40.

Then, doctor is on one side referring to the real-time fortune of the composograph M obtained by X-ray shown in display unit 7 The static image of motion video or composograph M carries out the position pair to narrow positions of bracket 31 (31a) and sacculus 32 on one side It is quasi-.Then, doctor carries out following operation: expanding sacculus 32 so that the narrow positions of blood vessel 40 is expanded, and will folded Bracket 31a expansion after be retained in blood vessel 40.Utilize bracket 31a from interior side bearing blood vessel 40 as a result,.In addition, doctor is on one side Referring to the real-time motion pictures of the composograph M obtained by X-ray or the static image of composograph M, confirm on one side Whether bracket 31a is by correctly indwelling.Then, in the case where bracket 31a is not by correctly indwelling, doctor is carried out by making Sacculus 32 reexpands etc. to adjust the operation of bracket 31a.In the case where carrying out these operations, bracket 31a and sacculus 32 The relative position of pair of marks 35 has almost no change.

Here, to the image of each pattern in the case where the relative position of bracket 31a and label 35 do not change The composograph M generated of reason portion 14 is illustrated.

(the case where fully synthetic mode)

In the case where being switched to fully synthetic mode, image processing part 14 is first as shown in Figure 3 from multiple images P's All images (image P₁~P_N) take out region p (the region p including pair of marks 35₁~p_N), to carry out position alignment.Then, Image processing part 14 carries out each region p as shown in Figure 4₁~p_NPosition alignment.Later, such as Fig. 5 institute of image processing part 14 Show like that using the region p after position alignment₁~p_N-1To image P₁~P_N-1Position alignment is carried out, after thus generating position alignment Position correction image Q₁~Q_N-1.Finally, image processing part 14 is by by position correction image Q₁~Q_N(in addition, Q_NWith P_NPhase Deng) be overlapped (carry out time integral) and generate composograph Mf shown in fig. 6.

Here, since bracket 31a and the relative position of label 35 do not change, so that each region p₁~p_N-1In Pair of marks 35 position and region p_NIn the modes of position consistency of pair of marks 35 carry out position alignment, thus in place Set correction image Q_i(1≤i≤N-1) and position correction image Q_NIn, bracket 31a is roughly the same position.As a result, will Position correction image Q (image P) is overlapped in obtained composograph Mf, and in position, correction chart is as Q₁~Q_NMiddle bracket 31a Almost without offset, thus bracket 31a is shown in display unit 7 with being emphasised.Then, it is continuously generated composograph Mf, and It is shown in display unit 7 as real-time motion pictures.

In addition, by the time, being used under fully synthetic mode with from photography in order to generate composograph Mf The number (frame number) of image P become more, therefore in the composograph Mf for being shown in display unit 7 as real-time motion pictures, prop up Frame 31a is gradually apparent from and realizes higher image quality.

Then, finishing the X-ray under fully synthetic mode due to the composograph Mf for obtaining enough high image quality When, image processing part 14 carries out the correction process for emphasizing bracket 31a to the composograph Mf ultimately produced.At the correction In reason, such as bracket 31a is different from blood vessel 40 and has rectilinear form, therefore is carried out by image processing part 14 for improving straight line The processing of the contrast of the part of shape etc..It is further highlighted by image processing part 14 according to composograph Mf generation as a result, The correction composograph Ms of the higher-definition of bracket 31a.Then, as shown in figure 8, correction composograph Ms is aobvious as static image Show in display unit 7.As a result, whether doctor can reliably confirm bracket 31a by correctly indwelling.

In addition, user can terminate X-ray after the composograph Mf that confirmed to obtain enough high image quality in real time, Therefore being able to suppress terminates X-ray with the state of the insufficient composograph M of image quality.In addition, user can be true in real time The composograph Mf for accepting to obtain enough high image quality promptly terminates X-ray later, therefore can effectively inhibit tested The amount of radiation of body T increases.

(the case where partially synthetic mode)

On the other hand, in the case where being switched to partially synthetic mode, image processing part 14 first as shown in Figure 3 from Image P (the image P of newest 8 (nearest) frames in multiple images P_N-7~P_N) take out the region (area p including pair of marks 35 Domain p_N-7~p_N), to carry out position alignment.Then, image processing part 14 carries out each region p as shown in Figure 4_N-7~p_N's Position alignment.Then, image processing part 14 is as shown in Figure 5 using the region p after position alignment_N-7~p_N-1To image P_N-7 ~P_N-1Carry out position alignment, the position correction image Q after thus generating position alignment_N-7~Q_N-1.Finally, image processing part 14 By by position correction image Q_N-7~Q_NIt is overlapped to generate composograph Mp shown in Fig. 8.

Here, bracket 31a and the relative position of label 35 do not change, therefore in the same manner as fully synthetic mode, in position Correct image Q_i(N-7≤i≤N-1) and position correction image Q_NIn, bracket 31a is roughly the same position.As a result, such as Fig. 7 It is shown, position correction image Q (image P) is being overlapped in obtained composograph Mp, in position, correction chart is as Q_N-7~ Q_NMiddle bracket 31a is almost without offset, and thus bracket 31a is shown in display unit 7 with being emphasised.Then, it is continuously generated conjunction It is shown in display unit 7 at image Mp, and as real-time motion pictures.

In addition, under partially synthetic mode, even if having passed through the time from photography, in order to generate composograph Mp and The number (frame number) of the image P used is also 8 frames without changing.Therefore, in the composograph for being shown as real-time motion pictures In Mp, the clarity of bracket 31a has almost no change.

Here, being closed entirely in the case where having carried out photography in 3 seconds as general photography conditions with the frame frequency of 15FPS At under mode, at the end of photography, generates and the image P (position correction image Q) of 45 frames is synthesized into obtained composograph Mf. That is, the frame number (45 frame) of the image used under fully synthetic mode in order to generate composograph M at the end of photography It is more than the frame number (8 frame) under partially synthetic mode.As a result, the feelings not changed in the relative position of bracket 31a and label 35 Under condition, compared with partially synthetic mode, under fully synthetic mode, the conjunction of bracket 31a clearly high image quality is shown in display unit 7 At image M.Thus, in the case where the relative position of bracket 31a and label 35 do not change, compared with partially synthetic mode, It is preferred that image processing part 14 is switched to fully synthetic mode.

On the other hand, the range of narrow positions it is big, can not be by narrow positions globally expanding etc. with 1 bracket 31 (31a) In the case of, carry out the therapeutic appliance 30 of the different new bracket 31b (31) of the bracket 31a for making to be equipped with from being retained in blood vessel 40 Reach the operation of the narrow positions of the blood vessel coronarius 40 of heart.Then, doctor is for utilization a pair of brackets 31a and 31b The blood vessel 40 of narrow positions is reliably supported from inside, on one side referring to the real-time fortune of the composograph M obtained by X-ray Motion video is carried out on one side by the operation of the bracket 31a of indwelling set and the positioning of new bracket 31b and sacculus 32.This Outside, bracket 31a and 31b is an example of " the first equipment " and " the second equipment " of the invention respectively.

Here, different from new bracket 31b, the bracket 31a set is not installed in sacculus 32.Therefore, such as Fig. 9 institute Show, new bracket 31b and the relative position of the pair of marks 35 of sacculus 32 do not change, on the other hand, the bracket 31a that has set with The pair of marks 35 of sacculus 32 make a relative move.That is, the bracket 31a and the relative position of label 35 that have set become Change.

Here, to the image processing part of each pattern in the case where the relative position of bracket 31a and label 35 change 14 composograph M generated are illustrated.

(the case where fully synthetic mode)

In the case where being switched to fully synthetic mode, in the same manner as above situation, image processing part 14 is first as shown in Figure 9 Like that from all images (the image P of multiple images P₁~P_N) take out region p (the region p including pair of marks 35₁~p_N).So Afterwards, image processing part 14 carries out region p as shown in Figure 10₁~p_NPosition alignment.Later, image processing part 14 such as Figure 11 Shown such using area p₁~p_N-1Generate position correction image Q₁~Q_N-1.Finally, image processing part 14 is by by position correction Image Q₁~Q_NIt is overlapped to generate composograph Mf shown in Figure 12.

Here, since the relative position of the pair of marks 35 of the bracket 31a and sacculus 32 that have set changes, so that each Region p₁~p_N-1In pair of marks 35 position and region p_NIn the modes of position consistency of pair of marks 35 carried out position When setting alignment, in position, correction chart is as Q_i(1≤i≤N-1) and position correction image Q_NIn, bracket 31b is roughly the same position It sets.As a result, as shown in figure 12, position correction image Q (image P) is being overlapped in obtained composograph Mf, bracket 31b is shown with being emphasised.On the other hand, the bracket 31a set is in position correction chart as Q_iWith position correction image Q_NIn be located at not Same position is (for example, the Q of Figure 11₁And Q_N).Therefore, as shown in figure 12, position correction image Q (image P) is being overlapped institute In obtained composograph Mf, in position, correction chart is as Q₁~Q_NThe offset of middle bracket 31a is big, and thus bracket 31a is shown with being blurred Show in display unit 7.

(the case where partially synthetic mode)

On the other hand, in the case where being switched to partially synthetic mode, in the same manner as above situation, image processing part 14 is first First as shown in Figure 9 from image P (the image P of newest 8 frame in multiple images P_N-7~P_N) take out including pair of marks 35 Region p (region p_N-7~p_N).Then, image processing part 14 carries out region p as shown in Figure 10_N-7~p_NPosition alignment. Later, the using area p as shown in Figure 11 of image processing part 14_N-7~p_N-1Generate position correction image Q_N-7~Q_N-1.Finally, Image processing part 14 is by by position correction image Q_N-7~Q_NIt is overlapped to generate composograph Mp shown in Figure 13.

Here, although the relative position of bracket 31a and label 35 changes, on newest (nearest) 8 frames (about 0.5 second left side It is right), bracket 31a and the variation of the relative position of label 35 are small.As a result, so that each region p_N-7~p_N-1In pair of marks 35 position and region p_NIn the mode of position consistency of pair of marks 35 when having carried out position alignment, in position correction chart picture Q_i(N-7≤i≤N-1) and position correction image Q_NIn, not only bracket 31b is roughly the same position, but also the bracket set 31a is also roughly the same position.As a result, as shown in figure 13, position correction image Q (image P) is being overlapped gained To composograph Mp in, bracket 31a and 31b are not deviated nearly all, and thus not only bracket 31b is shown in display with being emphasised In portion 7, the bracket 31a set is shown in display unit 7 with being also emphasised.In addition, under partially synthetic mode, since frame number is 8 frames, it is ensured that capableing of the frame number of fully visual identity bracket 31b.

(fully synthetic mode is compared with partially synthetic mode)

As a result, carrying out the opposite position of bracket 31 and label 35 user (doctor etc.) in X-ray imaging device 100 In the case where setting the operation not changed, by user by the pattern switching of image processing part 14 be fully synthetic mode.As a result, in X In radiography and after X-ray, can be shown in display unit 7 highlight bracket 31 so that its clearly high image quality conjunction At image Mf or correction composograph Ms.In addition, carrying out bracket 31 and label 35 in user in X-ray imaging device 100 Relative position variation operation in the case where, by user by the pattern switching of image processing part 14 be partially synthetic mode.As a result, It can make bracket 31 not fuzzy in X-ray and composograph Mp that is fully being emphasized is shown in display unit 7.

(control flow)

Then, the control flow of 4 pairs of X-ray imaging devices 100 is illustrated referring to Fig.1.

Firstly, in step s 11, control unit 6 judges whether to be switched to partially synthetic mode.It is judged as in control unit 6 and cuts In the case where being changed to partially synthetic mode, S23 is entered step, in step S23~S31, to be switched to partially synthetic mode State carries out X-ray.

In the case where control unit 6 is judged as and is not switched to partially synthetic mode, in step S12~S22, with switching X-ray is carried out for the state of fully synthetic mode.Firstly, in step s 12, having been carried out and photography by user to operation portion 8 Start information involved in related input operation and be sent to control unit 6, thus starts to carry out X-ray.Then, in step In rapid S13, control unit 6 makes X-ray detection portion 2 detect the X for having penetrated subject T by radiating X-ray from x-ray bombardment portion 1 Ray simultaneously exports detection signal.Then, image production part 13 is based on detection signal and generates image P_N。

Later, in step S14, image processing part 14 is from image P_NThe image P generated before₁~P_N-1With it is newly-generated Image P_NIt is middle to obtain region p respectively₁~p_N.Then, in step S15, image processing part 14 is based on region p_NCarry out region p₁~ p_N-1Position alignment.Later, in step s 16, image processing part 14 is by being based on region p₁~p_N-1Position alignment result Carry out image P₁~P_N-1Position alignment, Lai Shengcheng position correction image Q₁~Q_N-1.Then, in step S17, image procossing Portion 14 is by by position correction image Q₁~Q_NSuperposition is to generate composograph Mf.Later, in step S18, by image processing part The 14 composograph Mf generated are shown in display unit 7 via control unit 6.

Then, in step S19, control unit 6 will carry out operation portion 8 by user terminating related input behaviour with photography Information involved in making is sent to control unit 6, thus judges whether X-ray terminates.It is judged as that X-ray is taken the photograph in control unit 6 In the case that shadow is not over, in step S20, N is made to be incremented by (N=N+1), return to step S13, image production part 13 generates New image P_N。

In addition, in the case where control unit 6 is judged as that X-ray terminates, in the step s 21, image processing part 14 into The correction of the newest composograph Mf of row thus generates correction composograph Ms to emphasize bracket 31.Then, in step S22, The correction composograph Ms generated by image processing part 14 is shown in display unit 7 via control unit 6.Later, control flow knot Beam.

In addition, in step s 11, in the case where control unit 6 is judged as and is switched to partially synthetic mode, in step S23 In, start to carry out X-ray in the same manner as step S12.Then, in step s 24, in the same manner as step S12, image is generated Portion 13 is based on detection signal and generates image P_N。

Later, in step s 25, image processing part 14 is from image P_NThe image P generated before₁~P_N-1In it is newest The image P of (nearest)_N-7~P_N-1And newly-generated image P_NRegion p is obtained respectively_N-7~p_N.Then, in step S26, figure As processing unit 14 is based on region p_NCarry out region p_N-7~p_N-1Position alignment.Then, in step s 27, image processing part 14 By being based on region p_N-7~p_N-1Position alignment result carry out image P_N-7~P_N-1Position alignment, Lai Shengcheng position correction figure As Q_N-7~Q_N-1.Then, in step S28, image processing part 14 is by by position correction image Q_N-7~Q_NIt is overlapped next life At composograph Mp.Then, in step S29, the composograph Mp generated by image processing part 14 is shown in via control unit 6 In display unit 7.

Then, in step s 30, control unit 6 judges whether X-ray terminates in the same manner as step S19.In control unit In the case that 6 are judged as that X-ray is not over, in step S31, N is incremented by, and returns to step S24, image production part 13 generate new image P_N.In addition, in the case where control unit 6 is judged as that X-ray terminates, finishing control process.

(effect of present embodiment)

In the present embodiment, following effect can be obtained.

In the present embodiment, as described above, image processing part 14 is configured to be switched to partially synthetic mode, at this Under partially synthetic mode, image P is overlapped as object to generate by the image P during a part during being generated using image Composograph M (Mp).As a result, under partially synthetic mode, during the image P being overlapped is defined as a part (nearest) Image P, therefore the position of bracket 31a between the image P being overlapped can be reduced (bracket 31a and a pair of of sacculus 32 mark Note 35 relative position) variation.As a result, it is possible to inhibit the state deviated with bracket 31a to be overlapped, therefore energy It is enough to inhibit to obscure image P to be overlapped to bracket 31 in obtained composograph Mp.Thus, it is possible to which inhibit bracket 31 can Composograph Mp depending on property deterioration is shown in display unit 7.

In addition, in the present embodiment, image processing part 14 is configured in fully synthetic mode and partially synthetic mould It is switched between formula, wherein under fully synthetic mode, the image P of the entire period during being generated using image will scheme as object Composograph Mf is generated as P is overlapped, the image during a part under partially synthetic mode, during generating with image P is object, image P is overlapped to generate composograph Mp.Entire period inner support 31 during image generates as a result, Position have almost no change in the state of performed the operation in the case where, by being switched to fully synthetic mode, position almost without The bracket 31 of variation is reliably superimposed, therefore the composograph Mf of the clearly high image quality of bracket 31 can be made to be shown in display unit In 7.On the other hand, it is partially synthetic by being switched in the case that the variation of the position of inner support 31 is big during image generates Mode, the composograph Mp for being able to suppress the visual deterioration of bracket 31 are shown in display unit 7.As a result, by by image Processing unit 14 is configured to switch between fully synthetic mode and partially synthetic mode, is able to suppress the visual of bracket 31 Property deterioration composograph M be shown in display unit 7, and can make suitable for operation composograph M be shown in display unit 7 In.

In addition, in the present embodiment, image processing part 14 is constituted are as follows: under partially synthetic mode, generated with image The image P of regulation frame number (8 frame) during a part of period is object, and image P is overlapped.As a result, partially synthetic Under mode, the image P being overlapped be defined as a part during regulation frame number (8 frame) image P, therefore can be reliable Ground reduces the variation of the position of the bracket 31a between the image P being overlapped.As a result, it is possible to further suppress with bracket 31a hair The state for having given birth to offset is overlapped, therefore can further suppress image P being overlapped obtained composograph Mp Middle bracket 31 is fuzzy.

In addition, in the present embodiment, X-ray imaging device 100, which has, is switched to fully synthetic mode or portion for user Divide the mode switch button 8a of synthesis model.The pattern switching of image processing part 14 can be suitable for operation by user as a result, Mode, therefore the composograph M that can be reliably suppressed the visual deterioration of bracket 31 is shown in display unit 7, and can It is shown in the composograph M suitable for operation in display unit 7.

In addition, in the present embodiment, X-ray imaging device 100 has control unit 6, which carries out following control System: it is obtained before photography starts and the switching by the mode switch button 8a fully synthetic mode carried out or partially synthetic mode Related information.Thereby, it is possible to make control unit 6 obtain information related with mode before photography starts, therefore figure can be made Schema creation composograph M after switching since photography as processing unit 14.As a result, for example be switched to it is fully synthetic In the state of mode, the clearly composograph M of bracket 31 can be generated in advance, thus can operate X-ray imaging device 100 with In advance stop the irradiation of radioactive ray.Thus, it is possible to which the amount of radiation for effectively inhibiting subject T increases.

In addition, in the present embodiment, image processing part 14 is constituted are as follows: under partially synthetic mode, with inhibit due to The mode that bracket 31b causes bracket 31a in the composite image fuzzy relative to the relative movement of bracket 31a is by regulation frame number (8 Frame) image be overlapped.Thereby, it is possible to inhibit the composograph of the visual deterioration of bracket 31a under partially synthetic mode Mp is shown in display unit 7.

In addition, in the present embodiment, the regulation frame number (8 frame) under partially synthetic mode is can in composograph M The fully frame number of visual identity bracket 31b.Thereby, it is possible to the displays in display unit 7 being capable of fully visual identity bracket 31b And inhibit the composograph Mp of the visual deterioration of bracket 31a.

In addition, in the present embodiment, making under fully synthetic mode in order to generate composograph Mf at the end of photography The frame number (8 frame) for the image P that the frame number of image P is used than generating composograph Mp under partially synthetic mode It is more.Image processing part 14 can be reliably produce the clearly composite diagram of bracket 31 at the end of the photography of fully synthetic mode as a result, As Mf.

In addition, in the present embodiment, image processing part 14 is configured to by terminating to the photography under fully synthetic mode When composograph Mf generate for emphasizing the correction of bracket 31 correction composograph Ms, and display unit 7 is constituted To show correction composograph Ms at the end of photography under fully synthetic mode.User can utilize in fully synthetic mode as a result, Under photography after be shown in the correction composograph Ms of display unit 7 more accurately to identify the state of bracket 31.

In addition, in the present embodiment, image processing part 14 is constituted are as follows: under fully synthetic mode, image is generated the phase Between it is entire during image P be all overlapped.It is clear thereby, it is possible to generate bracket 31 more in advance under fully synthetic mode Clear composograph Mf.

In addition, in the present embodiment, image processing part 14 is constituted are as follows: under partially synthetic mode, with newest rule The image P of framing number (8 frame) is object, and image P is overlapped.Thereby, it is possible to make to inhibit branch under partially synthetic mode The fuzzy newest composograph Mp of frame 31 is shown in display unit 7, therefore user can confirm newest composograph on one side Mp reliably performs the operation on one side.

In addition, in the present embodiment, composograph M is to be highlighted the bracket of bracket 31 to emphasize image.As a result, can The composograph M of the visual deterioration of bracket 31 is enough inhibited to be shown in display unit 7.

[variation]

Furthermore, it is considered that embodiment of disclosure is illustrative, and unrestricted in all respects.This hair Bright range is not shown by the explanation of above embodiment, and is shown by patent claims, be also included in it is special The meaning of sharp claims equalization and all changes (variation) in range.

For example, showing the X-ray dress for coronary artery (angiocarpy) interventional therapy in the above-described embodiment Set 100 example, however, the present invention is not limited thereto.The present invention also can be applied to the use other than percutaneous coronary intervention on the way The X-ray imaging device used.It is able to suppress since cause relative to the variation of the relative position of mark (label) can for equipment Depending on property deterioration composograph be shown in display unit the present invention can also act as may occurrence of equipment position variation X-ray imaging device used in intravascular IVR (interventional radiology) treatment.

In addition, showing fully synthetic mode (image synthesis model during entire) in the above-described embodiment is that image is raw At the image P (P of the entire period of period₁~P_N) be all overlapped to generate the example of the mode of composograph M (Mf), but The invention is not limited thereto.In the present invention, it is also configured to that image generation is used only under image synthesis model during entire A part of image in the image of the entire period of period.Such as it is also possible under image synthesis model, to scheme during entire As the image that can not detect label in the entirely image of period during generating is excluded from the image to be overlapped.Separately Outside, be also possible to during entire under image synthesis model, every several frames from be sequentially arranged it is entire during image Middle extraction image, and the image in addition to the multiple images extracted is excluded from the image to be overlapped.Furthermore it is preferred that , during entire under image synthesis model, from be sequentially arranged it is entire during image in equably extraction figure Picture, and the image extracted is overlapped.Also, X-ray imaging device can also be configured to the image during entire to close At can be selected under mode fully synthetic mode and it is entire during synthesis model, under fully synthetic mode, during being generated using image It is entire during image in all images, during entire under synthesis model, image as described above is used only and generates the phase Between it is entire during image in a part of image.

In addition, showing partially synthetic mode (image synthesis model during part) in the above-described embodiment is by image Image P (P during a part during generation_N-7~P_N) be overlapped to generate the example of the mode of composograph M (Mp), However, the present invention is not limited thereto.It also may be constructed in the present invention are as follows: image is also used only under image synthesis model during part A part of image in the image during a part during generation.Such as it is also possible to the image synthesis model during part Under, the image that can not detect label in the image during a part during image is generated is from the image to be overlapped Middle exclusion.

In addition, the example that the position alignment of image P is carried out using pair of marks 35 is shown in the above-described embodiment, but The invention is not limited thereto.The position alignment of image can also be carried out without using label in the present invention.For example, it is also possible to detect Multiple characteristic points (for example, part that absorption radioactive ray are easier compared with other parts in subject) in image, so that Multiple characteristic points consistent mode between image carries out the position alignment of image.In this case, partially synthetic mould can be used Formula, to inhibit to generate the fuzzy composograph of bracket since characteristic point is relatively moved relative to bracket.

In addition, the example for using bracket as equipment is shown in the above-described embodiment, however, the present invention is not limited thereto.Example Such as, equipment is also possible to be fitted without the sacculus of bracket.In this case, such as in the bracket set and has markd sacculus Between when being positioned, can also use partially synthetic mode, generate bracket mould to inhibit the variation due to the position of bracket The composograph of paste.

In addition, showing will make under partially synthetic mode (image synthesis model during part) in the above-described embodiment The image of newest 8 frame during a part during generating for image is overlapped to generate the example of composograph M, but this It invents without being limited thereto.In the present invention, the frame number during part under image synthesis model is not limited to 8 frames, can both be less than 8 frames, 8 frames can also be more than.In addition, frame number preferably correspondingly changes with frame frequency.It, can will for example for example, if frame frequency is 30FPS Image more than 15 frames of 8 frames is overlapped, if frame frequency is 7.5FPS, can by for example less than the image of 4 frames of 8 frames into Row superposition.In addition, during part under image synthesis model, if the frame number for the image being overlapped is excessive (to be used for getting frame It is long during number), then the equipment that change in location occurs in the composite image is easy faintly to show, if the image being overlapped Frame number it is very few, then be highlighted equipment with being unable to fully in the composite image.Therefore, during part under image synthesis model The frame number for the image being overlapped is preferably with 0.3 second~1 second or so corresponding frame number and to be more than 4 frames, but the present invention is unlimited Due to the frame number.

In addition, showing the image under partially synthetic mode (image synthesis model during part) in the above-described embodiment The image of newest 8 frame is overlapped to generate the example of composograph M, however, the present invention is not limited thereto by processing unit 14.At this It is also possible to during part under image synthesis model in invention, image processing part is by a part of phase other than newest period The image of interior regulation frame number is overlapped to generate composograph.For example, image processing part can also scheme during part As the image of the regulation frame number of first half or middle section during generating image under synthesis model is overlapped.

In addition, showing the switching that control unit 6 obtains before photography starts in advance with mode in the above-described embodiment has The example of the information of pass, however, the present invention is not limited thereto.It also may be constructed in the present invention are as follows: control unit is obtained when photographing and starting Information related with the switching of mode.For example, it is also possible to which X-ray imaging device is constituted are as follows: based on user to switching input unit Handover operation come with switch after mode start to photograph.Alternatively, it is also possible to which X-ray imaging device is configured to Switch the mode of image processing part in X-ray.

In addition, being shown image processing part when by user's operation mode switch button 8a in the above-described embodiment 14 pattern switching is the example of fully synthetic mode and any one mode in partially synthetic mode, however, the present invention is not limited thereto. In the present invention, the mode of image processing part can also be switched based on the switching instruction of the user other than mode switch button. For example, can both switch the mode of image processing part based on the sound of user, can also the movement based on user (for example, hiding Keep off the movement of user as the light of optical sensor) switch the mode of image processing part.

In addition, X-ray imaging device can also be not based on the instruction of the switching of user and automatically switch image processing part Mode.At this point, image recognition, X-ray imaging device can also be carried out to the initial image taken when photographing and starting Automatically switch the mode of image processing part based on the result of image recognition.For example, it is also possible to which X-ray imaging device is constituted Are as follows: in the case where identifying multiple brackets in the initial image taken when photographing and starting, X-ray imaging device is automatically It is partially synthetic mode by the pattern switching of image processing part, in the case where unidentified multiple brackets out, by image processing part Pattern switching be fully synthetic mode.

It is configured to allow hand over image processing part 14 in X-ray in addition, showing in the above-described embodiment The example of mode, however, the present invention is not limited thereto.In the present invention, it is also configured to that image can be switched in radioscopy The mode of processing unit.

In addition, showing the position for extracting the region p including pair of marks 35 to carry out image P in the above-described embodiment The example of alignment, however, the present invention is not limited thereto.In the present invention, the position alignment of image can also be carried out without extracting region.

Description of symbols

6: control unit；7: display unit；8a: mode switch button (switching input unit)；13: image production part；14: at image Reason portion；31: bracket (equipment)；31a: bracket (equipment, the first equipment)；31b: bracket (equipment, the second equipment)；100:X ray Camera；M, Mf, Mp: composograph；Ms: correction composograph；P: image；T: subject.