阅读说明：本技术 一种图像采集机构、图像采集方法以及图像采集设备 (Image acquisition mechanism, image acquisition method and image acquisition equipment ) 是由 刘承香 邱文辉 梁富淋 于 2021-06-29 设计创作，主要内容包括：本发明实施例提供了一种图像采集机构、图像采集方法以及图像采集设备,所述图像采集机构处于液体环境中,所述液体环境中存在产生热扰动现象的待测组件,所述图像采集机构包括：液泵组件,用于抽取所述液体环境中的液体冲刷所述待测组件的目标区域；图像采集组件,用于采集与冲刷后目标区域对应的测量光学图像。通过液泵组件直接从液体环境中不断从液体冲刷待测组件的目标区域,不需要进行额外填补液体；液流冲刷待测物体的目标区域带走热量减少温度差,从而减少热扰动现象的产生,图像采集组件采集高质量的测量光学图像。(The embodiment of the invention provides an image acquisition mechanism, an image acquisition method and image acquisition equipment, wherein the image acquisition mechanism is positioned in a liquid environment, a component to be detected which generates a thermal disturbance phenomenon exists in the liquid environment, and the image acquisition mechanism comprises: the liquid pump assembly is used for pumping liquid in the liquid environment to flush a target area of the component to be tested; and the image acquisition assembly is used for acquiring a measurement optical image corresponding to the flushed target area. The target area of the component to be tested is continuously flushed from the liquid in the liquid environment directly through the liquid pump component without additionally filling the liquid; the liquid flow washes a target area of an object to be measured to take away heat, so that the temperature difference is reduced, the generation of a thermal disturbance phenomenon is reduced, and the image acquisition assembly acquires a high-quality measurement optical image.)

1. The utility model provides an image acquisition mechanism, its characterized in that, image acquisition mechanism is in the liquid environment, there is the subassembly that awaits measuring that produces the thermal disturbance phenomenon in the liquid environment, image acquisition mechanism includes:

the liquid pump assembly is used for pumping liquid in the liquid environment to flush a target area of the component to be tested;

and the image acquisition assembly is used for acquiring a measurement optical image corresponding to the flushed target area.

2. The image capturing mechanism of claim 1, wherein the image capturing assembly includes:

the image collector is used for collecting the measuring optical image;

and the waterproof cover is used for wrapping the image collector and isolating the image collector from a liquid environment.

3. The image capturing mechanism of claim 2, wherein the image capturing assembly further comprises:

and the reflecting element is arranged in the waterproof cover and used for reflecting the light of the component to be detected to the image acquisition component.

4. The image capturing mechanism of claim 1, 2 or 3, wherein the fluid pump assembly includes:

the liquid pump body is used for pumping liquid in the liquid environment;

and the liquid pump water pipe is connected with the liquid pump body and is used for conveying the liquid pumped by the liquid pump body and flushing the target area.

5. The image capturing mechanism of claim 4, wherein the fluid pump body includes a hydraulic pump connected to the fluid pump water line, a motor connected to the hydraulic pump,

the motor is used for driving the hydraulic pump to pump liquid in the liquid environment.

6. The image capturing mechanism of claim 4, wherein the inlet end of the liquid pump water line is connected to the liquid pump body and the outlet end of the liquid pump water line is aligned with the target area.

7. The image capturing mechanism of claim 1, 2 or 3, wherein the fluid pumping assembly is fixedly connected to the image capturing assembly.

8. The image capturing mechanism of claim 1, wherein the fluid environment is an aqueous environment.

9. An image acquisition method is applied to an image acquisition mechanism, the image acquisition mechanism comprises a liquid pump assembly and an image acquisition assembly, the image acquisition mechanism is in a liquid environment, and an assembly to be detected which generates a thermal disturbance phenomenon exists in the liquid environment, the method comprises the following steps:

the liquid pump assembly pumps liquid in the liquid environment to wash a target area of the assembly to be tested;

and the image acquisition component acquires the corresponding measurement optical image of the flushed target area.

10. An image acquisition apparatus, characterized by comprising an image acquisition mechanism according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of measuring instruments, in particular to an image acquisition mechanism, an image acquisition method and image acquisition equipment.

Background

In the image processing-based underwater object dimension measurement experiment, it is found that a measured object having a self-heating property is in heat transfer with a fluid near the surface due to a temperature difference with a surrounding liquid. The fluid that undergoes heat transfer expands due to heat, decreasing in density and decreasing in temperature and density. When the descending fluid contacts the object to be measured, heat transfer occurs, the temperature increases, the density decreases, the fluid expands again, and the fluid is repeatedly circulated to form a heat convection phenomenon. The thermal convection phenomenon can cause the fluid in the surrounding environment of the measured object to form 'non-uniform distribution of a temperature field', the refractive index of the fluid is changed, and an image shot by a camera is distorted, namely the 'thermal disturbance' phenomenon. The heat transfer (heat conduction, heat radiation and heat convection) generated by the high temperature of the measured object seriously affects the imaging quality of the camera, and the high temperature changes the temperature distribution of the imaging space to cause the nonlinear change of the refractive index, so that the light is deflected to finally affect the measurement error of the measured object. Different from linear imaging in vision measurement under the condition of normal temperature, the imaging light of a high-temperature object is not transmitted in a single straight line any more, continuous deflection is generated in the transmission process from high temperature to normal temperature due to uneven distribution of temperature, the light is transmitted in a straight line continuously in a normal-temperature imaging space, and finally, a pixel offset error is generated on an imaging plane.

In the thermal disturbance removal technology, most of the thermal disturbance removal technology adopts a method of model establishment and algorithm restoration to process a thermal disturbance phenomenon after an image is shot. This method is relatively complex to implement and the parameters required in the model are difficult to obtain accurately. Moreover, under different working conditions, the influence of the thermal disturbance on the optical imaging in the visual measurement mode is related to the temperature difference between the object and the surrounding fluid environment. Therefore, under different temperature difference conditions, the degrees of the measured object affected by the thermal disturbance in the measurement are different, and the method for establishing the model and recovering the algorithm has no better robustness, so that the actual effect of the thermal disturbance eliminating method based on establishing the model and recovering the algorithm is not ideal.

Disclosure of Invention

In view of the above, embodiments of the present invention are proposed in order to provide an image capturing mechanism and a corresponding image capturing method, and an image capturing apparatus, which overcome or at least partially solve the above problems.

The embodiment of the invention discloses an image acquisition mechanism, wherein the image acquisition mechanism is arranged in a liquid environment, a component to be detected which generates a thermal disturbance phenomenon exists in the liquid environment, and the image acquisition mechanism comprises:

the liquid pump assembly is used for pumping liquid in the liquid environment to flush a target area of the component to be tested;

and the image acquisition assembly is used for acquiring a measurement optical image corresponding to the flushed target area.

Optionally, the image acquisition assembly comprises:

the image collector is used for collecting the measuring optical image;

and the waterproof cover is used for wrapping the image collector and isolating the image collector from a liquid environment.

Optionally, the image acquisition assembly further comprises:

and the reflecting element is arranged in the waterproof cover and used for reflecting the light of the component to be detected to the image acquisition component.

Optionally, the liquid pump assembly comprises:

the liquid pump body is used for pumping liquid in the liquid environment;

and the liquid pump water pipe is connected with the liquid pump body and is used for conveying the liquid pumped by the liquid pump body and flushing the target area.

Optionally, the liquid pump body comprises a hydraulic pump connected with the liquid pump water pipe, a motor connected with the hydraulic pump,

the motor is used for driving the hydraulic pump to pump liquid in the liquid environment.

Optionally, the inlet end of the liquid pump water pipe is connected with the liquid pump body, and the outlet end of the liquid pump water pipe is aligned with the target area.

Optionally, the liquid pump assembly is fixedly connected to the image capturing assembly.

Optionally, the liquid environment is an aqueous environment.

The embodiment of the invention also discloses an image acquisition method, which is applied to an image acquisition mechanism, wherein the image acquisition mechanism comprises a liquid pump assembly and an image acquisition assembly, the image acquisition mechanism is positioned in a liquid environment, and an assembly to be detected which generates a thermal disturbance phenomenon exists in the liquid environment, and the method comprises the following steps:

the liquid pump assembly pumps liquid in the liquid environment to wash a target area of the assembly to be tested;

and the image acquisition component acquires the corresponding measurement optical image of the flushed target area.

The embodiment of the invention also discloses image acquisition equipment which comprises the image acquisition mechanism.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, the liquid pump assembly is used for pumping the liquid in the liquid environment to wash the target area of the assembly to be tested; and the image acquisition component acquires the corresponding measurement optical image of the flushed target area. The liquid pump assembly directly and continuously washes the target area of the assembly to be detected from liquid in a liquid environment without additionally filling liquid; the liquid flow washes away the target area of the object to be measured to take away heat so as to reduce temperature difference, and simultaneously the liquid flow washes away bubbles attached to the target area of the object to be measured, so that the generation of thermal disturbance is reduced, and the image acquisition assembly acquires high-quality measurement optical images.

Drawings

FIG. 1 is a block diagram of one embodiment of an image acquisition mechanism of the present invention;

FIG. 2 is a schematic diagram illustrating comparison between effects of an embodiment of an image capturing mechanism according to the present invention;

FIG. 3 is a flowchart illustrating the steps of an embodiment of an image capture method of the present invention.

Description of reference numerals: 1-a component to be tested, 2-a liquid pump component, 201-a liquid pump body, 202-a liquid pump water pipe, 3-an image acquisition component, 301-an image acquisition device, 302-a waterproof cover and 303-a reflection element.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The reason for the formation of thermal disturbances is mainly the temperature difference between the surface temperature of the object and the temperature of the liquid environment in which the object is located. So that there is heat transfer between the two. In the heat transfer process, the refractive index of a water body is uneven due to local heating, so that an imaging light field is uneven, and an image shot underwater is distorted. Secondly, the dissolved amount of the gas in the water is inversely proportional to the temperature, so that due to the existence of the temperature difference, the surface of the object to be measured can cover some precipitated bubbles to cover the edge of the object, and the edge of the object to be shot is blurred.

In the related art, a mathematical modeling mode is mostly adopted to describe the motion law of the thermal disturbance, and a large number of generation and solution parameters are introduced. Due to the fact that the difficulty in obtaining part of parameters is high, the situation that modeling is inaccurate or even cannot be conducted exists. This situation is not favorable for the correction and restoration of the subsequent underwater thermal disturbance degraded image. Meanwhile, in order to obtain partial parameters such as liquid flow rate, liquid temperature, density and the like, a large number of sensors need to be intervened. The intervention of the sensor increases the assembly volume of the device, increasing the cost of the device.

Referring to fig. 1, a structural diagram of an embodiment of an image capturing mechanism according to the present invention is shown, where the image capturing mechanism is located in a liquid environment, and a component 1 to be measured that generates a thermal disturbance phenomenon exists in the liquid environment, and the image capturing mechanism specifically includes:

the liquid pump component 2 is used for pumping liquid in the liquid environment to wash a target area of the component to be tested;

and the image acquisition component 3 is used for acquiring a measurement optical image corresponding to the flushed target area.

In practical use, the image acquisition mechanism is integrally placed in a liquid environment, the surface of the component 1 to be measured in the liquid environment has a temperature difference with the surrounding liquid environment, and then the surface of the component 1 to be measured has a thermal disturbance phenomenon, wherein the liquid environment can be a water environment, and a person skilled in the art can also use the image acquisition mechanism provided by the embodiment of the invention in other liquid environments according to requirements. The following examples illustrate the invention in more detail in an aqueous environment.

The image acquisition mechanism can shoot underwater images of the component 1 to be measured which generates the thermal disturbance phenomenon. Then, the underwater component 1 to be measured can be subjected to dimension measurement based on image processing.

Before shooting the image, start liquid pump module 2, liquid pump module 2 draws water around, erodes the target area on 1 surface of subassembly that awaits measuring, and the fluid that has certain speed can take away the heat on 1 surface of subassembly that awaits measuring rapidly to reduce the temperature on subassembly surface that awaits measuring, reduce the production of thermal disturbance, improve the definition of subassembly that awaits measuring. At this time, the image acquisition assembly acquires a measurement optical image corresponding to the flushed target area.

In a preferred embodiment of the present invention, the image capturing assembly 3 comprises:

an image collector 301 for collecting the measurement optical image;

and the waterproof cover 302 is used for wrapping the image collector and isolating the image collector from a liquid environment.

The image capturing assembly includes an image capturing device 301 and a waterproof cover 302. The image collector 301 collects the measurement optical image; the waterproof cover 302 wraps the image collector to isolate the image collector from the liquid environment. The image collector is protected in a sealing mode, and the damage to the image collector caused by water entering the image collector is avoided. The basic parameters of the image collector 301, such as the shooting pixel, the exposure time, the imaging color, the sensitivity, the white balance, the color temperature, and the like, may be determined by those skilled in the art according to the actual use environment, and this is not specifically limited in the embodiment of the present invention. For the waterproof cover 302, since the image collector 301 is wrapped, the image collector 301 needs to take a picture, that is, at least one side of the waterproof cover 302 is transparent so that the image collector 301 takes a picture through the side. The waterproof cover 302 can be in a cube shape and consists of six faces, and joints of the faces are bonded through waterproof adhesives; the shape of the waterproof cover 302 may also be a spherical cone, and the like, and those skilled in the art may adopt other shapes of the waterproof cover 302 according to the shape and the design requirement of the image acquirer 301, which is not limited in the embodiment of the present invention. The material composition of the waterproof cover 302 may be a single material composition, or may be a composite of multiple materials, which is not specifically limited in this embodiment of the present invention.

In a preferred embodiment of the present invention, the image capturing assembly 3 further comprises:

the reflecting element 303 is arranged in the waterproof cover 302 and used for reflecting light rays of the component 1 to be tested to the image acquisition component 3.

Can be parallel with the direction of the subassembly 1 that awaits measuring when image collector 301's shooting lens direction, can reduce the horizontal size of image acquisition mechanism, but because both are parallel, image collector 301 can't directly gather the measurement optical image of the subassembly 1 that awaits measuring, at this moment, can set up reflective element 303 at buckler 302, the reflection the light of subassembly 1 that awaits measuring extremely image acquisition subassembly 3, image collector 301 just can shoot the measurement optical image of the subassembly 1 that awaits measuring. The reflecting element 303 may be movable, and the position of the reflecting element may be adjusted, so that the image collector 301 may collect a complete measurement optical image. The reflecting element 303 may also be fixed, and a complete optical image may be acquired by adjusting the position of the image acquisition assembly 3 as a whole. The embodiment of the present invention is not limited thereto.

In addition, the direction of the shooting lens of the image collector 301 may also be perpendicular to the direction of the component 1 to be measured, and at this time, the image collector 301 may directly collect the image of the component to be measured. However, the transverse dimension will increase, and those skilled in the art can arrange the components according to actual needs, which is not limited by the embodiment of the present invention.

In a preferred embodiment of the present invention, the liquid pump assembly 2 includes:

a liquid pump body 201 for pumping the liquid in the liquid environment;

and a liquid pump water pipe 202 connected with the liquid pump body 201 and used for conveying the liquid pumped by the liquid pump body and flushing the target area.

Liquid pump body 201 is starting the continuous extraction liquid in the back from the liquid environment, and the liquid pump body wholly arranges the liquid environment in, can dispel the heat fast to the liquid pump body, provides the work efficiency of liquid pump body.

The liquid pump water pipe 202 connected to the liquid pump body 201 transports the liquid pumped by the liquid pump body 201 and washes the target area, before the liquid pump body is started, the position of the water outlet of the liquid pump water pipe can be adjusted to make the water outlet of the liquid pump water pipe align with the target area, and the water in the liquid pump water pipe can accurately wash the target area. The liquid pump water pipe may be composed of all hoses, all hard pipes, or a part of hose and a part of hard pipe, and this is not particularly limited in the embodiment of the present invention.

In addition, quick-operation joint can be installed to the one end that liquid pump water pipe 202 is connected with liquid pump body 201, also installs corresponding quick-operation joint on the liquid pump body 202 for liquid pump water pipe 202 also can reduce the possibility of revealing when can pull out fast with liquid pump body 202. Of course, the liquid pump water pipe 202 and the liquid pump body 202 can be connected by a pipe clamp.

In a preferred embodiment of the present invention, the liquid pump body 202 includes a hydraulic pump connected to the liquid pump water pipe 202, a motor connected to the hydraulic pump,

the motor is used for driving the hydraulic pump to pump liquid in the liquid environment.

The liquid pump body 202 includes a hydraulic pump and a motor, and the structure of the hydraulic pump can be a gear pump, a vane pump, a plunger pump and a screw pump. Wherein, the gear pump: the volume is small, the structure is simple, the requirement on the cleanliness of the environment is not strict, and the price is low; however, the pump shaft is subjected to unbalanced force, the abrasion is serious, and the leakage is large. A vane pump: the method is divided into a double-acting vane pump and a single-acting vane pump. The pump has the advantages of uniform flow distribution, stable operation, low noise, higher acting pressure and volume efficiency than a gear pump and more complex structure than the gear pump. A plunger pump: the volume efficiency is high, the leakage is small, and the device can work under high pressure; but the structure is complex, the requirements on material and processing precision are high, the price is high, and the requirement on the cleanliness of the environment is high. Plunger pumps are generally used when gear pumps and vane pumps cannot meet the requirements. Those skilled in the art will select the method according to the actual application requirements, and the embodiment of the present invention is not limited thereto. The connection of the motor and the hydraulic pump can be fixed connection and direct connection, wherein the fixed connection is that the hydraulic pump shell is arranged on the flange of the motor and the hydraulic pump in a flange mounting mode and in a close fit clearance. The direct connection is that the pump shaft is connected with the output shaft of the motor through a gear or a coupling. Those skilled in the art will select the method according to the actual application requirements, and the embodiment of the present invention is not limited thereto.

In a preferred embodiment of the present invention, the liquid pump assembly 2 is fixedly connected to the image capturing assembly 3.

In practical application, the liquid pump assembly 2 and the image acquisition assembly 3 are fixedly connected into a whole through a fastener.

In the embodiment of the invention, the liquid pump assembly is used for pumping the liquid in the liquid environment to wash the target area of the assembly to be tested; and the image acquisition component acquires the corresponding measurement optical image of the flushed target area. The liquid pump assembly directly and continuously washes the target area of the assembly to be detected from liquid in a liquid environment without additionally filling liquid; the liquid flow washes away the target area of the object to be measured to take away heat so as to reduce temperature difference, and simultaneously the liquid flow washes away bubbles attached to the target area of the object to be measured, so that the generation of thermal disturbance is reduced, and the image acquisition assembly acquires high-quality measurement optical images.

In order that those skilled in the art may better understand the embodiments of the present invention, they will now be described by way of the following examples: the image acquisition mechanism is positioned in the water body environment.

The image acquisition assembly consists of a camera (an image collector) and a waterproof cover. The camera is used for gathering the optical image of the object that awaits measuring under water, and the buckler plays the effect of protection camera in order to isolate camera and liquid environment.

The liquid pump assembly mainly comprises a liquid pump (body) and a liquid pump water pipe. The liquid pump pumps the water around the liquid pump, and the water pump water pipe conveys the water pumped by the water pump.

The object of the component to be measured and the acquired image is easy to cause optical distortion due to thermal disturbance.

Firstly, a liquid pump assembly is installed, the position of a liquid pump water pipe is adjusted, and a water outlet of the liquid pump water pipe is guaranteed to be aligned to a target area of an assembly to be detected, which is to be acquired by an image acquisition assembly.

And then, heating the component to be detected, so that the surface of the component to be detected and the surrounding water environment generate temperature difference, and further the surface of the component to be detected generates a thermal disturbance phenomenon, and an experimental environment is provided for thermal disturbance elimination at the back.

When the surface of the component to be measured has severe thermal disturbance, the liquid pump component is started, the liquid pump component pumps water around, the target area on the surface of the component to be measured is washed by the liquid pump water pipe, and the heat on the surface of the component to be measured is rapidly taken away by the fluid at a certain speed, so that the temperature of the surface of the component to be measured is reduced, the generation of thermal disturbance is reduced, and the definition of the component to be measured is improved. And the image acquisition assembly acquires a measurement optical image corresponding to the flushed target area. The experimental effect can be seen in fig. 2, the left image in fig. 2 is an underwater measurement optical image collected without any processing, and the right image in fig. 2 is a measurement optical image collected after being processed by the embodiment of the present invention, so that it is obvious that the embodiment of the present invention can effectively eliminate the thermal disturbance phenomenon, and can better improve the optical imaging quality of the object to be measured.

In the existing thermal disturbance elimination technology, most methods start from algorithm software, and the processing algorithm is complex and has no universality. In addition, in order to obtain various parameters, various sensors are required to be matched, so that the volume of the equipment and the cost of the equipment are increased. The embodiment of the invention starts from the aspect of hardware, only one liquid pump mechanism needs to be added, the water source of the liquid pump is locally obtained, and additional filling is not needed. The water flow scours the surface of the object to be measured, takes away heat, reduces temperature difference and accordingly reduces thermal disturbance. Meanwhile, the water flow washes away the bubbles attached to the surface of the object to be measured, and the embodiment of the invention is quite simple to realize, is suitable for various liquid environments, and has relatively low cost. The optical imaging quality of the object to be detected can be better improved, and the subsequent detection and application are facilitated.

Referring to fig. 3, a flowchart illustrating steps of an embodiment of an image capturing method according to the present invention is shown, and is applied to an image capturing mechanism, where the image capturing mechanism includes a liquid pump assembly and an image capturing assembly, the image capturing mechanism is located in a liquid environment, and a component to be measured that generates a thermal disturbance phenomenon exists in the liquid environment, and the method specifically includes the following steps:

step 301, a liquid pump assembly pumps liquid in the liquid environment to flush a target area of the assembly to be tested;

step 302, the image acquisition component acquires a measured optical image corresponding to the flushed target area.

In a preferred embodiment of the present invention, the image capturing assembly includes an image collector and a waterproof cover wrapping the image collector, and the step of capturing the optical image measured by the image capturing assembly after the flushing of the target area includes:

substep 3021, collecting the measurement optical image by an image collector;

and a substep 3022, isolating the image collector from a liquid environment by a waterproof cover.

In a preferred embodiment of the present invention, the image capturing assembly further includes a reflective element inside the waterproof cover, and the step of capturing the optical image of the target area measured correspondingly after the flushing by the image capturing assembly further includes:

in sub-step 3023, the light from the device under test is reflected by the reflective element to the image capturing device.

In a preferred embodiment of the present invention, the liquid pump assembly includes: the liquid pump body, with the liquid pump water pipe of this body coupling of liquid pump. The step that the liquid pump assembly pumps the liquid in the liquid environment to wash the target area of the component to be tested comprises the following steps;

substep 3011, the liquid pump body draws the liquid in the liquid environment;

and a substep 3012, delivering the liquid pumped by the liquid pump body and flushing the target area by a liquid pump water pipe.

In a preferred embodiment of the present invention, the liquid pump body includes a hydraulic pump connected to the liquid pump water pipe, and a motor connected to the hydraulic pump, and the step of pumping the liquid in the liquid environment by the liquid pump body includes:

sub-step 30111, the motor drives the hydraulic pump to pump the liquid in the liquid environment.

In a preferred embodiment of the present invention, the inlet end of the liquid pump water pipe is connected to the liquid pump body, and the outlet end of the liquid pump water pipe is aligned with the target area.

In a preferred embodiment of the present invention, the liquid pump assembly is fixedly connected to the image capturing assembly.

In a preferred embodiment of the present invention, the liquid environment is an aqueous environment.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

As for the method embodiment, since it is basically similar to the apparatus embodiment, the description is simple, and the relevant points can be referred to the partial description of the apparatus embodiment.

The embodiment of the invention also discloses image acquisition equipment which comprises the image acquisition mechanism.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The image capturing mechanism, the image capturing method and the image capturing device provided by the present invention are described in detail above, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.