阅读说明：本技术 显示多种光学图像分辨率的方法及共焦激光扫描成像仪 (Method for displaying resolution of multiple optical images and confocal laser scanning imager ) 是由 龚骏 李超宏 于 2021-07-15 设计创作，主要内容包括：本发明涉及光学图像处理领域,具体涉及一种显示多种光学图像分辨率的方法及共焦激光扫描成像仪,至少包括以下步骤：图像接收模块接收第一指令后,向图像采集模块发送第二指令；图像采集模块接收第二指令后,驱动扫描振镜按照预先设定的图像分辨率标志位进行扫描,获得扫描图像的信息；图像处理模块根据所述图像分辨率标志位,切换至相应的数据传输模式；图像传输模块将所述扫描图像的信息传输至所述图像接收模块,所述图像接收模块接收所述扫描图像的信息,并对所述扫描图像进行显示成不同分辨率的图像。(The invention relates to the field of optical image processing, in particular to a method for displaying resolution ratios of various optical images and a confocal laser scanning imager, which at least comprises the following steps: after receiving the first instruction, the image receiving module sends a second instruction to the image acquisition module; after receiving the second instruction, the image acquisition module drives the scanning galvanometer to scan according to a preset image resolution flag bit to obtain information of a scanned image; the image processing module switches to a corresponding data transmission mode according to the image resolution flag bit; the image transmission module transmits the information of the scanned image to the image receiving module, and the image receiving module receives the information of the scanned image and displays the scanned image into images with different resolutions.)

1. A method of displaying a plurality of optical image resolutions, comprising at least the steps of:

after receiving the first instruction, the image receiving module sends a second instruction to the image acquisition module;

after receiving the second instruction, the image acquisition module drives the scanning galvanometer to scan according to a preset image resolution flag bit to obtain information of a scanned image;

the image processing module switches to a corresponding data transmission mode according to the image resolution flag bit;

the image transmission module transmits the information of the scanned image to the image receiving module, and the image receiving module receives the information of the scanned image and displays the scanned image into images with different resolutions.

2. The method of displaying multiple optical image resolutions according to claim 1, said first instruction being user initiated or system initiated.

3. The method of displaying multiple optical image resolutions according to claim 1, the scan image being a fundus image.

4. The method according to claim 1, wherein the data transmission mode is any one of wired and wireless.

5. The method according to claim 1, wherein the image resolution flag is any one or more of 512 ± 50, 1024 ± 100, 2048 ± 300, 3072 ± 500 and 4096 ± 500.

6. An apparatus for switching an optical scanning image resolution in real time, the apparatus comprising:

the image receiving module is used for sending a second instruction to the image acquisition module after receiving the first instruction;

the image acquisition module drives the scanning galvanometer to scan after receiving the second instruction so as to obtain a scanning image;

the image processing module is used for switching to a corresponding data transmission mode according to the image resolution flag bit;

the image transmission module transmits the scanned image to the image receiving module, and the image receiving module receives the scanned image and analyzes the scanned image into different resolution modes.

7. A confocal laser fundus scanner implementing the method of displaying multiple optical image resolutions of any one of claims 1-5.

8. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of displaying a plurality of optical image resolutions according to any one of claims 1 to 5.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of displaying a plurality of optical image resolutions according to any one of claims 1 to 5 when executing the computer program.

Technical Field

The invention relates to the field of optical image processing, in particular to a method for displaying resolution ratios of various optical images and a confocal laser scanning imager.

Background

The confocal laser scanning imager belongs to the field of medical imaging and is used for acquiring fundus images so as to facilitate medical personnel to check fundus diseases or assist the medical personnel to judge the state of illness of other organs. Since the blood vessel of the fundus is the only blood vessel that can be directly observed by the human body through the body surface, medical personnel can check whether the optic nerve, retina, choroid and refraction medium of the fundus have pathological changes through the confocal laser scanning imager, and can also assist in diagnosing and judging the disease conditions of other system diseases, such as detecting cerebral infarction, cerebral hemorrhage, cerebral arteriosclerosis, brain tumor, diabetes, nephropathy, hypertension, retinopathy of prematurity, glaucoma, age-related macular degeneration and the like through screening retinal photographs. The earlier these diseases are detected, the more beneficial the clinical treatment, so the confocal laser scanning imager is widely used for clinical screening of fundus diseases and becomes an indispensable medical instrument.

However, the existing confocal laser fundus imager can only acquire images with one resolution for a single scanning mode or a plurality of scanning modes, and the single resolution obviously cannot meet the requirements of the plurality of scanning modes.

In view of the above problems, it is desirable to provide a method for displaying a plurality of optical image resolutions to solve the above technical problems.

Disclosure of Invention

To achieve the above object, a first aspect of the present invention discloses a method for displaying a plurality of optical image resolutions, comprising at least the steps of:

after receiving the first instruction, the image receiving module sends a second instruction to the image acquisition module;

after receiving the second instruction, the image acquisition module drives the scanning galvanometer to scan according to a preset image resolution flag bit to obtain information of a scanned image;

the image processing module switches to a corresponding data transmission mode according to the image resolution flag bit;

the image transmission module transmits the information of the scanned image to the image receiving module, and the image receiving module receives the information of the scanned image and displays the scanned image into images with different resolutions.

As a preferred technical solution of the present invention, the first instruction is user start or system start.

As a preferable aspect of the present invention, the scanned image is a fundus image.

As a preferable aspect of the present invention, the data transmission mode is any one of a wired mode and a wireless mode.

In a preferred embodiment of the present invention, the image resolution flag is one or a combination of 512 ± 50, 1024 ± 100, 2048 ± 300, 3072 ± 500, and 4096 ± 500.

A second aspect of the present invention provides an apparatus for switching an optical scanning image resolution in real time, the apparatus comprising:

the image receiving module is used for sending a second instruction to the image acquisition module after receiving the first instruction;

the image acquisition module drives the scanning galvanometer to scan after receiving the second instruction so as to obtain a scanning image;

the image processing module is used for switching to a corresponding data transmission mode according to the image resolution flag bit;

the image transmission module transmits the scanned image to the image receiving module, and the image receiving module receives the scanned image and analyzes the scanned image into different resolution modes.

A third aspect of the present invention provides a confocal laser fundus scanner implementing the above method of switching the resolution of an optically scanned image in real time.

A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the above-described method of switching resolution of an optically scanned image in real time.

The present invention provides according to a fifth aspect a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above for switching resolution of an optically scanned image in real time when executing the computer program.

Compared with the prior art, the technical scheme of the invention can solve the problem that the field of ophthalmic medical instruments can only be suitable for single image resolution aiming at single application scene. The method for displaying multiple optical image resolutions can be applied to application scenes such as FA (fluorescein fundus angiography), AF (fundus autofluorescence angiography), ICGA (indocyanine green angiography), RF (blue light fundus imaging), IF (infrared fundus imaging), ICGA + FA mode, ICGA + IF mode, FA + AF mode and the like at the same time, each application scene may correspond to different image resolutions, for example, FFA corresponds to 1024 image resolution, and ICGA corresponds to 2048 image resolution.

Drawings

FIG. 1 is a flow diagram illustrating a method of multiple optical image resolutions.

Fig. 2 is a fundus image taken at 1024 resolution in the AF mode in one embodiment of the present invention.

Fig. 3 is a fundus image taken at 2048 resolution in the RF mode in one embodiment of the present invention.

Fig. 4 is a fundus image taken at 512 resolutions in the ICGA + FA mode in one embodiment of the present invention.

Detailed Description

In order to make the technical solution of the present invention clearer, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1, a first aspect of the present invention discloses a method for displaying a plurality of optical image resolutions, comprising at least the steps of:

after receiving the first instruction, the image receiving module sends a second instruction to the image acquisition module;

the term "first instruction" refers to an instruction sent by a user or a system to the image receiving module, the instruction is a start instruction, for example, different scan mode instructions can be selected by the user on the image receiving module, for example, scan mode instructions such as FA, AF, RF, ICGA, IF, ICGA + FA, ICGA + IF, FA + AF, etc. can be selected.

Wherein FA is fluorescein fundus angiography mode; AF is a fundus autofluorescence contrast mode; ICGA is indocyanine green angiography mode; RF is a blue light fundus imaging mode; IF is an infrared fundus imaging mode; ICGA + FA is a combined mode of indocyanine green angiography and fluorescein fundus angiography; ICGA + IF is a combined mode of indocyanine green angiography and infrared fundus imaging; FA + IF is a combined mode of fluorescein fundus angiography and infrared fundus imaging; FA + AF is a combined mode of fluorescein fundus angiography and fundus autofluorescence angiography.

The term "second instruction" means that after the image receiving module receives the first instruction, the instruction conversion may be performed on the first instruction, or the instruction conversion may be consistent with the first instruction. The first instruction and the second instruction are substantially the same, and both instructions are for selecting a scan mode such as FFA, AF, ICGA, and synchronous contrast.

After the image receiving module receives the first instruction, the first instruction can be converted into a second instruction, and the second instruction is sent to the image acquisition module.

In a preferred embodiment, the first instruction is user-initiated or system-initiated.

The user starts an instruction sent for the user to operate; the system start is an instruction sent by the system according to a certain program.

After receiving the second instruction, the image acquisition module drives the scanning galvanometer to scan according to a preset image resolution flag bit to obtain information of a scanned image;

after receiving the second instruction, the image acquisition module scans the measured object by driving the scanning galvanometer according to a preset image resolution flag bit to obtain information of a scanned image;

in a preferred embodiment of the invention, the object to be measured is an eye, although the invention is not limited to an eye.

In a preferred embodiment, the scanned image is a fundus image.

The preset image resolution flag bits can be set to 512 + -50, 1024 + -100, 2048 + -300, 3072 + -500, 4096 + -500, etc. The more the preset image resolution, the more the image resolution that can be displayed by the image receiving module is selected.

For example, before the object to be measured is scanned, resolution flag bits such as 512, 1024, 2048, 3072 can be selected in advance for scanning, and then a scanning image with corresponding resolution can be obtained.

The image processing module switches to a corresponding data transmission mode according to the image resolution flag bit;

the image processing module selects and switches to a data transmission mode matched with the image resolution flag bit according to the image resolution flag bit; the data transmission mode may be either wired transmission or wireless transmission.

Transmission using a wired communication method is called wired transmission, and transmission using a wireless communication method is called wireless transmission.

Common transmission media for wired transmission are: twisted pair, coaxial cable, fiber optics, etc.

The wired transmission mode can be an Ethernet mode, an ATM network, an FDDI network and the like.

Each image resolution flag bit corresponds to a corresponding data transmission mode, and the image processing module automatically matches the image resolution flag bit with the data transmission mode.

The image transmission module transmits the information of the scanned image to the image receiving module, and the image receiving module receives the information of the scanned image and displays the scanned image into images with different resolutions.

In a second aspect of the invention, there is disclosed an apparatus for displaying a plurality of optical image resolutions, comprising:

the image receiving module is used for sending a second instruction to the image acquisition module after receiving the first instruction;

the image acquisition module drives the scanning galvanometer to scan according to a preset image resolution flag bit after receiving the second instruction, so as to obtain information of a scanned image;

the image processing module is used for switching to a corresponding data transmission mode according to the image resolution flag bit;

and the image transmission module transmits the information of the scanned image to the image receiving module, and the image receiving module receives the information of the scanned image and displays the scanned image into images with different resolutions.

A third aspect of the invention provides a confocal laser scanning imager that implements the above method of displaying multiple optical image resolutions.

A fourth aspect of the invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described method of displaying a plurality of optical image resolutions.

According to a fifth aspect, the present invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the above-mentioned steps for a method of displaying a plurality of optical image resolutions when executing the computer program.

Compared with the prior art, the technical scheme of the invention can solve the problem that the field of ophthalmic medical instruments can only be suitable for single image resolution aiming at single application scene. The method for displaying multiple optical image resolutions can be applied to application scenes such as FA (fluorescein fundus angiography), AF (fundus autofluorescence angiography), ICGA (indocyanine green angiography), RF (blue light fundus imaging), IF (infrared fundus imaging), ICGA + FA mode, ICGA + IF mode, FA + AF mode and the like at the same time, each application scene may correspond to different image resolutions, for example, FFA corresponds to 1024 image resolution, and ICGA corresponds to 2048 image resolution.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.