OCTA area image acquisition method, device and equipment and readable storage medium

Abstract

The invention discloses an OCTA area image acquisition method, device and equipment and a readable storage medium, and relates to the technical field of scanning imaging. Comprises: acquiring an image acquisition demand; the image acquisition requirement comprises a total acquisition layer number and an acquisition repetition frequency, the total acquisition layer number is greater than the acquisition repetition frequency, and the total acquisition layer number is an integral multiple of the acquisition repetition frequency; according to an image acquisition requirement, acquiring first to Nth frames of images of the OCTA area from the first layer to the Nth layer; n is equal to collection repetition times; and according to an image acquisition demand, acquiring first to Nth frames of images of the OCTA region from the (N + 1) th layer to the 2Nth layer until the first to Nth frames of images corresponding to the total number of layers are acquired, and obtaining an acquired image of the OCTA region. According to the scheme, the accuracy and the acquisition efficiency of the OCTA area image are improved.

Description

Technical Field

[0001] The present invention relates to the field of scanning imaging technology, and in particular to an OCTA regional image acquisition method, device, equipment and readable storage medium. Background Art

[0002] Optical coherence tomography angiography (OCTA) is a non-invasive, high-resolution imaging technology based on optical coherence tomography (OCT) that enables three-dimensional imaging of the retinal vascular network. By detecting blood flow signals, OCTA can clearly display the microvascular structure of the retina and choroid without the injection of contrast agents, providing important imaging evidence for the diagnosis and treatment of ophthalmic diseases. Since the advent of OCTA technology, its application in the field of ophthalmology has rapidly expanded, becoming an important tool for diagnosing and monitoring retinal vascular diseases.

[0003] However, traditional OCTA imaging technology typically uses a sawtooth acquisition mode when acquiring images. Specifically, after acquiring the required number of frames (for example, 10 frames) in the first layer, it jumps to the next layer to acquire 10 frames of images, and until the 10 frames of images in the last layer are acquired, the image acquisition is completed. However, this image acquisition method has some limitations. For example, continuous image acquisition of each layer results in too small a difference between the acquired images and low contrast between images. In addition, this method takes a long time to acquire images, and the human eye will have eye movement and motion artifacts during acquisition, which will lead to inaccurate images, thereby affecting the accuracy and efficiency of blood flow signal detection. These problems may ultimately affect image clarity and diagnostic accuracy.

[0004] Therefore, there is an urgent need for an OCTA regional image acquisition method that can overcome the above problems. Summary of the Invention

[0005] The objective of the present invention is to provide a method, apparatus, device, and readable storage medium for acquiring OCTA regional images. The method first acquires the first to N frames of images of the OCTA region from the first layer to the Nth layer, then acquires the first to N frames of images of the OCTA region from the N+1th layer to the 2Nth layer, and so on until the first to N frames of images corresponding to the total number of layers are acquired. Since all frames of images are not acquired together at the same layer, there is a time interval between the acquisition of images of the same layer, which increases the contrast between different frames of images. In addition, since this solution requires frequent movement between different layers of the OCTA region, it is equivalent to increasing the utilization rate of the longitudinal galvanometer, which can effectively shorten the acquisition time of the OCTA regional images, reduce the problems of eye movement and motion artifacts in the human eye caused by excessive acquisition time, and increase the clarity of the acquired images.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a method for acquiring an OCTA regional image, the method comprising:

[0008] Obtain image acquisition requirements; image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions. The total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions.

[0009] According to the image acquisition requirements, the first to N frames of the OCTA area from the first layer to the Nth layer are acquired; N is equal to the number of acquisition repetitions;

[0010] According to the image acquisition requirements, the first to N frames of images of the OCTA area at the N+1th layer to the 2Nth layer are acquired until the first to N frames of images corresponding to the total number of acquisition layers are acquired to obtain the acquired images of the OCTA area.

[0011] In some embodiments, according to image acquisition requirements, acquiring first to N frames of images of the OCTA region in the first to Nth layers includes:

[0012] According to the image acquisition requirements, the first frame of the OCTA area from the first layer to the Nth layer is acquired;

[0013] The second frame image of the OCTA area from the first layer to the Nth layer is acquired until the Nth frame image of the first layer to the Nth layer is acquired.

[0014] In some embodiments, according to image acquisition requirements, acquiring the first frame image of the OCTA region from the first layer to the Nth layer includes:

[0015] According to the image acquisition requirements, the lateral galvanometer is controlled to move laterally in the first layer of the OCTA area to acquire the first frame image of the first layer of the OCTA area;

[0016] The longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire the first frame image of the OCTA area in the second layer until the acquisition of the first frame image of the Nth layer is completed.

[0017] In some embodiments, acquiring the second frame image of the OCTA region from the first layer to the Nth layer, until the Nth frame image of the first layer to the Nth layer is acquired, includes:

[0018] Control the longitudinal galvanometer to jump back to the first layer of the OCTA area, and control the transverse galvanometer to move laterally in the first layer of the OCTA area to acquire the second frame image of the first layer of the OCTA area;

[0019] The longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire the second frame image of the OCTA area in the second layer, until the Nth frame image of the Nth layer is acquired.

[0020] In some embodiments, according to image acquisition requirements, the first to N frames of images of the OCTA region at the N+1th layer to the 2Nth layer are acquired until the first to N frames of images corresponding to the total number of acquired layers are acquired, thereby obtaining acquired images of the OCTA region, including:

[0021] Control the longitudinal galvanometer to jump to the N+1 layer of the OCTA area, and control the transverse galvanometer to move laterally in the N+1 layer of the OCTA area to acquire the first frame image of the OCTA area in the N+1 layer;

[0022] Control the longitudinal galvanometer to jump to the N+2 layer of the OCTA area, and control the transverse galvanometer to move laterally in the N+2 layer of the OCTA area to acquire the first frame image of the OCTA area at the N+2 layer, until the first frame images of the N+1 layer to the 2N layer are acquired;

[0023] Control the longitudinal galvanometer to jump to the N+1th layer of the OCTA area again, and control the transverse galvanometer to move laterally in the N+1th layer of the OCTA area to acquire the second frame image of the OCTA area at the N+1th layer, until the Nth frame image from the N+1th layer to the 2Nth layer is acquired;

[0024] The acquisition is repeated until the Nth frame image corresponding to the total number of acquisition layers is completed, and the acquisition image of the OCTA area is obtained.

[0025] In some embodiments, the method further comprises:

[0026] Disease diagnosis is performed based on the acquired images of the OCTA area.

[0027] In a second aspect, the present invention further provides an OCTA regional image acquisition device, the device comprising:

[0028] The demand acquisition module is used to obtain image acquisition requirements; the image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions, the total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions;

[0029] The first acquisition module is used to acquire the first to N frames of images of the OCTA area from the first layer to the Nth layer according to the image acquisition requirements, where N is equal to the number of acquisition repetitions;

[0030] The second acquisition module is used to acquire the first to N frames of images of the OCTA area at the N+1th layer to the 2Nth layer according to the image acquisition requirements, until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining the acquired images of the OCTA area.

[0031] In a third aspect, the present invention further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for acquiring OCTA regional images provided in the first aspect is implemented.

[0032] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the OCTA regional image acquisition method provided in the first aspect.

[0033] In a fifth aspect, the present invention further provides a computer program product, comprising a computer program, which, when executed by a processor, implements the method for acquiring OCTA regional images provided in the first aspect.

[0034] The beneficial effects of the present invention are:

[0035] The method for acquiring OCTA regional images provided in the present invention first obtains image acquisition requirements; the image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions, the total number of acquisition layers being greater than the number of acquisition repetitions, and the total number of acquisition layers being an integer multiple of the number of acquisition repetitions; then, based on the image acquisition requirements, the first to N frames of images of the OCTA region from the first layer to the Nth layer are acquired, where N is equal to the number of acquisition repetitions; finally, based on the image acquisition requirements, the first to N frames of images of the OCTA region from the N+1th layer to the 2Nth layer are acquired, until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining an acquired image of the OCTA region. First, the first to N frames of OCTA images from the first to N layers are acquired, and then the first to N frames of OCTA images from the N+1 to 2N layers are acquired, and so on until the first to N frames of images corresponding to the total number of layers are acquired. Since all frames of images are not acquired together at the same layer, there is a time interval between the acquisition of images of the same layer, which increases the contrast between different frames. In addition, since this solution requires frequent movement between different layers of the OCTA area, it is equivalent to increasing the utilization rate of the longitudinal galvanometer, which can effectively shorten the acquisition time of OCTA area images, reduce the problems of eye movement and motion artifacts in the human eye caused by excessive acquisition time, and increase the clarity of the acquired images.

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of a flow chart of a method for acquiring OCTA regional images according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of an OCTA regional image acquisition process according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the relationship between an OCTA area and the movement directions of the longitudinal galvanometer and the transverse galvanometer according to an embodiment of the present invention;

[0040] Figure 4 Schematic diagram of a flow chart of another method for acquiring OCTA regional images according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic structural diagram of an OCTA regional image acquisition device according to an embodiment of the present invention;

[0042] Figure 6 Schematic diagram of another OCTA regional image acquisition device according to an embodiment of the present invention;

[0043] Figure 7 A schematic diagram of the structure of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that references to "one embodiment," "an embodiment," "an example embodiment," etc., in this specification indicate that the described embodiment may include specific features, structures, or characteristics. However, not every embodiment must include these specific features, structures, or characteristics. In addition, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is indicated that it is within the knowledge of those skilled in the art to incorporate such features, structures, or characteristics into other embodiments.

[0046] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] In some embodiments, as Figure 1 As shown, a flow chart of a method for acquiring OCTA regional images is provided, and the specific method includes:

[0048] S101: Obtain image acquisition requirements.

[0049] The image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions. The total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions.

[0050] Specifically, when image acquisition of the OCTA area is required, the user can set the total number of acquisition layers and the number of acquisition repetitions according to actual needs, upload them to the computer's storage system, and then directly obtain the total number of acquisition layers and the number of acquisition repetitions from the computer's storage system; or the relevant attribute parameters of the OCTA area can be input into a pre-trained acquisition requirement analysis model, and the acquisition requirement analysis model can output the total number of acquisition layers and the number of acquisition repetitions.

[0051] It should be noted that in order to ensure the quality of image acquisition, the total number of acquisition layers is usually much larger than the number of acquisition repetitions, and for the convenience of acquisition, the total number of acquisition layers is usually an integer multiple of the number of acquisition repetitions. For example, the total number of acquisition layers can be 512 layers, and the number of acquisition repetitions can be 4 times.

[0052] S102 : According to image acquisition requirements, first to N frames of images of the OCTA region in the first to Nth layers are acquired.

[0053] Where N is equal to the number of acquisition repetitions.

[0054] For example, when the total number of acquisition layers is 512 and the number of acquisition repetitions is 4, the first to fourth frames of images of the OCTA region at the first to fourth layers can be acquired first.

[0055] Optionally, according to image acquisition requirements, the method for acquiring the first to N frames of images of the OCTA area in the first to N layers may also be, according to image acquisition requirements, acquiring the first frame of images of the OCTA area in the first to N layers; acquiring the second frame of images of the OCTA area in the first to N layers, until the acquisition of the N frame of images from the first to N layers is completed.

[0056] Specifically, according to the image acquisition requirements, the transverse galvanometer is controlled to move laterally in the first layer of the OCTA area to acquire the first frame image of the OCTA area in the first layer; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire the first frame image of the OCTA area in the second layer, until the acquisition of the first frame image of the Nth layer is completed; the longitudinal galvanometer is controlled to jump back to the first layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the first layer of the OCTA area to acquire the second frame image of the OCTA area in the first layer; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire the second frame image of the OCTA area in the second layer, until the acquisition of the Nth frame image of the Nth layer is completed.

[0057] For example, still taking the total number of acquisition layers as 512 layers and the number of acquisition repetitions as 4 as an example, the transverse galvanometer is controlled to move laterally in the first layer of the OCTA area, and the first frame image of the OCTA area in the first layer is acquired; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area, and the first frame image of the OCTA area in the second layer is acquired; the longitudinal galvanometer is controlled to jump to the third layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the third layer of the OCTA area, and the first frame image of the OCTA area in the third layer is acquired; the longitudinal galvanometer is controlled to jump to the fourth layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the fourth layer of the OCTA area, and the first frame image of the OCTA area in the fourth layer is acquired. The longitudinal galvanometer is controlled to jump back to the first layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the first layer of the OCTA region to acquire the second frame image of the OCTA region on the first layer; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA region to acquire the second frame image of the OCTA region on the second layer; the longitudinal galvanometer is controlled to jump to the third layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the third layer of the OCTA region to acquire the second frame image of the OCTA region on the third layer; the longitudinal galvanometer is controlled to jump to the fourth layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the fourth layer of the OCTA region to acquire the second frame image of the OCTA region on the fourth layer. This process is repeated until the first to fourth frames of images from the first to fourth layers are acquired.

[0058] It should be noted that the process of controlling the lateral movement of the lateral galvanometer is specifically to control the lateral galvanometer to move from the leftmost end of the OCTA area to the rightmost end of the OCTA area.

[0059] S103 , according to image acquisition requirements, acquiring the first to N frames of images of the OCTA region at the N+1th layer to the 2Nth layer, until the first to N frames of images corresponding to the total number of layers are acquired, to obtain an acquired image of the OCTA region.

[0060] For example, when the total number of acquisition layers is 512 and the acquisition is repeated 4 times, the 1st to 4th frame images of the OCTA area at the 5th to 8th layers can be acquired next, and then the 1st to 4th frame images of the OCTA area at the 9th to 12th layers can be acquired, and so on, until the 1st to 4th frame images of the OCTA area at the 509th to 512th layers are acquired, that is, all image acquisition is completed and the acquired images of the OCTA area are obtained.

[0061] Specifically, according to the image acquisition requirements, the first to N frames of images of the OCTA area at the N+1 layer to the 2N layer are acquired, and the first to N frames of images corresponding to the total number of layers are acquired. The method for obtaining the acquired images of the OCTA area is specifically as follows: controlling the longitudinal galvanometer to jump to the N+1 layer of the OCTA area, and controlling the transverse galvanometer to move transversely at the N+1 layer of the OCTA area, to acquire the first frame of the OCTA area at the N+1 layer; controlling the longitudinal galvanometer to jump to the N+2 layer of the OCTA area, and controlling the transverse galvanometer to move transversely at the N+1 layer of the OCTA area The N+2 layer is moved laterally to acquire the first frame image of the OCTA area at the N+2 layer, until the first frame images of the N+1 to 2N layers are acquired; the longitudinal galvanometer is controlled to jump to the N+1 layer of the OCTA area again, and the transverse galvanometer is controlled to move laterally at the N+1 layer of the OCTA area to acquire the second frame image of the OCTA area at the N+1 layer, until the N frame images of the N+1 to 2N layers are acquired; the acquisition is repeated until the N frame image corresponding to the total number of acquisition layers is acquired, and the acquired image of the OCTA area is obtained.

[0062] For example, still taking the total number of acquisition layers as 512 layers and the number of acquisition repetitions as 4 as an example, the transverse galvanometer is controlled to move laterally in the 5th layer of the OCTA area, and the first frame image of the OCTA area on the 5th layer is acquired; the longitudinal galvanometer is controlled to jump to the 6th layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the 6th layer of the OCTA area, and the first frame image of the OCTA area on the 6th layer is acquired; the longitudinal galvanometer is controlled to jump to the 7th layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the 7th layer of the OCTA area, and the first frame image of the OCTA area on the 7th layer is acquired; the longitudinal galvanometer is controlled to jump to the 8th layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the 8th layer of the OCTA area, and the first frame image of the OCTA area on the 8th layer is acquired. The longitudinal galvanometer is controlled to jump back to the 5th layer of the OCTA area, and the transverse galvanometer is controlled to move transversely in the 5th layer of the OCTA area to acquire the second frame of the OCTA area on the 5th layer. The longitudinal galvanometer is controlled to jump to the 6th layer of the OCTA area, and the transverse galvanometer is controlled to move transversely in the 6th layer of the OCTA area to acquire the second frame of the OCTA area on the 6th layer. The longitudinal galvanometer is controlled to jump to the 7th layer of the OCTA area, and the transverse galvanometer is controlled to move transversely in the 7th layer of the OCTA area to acquire the second frame of the OCTA area on the 7th layer. The longitudinal galvanometer is controlled to jump to the 8th layer of the OCTA area, and the transverse galvanometer is controlled to move transversely in the 8th layer of the OCTA area to acquire the 8th frame of the OCTA area on the 4th layer. This process is repeated until the acquisition of the first to fourth frames of the 5th to 8th layers is completed. The next step is to acquire the 1st to 4th frames of images from the 9th to the 12th layers. The above process is repeated until the 1st to 4th frames of images of the OCTA area from the 509th to the 512th layers are completed. That is, all image acquisition is completed and the acquired images of the OCTA area are obtained.

[0063] Optionally, after obtaining the captured images of the OCTA area, disease diagnosis can be performed based on the captured images of the OCTA area. The diagnostic method can be to input the captured images of the OCTA area into a trained disease diagnosis model, and the disease diagnosis model can output the disease diagnosis result. It can also be to output the captured images of the OCTA area through a display so that doctors can diagnose the disease through the captured images of the OCTA area.

[0064] The method for acquiring OCTA regional images provided in this embodiment first obtains an image acquisition requirement; the image acquisition requirement includes the total number of acquisition layers and the number of acquisition repetitions, where the total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions; then, based on the image acquisition requirement, the first to N frames of images of the OCTA region from the first layer to the Nth layer are acquired, where N is equal to the number of acquisition repetitions; finally, based on the image acquisition requirement, the first to N frames of images of the OCTA region from the N+1th layer to the 2Nth layer are acquired, until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining an acquired image of the OCTA region. First, the first to N frames of OCTA images from the first to N layers are acquired, and then the first to N frames of OCTA images from the N+1 to 2N layers are acquired, and so on until the first to N frames of images corresponding to the total number of layers are acquired. Since all frames of images are not acquired together at the same layer, there is a time interval between the acquisition of images of the same layer, which increases the contrast between different frames. In addition, since this solution requires frequent movement between different layers of the OCTA area, it is equivalent to increasing the utilization rate of the longitudinal galvanometer, which can effectively shorten the acquisition time of OCTA area images, reduce the problems of eye movement and motion artifacts in the human eye caused by excessive acquisition time, and increase the clarity of the acquired images.

[0065] Optional, such as Figure 2 Figure 2 shows the acquisition process of an OCTA regional image when the total number of acquisition slices is 512 and the number of acquisition repetitions is 4. The process of acquiring the first frame of the first slice to the first frame of the first slice is called a single skip acquisition; repeating the single skip acquisition from the second frame of the first slice to the fourth frame of the fourth slice is called a single repeat acquisition; and repeating the single repeat acquisition until the fourth frame of the 512th slice is completed is called a full acquisition.

[0066] Optional, such as Figure 3 FIG. 1 shows a schematic diagram of the relationship between the OCTA area and the movement directions of the longitudinal galvanometer and the transverse galvanometer, wherein the movement directions of the transverse galvanometer and the longitudinal galvanometer are perpendicular to each other.

[0067] In order to more comprehensively demonstrate this solution, this embodiment provides an optional method for acquiring OCTA regional images, such as Figure 4 As shown:

[0068] S201, obtaining image acquisition requirements.

[0069] The image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions. The total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions.

[0070] S202 , according to image acquisition requirements, controlling the transverse galvanometer to move transversely in the first layer of the OCTA area to acquire a first frame image of the first layer of the OCTA area.

[0071] S203 , controlling the longitudinal galvanometer to jump to the second layer of the OCTA area, and controlling the transverse galvanometer to move transversely in the second layer of the OCTA area, to acquire the first frame image of the second layer of the OCTA area, until the acquisition of the first frame image of the Nth layer is completed.

[0072] Where N is equal to the number of acquisition repetitions.

[0073] S204 , controlling the longitudinal galvanometer to jump back to the first layer of the OCTA area, and controlling the transverse galvanometer to move transversely in the first layer of the OCTA area, to acquire a second frame image of the OCTA area in the first layer.

[0074] S205 , controlling the longitudinal galvanometer to jump to the second layer of the OCTA area, and controlling the transverse galvanometer to move transversely in the second layer of the OCTA area, to acquire a second frame image of the second layer of the OCTA area, until the Nth frame image of the Nth layer is acquired.

[0075] S206 , controlling the longitudinal galvanometer to jump to the N+1 layer of the OCTA area, and controlling the transverse galvanometer to move transversely in the N+1 layer of the OCTA area, to acquire the first frame image of the OCTA area in the N+1 layer.

[0076] S207: Control the longitudinal galvanometer to jump to the N+2 layer of the OCTA area, and control the transverse galvanometer to move laterally in the N+2 layer of the OCTA area to acquire the first frame image of the OCTA area in the N+2 layer, until the first frame images of the N+1 layer to the 2N layer are acquired.

[0077] S208, controlling the longitudinal galvanometer to jump again to the N+1 layer of the OCTA area, and controlling the transverse galvanometer to move laterally in the N+1 layer of the OCTA area, to acquire the second frame image of the OCTA area at the N+1 layer, until the N-frame images from the N+1 layer to the 2N layer are acquired.

[0078] S209 , repeatedly performing acquisition until the Nth frame of image corresponding to the total number of acquisition layers is acquired, thereby obtaining an acquired image of the OCTA region.

[0079] S210 , performing disease diagnosis based on the acquired images of the OCTA region.

[0080] The specific process of the above S201-S210 can be found in the description of the above method embodiment. The implementation principle and technical effects are similar and will not be repeated here.

[0081] Based on the same inventive concept, embodiments of the present application also provide an OCTA regional image acquisition device for implementing the aforementioned OCTA regional image acquisition method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of the one or more OCTA regional image acquisition device embodiments provided below can be found in the aforementioned limitations of the OCTA regional image acquisition method and are not further elaborated here.

[0082] In one embodiment, Figure 5 As shown, a device for acquiring OCTA regional images is provided, the device comprising:

[0083] The demand acquisition module 30 is used to obtain image acquisition requirements; the image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions, the total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions;

[0084] The first acquisition module 31 is used to acquire the first to N frames of images of the OCTA area from the first layer to the Nth layer according to image acquisition requirements, where N is equal to the number of acquisition repetitions;

[0085] The second acquisition module 32 is used to acquire the first to N frames of images of the OCTA area at the N+1th layer to the 2Nth layer according to the image acquisition requirements, until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining the acquired images of the OCTA area.

[0086] In another embodiment, Figure 6 As shown above Figure 5 The first acquisition module 31 in the embodiment includes:

[0087] The first acquisition unit 310 is configured to acquire the first frame image of the OCTA region from the first layer to the Nth layer according to image acquisition requirements;

[0088] The second acquisition unit 311 is configured to acquire the second frame image of the OCTA region from the first layer to the Nth layer, until the Nth frame image of the first layer to the Nth layer is acquired.

[0089] In another embodiment, the above Figure 6 The first acquisition unit 310 is specifically used to: according to image acquisition requirements, control the transverse galvanometer to move laterally in the first layer of the OCTA area to acquire the first frame image of the OCTA area in the first layer; control the longitudinal galvanometer to jump to the second layer of the OCTA area, and control the transverse galvanometer to move laterally in the second layer of the OCTA area to acquire the first frame image of the OCTA area in the second layer, until the acquisition of the first frame image of the Nth layer is completed.

[0090] In another embodiment, the above Figure 6The second acquisition unit 311 is specifically used to: control the longitudinal galvanometer to jump back to the first layer of the OCTA area, and control the transverse galvanometer to move laterally in the first layer of the OCTA area to acquire the second frame image of the OCTA area in the first layer; control the longitudinal galvanometer to jump to the second layer of the OCTA area, and control the transverse galvanometer to move laterally in the second layer of the OCTA area to acquire the second frame image of the OCTA area in the second layer, until the Nth frame image of the Nth layer is acquired.

[0091] In another embodiment, the above Figure 5 The second acquisition unit 311 is specifically used to: control the longitudinal galvanometer to jump to the N+1th layer of the OCTA area, and control the transverse galvanometer to move transversely in the N+1th layer of the OCTA area, and acquire the first frame image of the OCTA area at the N+1th layer; control the longitudinal galvanometer to jump to the N+2th layer of the OCTA area, and control the transverse galvanometer to move transversely in the N+2th layer of the OCTA area, and acquire the first frame image of the OCTA area at the N+2th layer, until the first frame images of the N+1th layer to the 2Nth layer are acquired; control the longitudinal galvanometer to jump to the N+1th layer of the OCTA area again, and control the transverse galvanometer to move transversely in the N+1th layer of the OCTA area, and acquire the second frame image of the OCTA area at the N+1th layer, until the Nth frame image of the N+1th layer to the 2Nth layer is acquired; repeat the acquisition until the Nth frame image corresponding to the total number of acquisition layers is acquired, and obtain the acquired image of the OCTA area.

[0092] In another embodiment, the above Figure 5 The OCTA region image acquisition device is further used to: perform disease diagnosis based on the acquired images of the OCTA region.

[0093] The present application also provides an electronic device, in some embodiments, referring to Figure 7 As shown, electronic device 700 includes an input unit 710, a memory 720, a processor 730, and an output unit 740. The memory 720 stores program instructions that can be executed by the processor 730. The processor 730 invokes the program instructions to execute the OCTA regional image acquisition method and / or technical solution based on the aforementioned embodiments. The electronic device 700 can be a mobile terminal device such as a mobile phone or a computer.

[0094] In addition, embodiments of the present application further provide a computer-readable storage medium for storing a computer program for executing the method for acquiring OCTA regional images. For example, computer program instructions, when executed by a computer, can invoke or provide the method and / or technical solution according to the present application through the operation of the computer. The program instructions for invoking the method of the present application may be stored in a fixed or removable storage medium, and / or transmitted via a data stream in a broadcast or other signal-carrying medium, and / or stored in a storage medium that executes according to the program instructions.

[0095] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be implemented using a general-purpose computing device. They can be concentrated on a single computing device or distributed across a network consisting of multiple computing devices. Alternatively, they can be implemented using program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0096] The various technical features of the above embodiments can be arbitrarily integrated. To make the description concise, not all possible integrations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the integration of these technical features, they should be considered to be within the scope of this specification.

[0097] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A method for acquiring OCTA regional images, characterized in that: The method comprises: Obtaining image acquisition requirements; the image acquisition requirements include a total number of acquisition layers and a number of acquisition repetitions, the total number of acquisition layers being greater than the number of acquisition repetitions, and the total number of acquisition layers being an integer multiple of the number of acquisition repetitions; According to the image acquisition requirements, the first to N frames of images of the OCTA area from the first layer to the Nth layer are acquired, where N is equal to the number of acquisition repetitions; According to the image acquisition requirements, the first to N frames of images of the OCTA area at the N+1th layer to the 2Nth layer are acquired until the first to N frames of images corresponding to the total number of acquisition layers are acquired to obtain the acquired images of the OCTA area.

2. The method for acquiring OCTA regional images according to claim 1, wherein: According to the image acquisition requirement, acquiring the first to N frames of images of the OCTA region in the first to Nth layers includes: According to the image acquisition requirements, the first frame images of the OCTA area from the first layer to the Nth layer are acquired; The second frame image of the OCTA area from the first layer to the Nth layer is acquired until the Nth frame image of the first layer to the Nth layer is acquired.

3. The method for acquiring OCTA regional images according to claim 2, wherein: According to the image acquisition requirements, the first frame image of the OCTA area from the first layer to the Nth layer is acquired, including: According to the image acquisition requirements, controlling the transverse galvanometer to move laterally in the first layer of the OCTA area to acquire a first frame image of the first layer of the OCTA area; The longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire the first frame image of the OCTA area in the second layer until the acquisition of the first frame image of the Nth layer is completed.

4. The method for acquiring OCTA regional images according to claim 3, wherein: Acquire the second frame of the OCTA image from the first layer to the Nth layer, until the Nth frame of the image from the first layer to the Nth layer is acquired, including: Controlling the longitudinal galvanometer to jump back to the first layer of the OCTA area, and controlling the transverse galvanometer to move laterally in the first layer of the OCTA area, to acquire a second frame image of the first layer of the OCTA area; The longitudinal galvanometer is controlled to jump to the second layer of the OCTA area, and the transverse galvanometer is controlled to move laterally in the second layer of the OCTA area to acquire a second frame image of the OCTA area in the second layer, until the Nth frame image of the Nth layer is acquired.

5. The method for acquiring OCTA regional images according to claim 4, wherein: According to the image acquisition requirement, the first to N frames of images of the OCTA region at the N+1th layer to the 2Nth layer are acquired until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining acquired images of the OCTA region, including: Controlling the longitudinal galvanometer to jump to the N+1 layer of the OCTA area, and controlling the transverse galvanometer to move transversely in the N+1 layer of the OCTA area, to acquire a first frame image of the OCTA area in the N+1 layer; Controlling the longitudinal galvanometer to jump to the N+2 layer of the OCTA area, and controlling the transverse galvanometer to move laterally in the N+2 layer of the OCTA area, to acquire the first frame image of the OCTA area at the N+2 layer, until the first frame images of the N+1 layer to the 2N layer are acquired; Controlling the longitudinal galvanometer to jump again to the N+1th layer of the OCTA area, and controlling the transverse galvanometer to move laterally in the N+1th layer of the OCTA area, to acquire a second frame image of the OCTA area at the N+1th layer, until the Nth frame image from the N+1th layer to the 2Nth layer is acquired; The acquisition is repeated until the Nth frame image corresponding to the total number of acquisition layers is completed, and the acquisition image of the OCTA area is obtained.

6. The method for acquiring OCTA regional images according to any one of claims 1 to 5, characterized in that: The method further comprises: Disease diagnosis is performed based on the acquired images of the OCTA area.

7. An OCTA regional image acquisition device, characterized in that: The device comprises: A demand acquisition module is used to obtain image acquisition requirements; the image acquisition requirements include a total number of acquisition layers and a number of acquisition repetitions, the total number of acquisition layers is greater than the number of acquisition repetitions, and the total number of acquisition layers is an integer multiple of the number of acquisition repetitions; A first acquisition module is configured to acquire first to N frames of images of the OCTA region from the first layer to the Nth layer according to the image acquisition requirement, wherein N is equal to the number of acquisition repetitions; The second acquisition module is used to acquire the first to N frames of images of the OCTA area at the N+1th layer to the 2Nth layer according to the image acquisition requirement, until the first to N frames of images corresponding to the total number of acquisition layers are acquired, thereby obtaining an acquired image of the OCTA area.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for acquiring an OCTA regional image according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for acquiring an OCTA regional image according to any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for acquiring an OCTA regional image according to any one of claims 1 to 6 is implemented.

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