An OCTA regional image acquisition method, device, equipment and readable storage medium
By using a discontinuous layer acquisition method, the problems of low image contrast and long acquisition time in OCTA imaging technology are solved, resulting in clearer and more accurate image acquisition, reducing human eye motion artifacts, and improving the efficiency of image acquisition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU MICROCLEAR MEDICAL INSTR
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional OCTA imaging technology suffers from low image contrast, long acquisition time, and human eye motion artifacts during image acquisition, which affect image clarity and diagnostic accuracy.
A discontinuous layer acquisition method is adopted. First, the first to N frames of images are acquired from the first to the Nth layer, and then the first to N frames of images are acquired from the N+1th to the 2Nth layer. The time interval is increased and the longitudinal galvanometer is moved frequently to reduce the acquisition time of the same layer, improve the contrast and shorten the acquisition time.
It improves the clarity of OCTA region images, reduces human eye motion artifacts, and enhances the accuracy and efficiency of image acquisition.
Smart Images
Figure CN120531334B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of scanning imaging technology, and more specifically to a method, apparatus, device, and readable storage medium for acquiring OCTA area images. Background Technology
[0002] Optical coherence tomography (OCTA) is a non-invasive, high-resolution imaging technique 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 need for contrast agents, providing crucial imaging evidence for the diagnosis and treatment of ophthalmic diseases. Since its advent, the application of OCTA in ophthalmology has rapidly expanded, becoming an important tool for diagnosing and monitoring retinal vascular diseases.
[0003] However, traditional OCTA imaging technology typically employs a sawtooth wave acquisition mode during image acquisition. Specifically, after acquiring the required number of frames (e.g., 10 frames) in the first layer, it skips to the next layer and acquires 10 frames, continuing until the last layer's 10 frames are acquired, thus completing the image acquisition. However, this image acquisition method has some limitations. For example, continuous image acquisition of each layer results in small differences between the acquired images, leading to low contrast. Furthermore, this method has a long acquisition time, and eye movement and motion artifacts can occur during acquisition, causing inaccurate images and 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 region image acquisition method that can overcome the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a method, apparatus, device, and readable storage medium for acquiring OCTA region images. The method involves first acquiring the first to N frames of the OCTA region from the first to the Nth layer, then acquiring the first to N frames of the OCTA region from the (N+1)th to the 2Nth layer, and so on, until all the first to N frames corresponding to the total number of layers have been acquired. Because all frames are not acquired simultaneously on the same layer, there is a time interval between acquisitions of images on the same layer, increasing the contrast between different frames. Furthermore, since this solution requires frequent movement between different layers in the OCTA region, it effectively increases the utilization rate of the longitudinal galvanometer, thereby shortening the acquisition time of the OCTA region images, reducing eye movement and motion artifacts caused by excessive acquisition time, and increasing the clarity of the acquired images.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] In a first aspect, the present invention provides a method for acquiring OCTA region images, 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 must be greater than the number of acquisition repetitions, and the total number of acquisition layers must be an integer multiple of the number of acquisition repetitions.
[0009] Based on the image acquisition requirements, the first to N frames of images of the OCTA region are acquired from the first to the Nth layers; N equals the number of acquisition repetitions.
[0010] Based on the image acquisition requirements, the first to N frames of the OCTA region are acquired from layers N+1 to 2N until the first to N frames of the total number of layers are acquired, thus obtaining the acquired image of the OCTA region.
[0011] In some embodiments, according to image acquisition requirements, the first to N frames of images of the OCTA region in the first to Nth layers are acquired, including:
[0012] Based on the image acquisition requirements, the first frame image of the OCTA region from the first layer to the Nth layer is acquired;
[0013] 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.
[0014] In some embodiments, according to image acquisition requirements, the first frame image of the OCTA region from the first layer to the Nth layer is acquired, including:
[0015] Based on the image acquisition requirements, control the lateral galvanometer to move laterally in the first layer of the OCTA region, and acquire the first frame image of the OCTA region in the first layer.
[0016] Control the longitudinal galvanometer to jump to the second layer of the OCTA region, and control the transverse galvanometer to move laterally in the second layer of the OCTA region to acquire the first frame image of the OCTA region 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 region, and control the transverse galvanometer to move laterally in the first layer of the OCTA region to acquire the second frame image of the OCTA region in the first layer.
[0019] Control the longitudinal galvanometer to jump to the second layer of the OCTA region, and control the transverse galvanometer to move laterally in the second layer of the OCTA region to acquire the second frame image of the OCTA region 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 layers N+1 to 2N are acquired until the first to N frames corresponding to the total number of acquired layers are completed, thus obtaining the acquired image of the OCTA region, including:
[0021] Control the longitudinal galvanometer to jump to the N+1 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+1 layer of the OCTA region, and acquire the first frame image of the OCTA region in the N+1 layer;
[0022] Control the longitudinal galvanometer to jump to the N+2 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+2 layer of the OCTA region to acquire the first frame image of the OCTA region in the N+2 layer, until the first frame image of the N+1 to 2N layers is acquired.
[0023] Control the longitudinal galvanometer to jump back to the N+1 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+1 layer of the OCTA region to acquire the second frame image of the OCTA region in the N+1 layer, until the Nth frame image from the N+1 layer to the 2Nth layer is acquired;
[0024] Repeat the acquisition process until the Nth frame image corresponding to the total number of acquisition layers is completed, thus obtaining the acquired image of the OCTA region.
[0025] In some embodiments, the method further includes:
[0026] Disease diagnosis based on images acquired in the OCTA region.
[0027] Secondly, the present invention also provides an OCTA region image acquisition device, the device comprising:
[0028] The requirement acquisition module is used to acquire 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 region from the first to the Nth layer according to the image acquisition requirements; N equals the number of acquisition repetitions.
[0030] The second acquisition module is used to acquire the first to N frames of images of the OCTA region from layer N+1 to layer 2N according to the image acquisition requirements, until the first to N frames of images corresponding to the total number of acquisition layers are completed, and thus the acquired image of the OCTA region is obtained.
[0031] Thirdly, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the OCTA region image acquisition method provided in the first aspect.
[0032] Fourthly, the present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the OCTA region image acquisition method provided in the first aspect.
[0033] Fifthly, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the OCTA region image acquisition method provided in the first aspect.
[0034] The beneficial effects of this invention are as follows:
[0035] The OCTA region image acquisition method provided in this invention first obtains the image acquisition requirements, which 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 is an integer multiple of the number of acquisition repetitions. Then, according to the image acquisition requirements, the first to N frames of the OCTA region are acquired from the first to the Nth layer, where N equals the number of acquisition repetitions. Finally, according to the image acquisition requirements, the first to N frames of the OCTA region from the (N+1)th to the 2Nth layer are acquired until the first to N frames corresponding to the total number of acquisition layers are acquired, thus obtaining the acquired image of the OCTA region. First, the first to N frames of the OCTA region are acquired from the first to the Nth layer. Then, the first to N frames of the OCTA region from the (N+1)th to the 2Nth layer are acquired, and so on, until the first to N frames of the total number of layers are acquired. Since all frames are not acquired at the same layer, there is a time interval between the acquisition of images at the same layer, which increases the contrast between different frames. In addition, since this scheme requires frequent movement between different layers in 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 region images, reduce the problem of eye movement and motion artifacts caused by excessive acquisition time, and increase the clarity of the acquired images.
[0036] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0037] Figure 1 This is a flowchart illustrating an OCTA region image acquisition method according to an embodiment of the present invention;
[0038] Figure 2 This is a schematic diagram illustrating the acquisition process of an OCTA region image according to an embodiment of the present invention;
[0039] Figure 3 This is a schematic diagram illustrating the relationship between the OCTA region and the movement directions of the longitudinal and transverse galvanometers, according to an embodiment of the present invention.
[0040] Figure 4 This is a flowchart illustrating another method for acquiring OCTA region images according to an embodiment of the present invention;
[0041] Figure 5 This is a schematic diagram of the structure of an OCTA region image acquisition device according to an embodiment of the present invention;
[0042] Figure 6 This is a schematic diagram of another OCTA region image acquisition device according to an embodiment of the present invention;
[0043] Figure 7 This is a schematic diagram of an electronic device structure provided in an embodiment of this application. Detailed Implementation
[0044] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0045] It should be noted that references to "an embodiment," "embodiment," "example embodiment," etc., in this specification refer to the described embodiment including specific features, structures, or characteristics; however, not every embodiment must include these specific features, structures, or characteristics. Furthermore, such expressions do not refer to the same embodiment. Moreover, when describing specific features, structures, or characteristics in conjunction with embodiments, whether or not explicitly described, it is indicated that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.
[0046] Furthermore, 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, such as Figure 1 The diagram illustrates a flowchart of an OCTA region image acquisition method, which includes the following specific steps:
[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 it is necessary to acquire images of the OCTA region, users can set the total number of acquisition layers and the number of acquisition repetitions according to actual needs, and upload them to the computer's storage system. Then, the total number of acquisition layers and the number of acquisition repetitions can be retrieved directly from the computer's storage system. Alternatively, the relevant attribute parameters of the OCTA region can be input into a pre-trained acquisition requirement analysis model, which can then 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 layers acquired is usually much greater than the number of acquisition repetitions. In addition, for the convenience of acquisition, the total number of layers acquired is usually an integer multiple of the number of acquisition repetitions. For example, the total number of layers acquired can be 512, and the number of acquisition repetitions can be 4.
[0052] S102, according to the image acquisition requirements, acquire the first to N frames of images of the OCTA region from the first layer to the Nth layer.
[0053] Where N equals the number of times the data is collected repeatedly.
[0054] For example, when the total number of layers is 512 and the number of acquisition repetitions is 4, the OCTA region can first acquire the first to fourth frames of images from the first to the fourth layers.
[0055] Optionally, depending on the image acquisition requirements, the method for acquiring the first to Nth frames of the OCTA region in the first to Nth layers can also be as follows: depending on the image acquisition requirements, acquire the first frame of the OCTA region in the first to Nth layers; acquire the second frame of the OCTA region in the first to Nth layers, until the Nth frame of the first to Nth layers is acquired.
[0056] Specifically, based on image acquisition requirements, the lateral galvanometer is controlled to move laterally within the first layer of the OCTA region to acquire the first frame image of the OCTA region in the first layer; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA region, and the lateral galvanometer is controlled to move laterally within the second layer of the OCTA region to acquire the first frame image of the OCTA region 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 region, and the lateral galvanometer is controlled to move laterally within the first layer of the OCTA region to acquire the second frame image of the OCTA region in the first layer; the longitudinal galvanometer is controlled to jump to the second layer of the OCTA region, and the lateral galvanometer is controlled to move laterally within the second layer of the OCTA region to acquire the second frame image of the OCTA region in the second layer, until the acquisition of the Nth frame image of the Nth layer is completed.
[0057] For example, taking a total of 512 layers and 4 repetitions as an example, the horizontal galvanometer is controlled to move horizontally in the first layer of the OCTA region to acquire the first frame image of the OCTA region in the first layer; the vertical galvanometer is controlled to jump to the second layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the second layer of the OCTA region to acquire the first frame image of the OCTA region in the second layer; the vertical galvanometer is controlled to jump to the third layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the third layer of the OCTA region to acquire the first frame image of the OCTA region in the third layer; the vertical galvanometer is controlled to jump to the fourth layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the fourth layer of the OCTA region to acquire the first frame image of the OCTA region in the fourth layer. The longitudinal galvanometer is controlled to jump back to layer 1 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 1 of the OCTA region, acquiring the second frame image of the OCTA region in layer 1. The longitudinal galvanometer is then controlled to jump to layer 2 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 2 of the OCTA region, acquiring the second frame image of the OCTA region in layer 2. The longitudinal galvanometer is then controlled to jump to layer 3 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 3 of the OCTA region, acquiring the second frame image of the OCTA region in layer 3. The longitudinal galvanometer is then controlled to jump to layer 4 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 4 of the OCTA region, acquiring the second frame image of the OCTA region in layer 4. This process is repeated until all frames from layer 1 to layer 4 have been acquired.
[0058] It should be noted that the process of controlling the lateral movement of the transverse galvanometer specifically involves controlling the transverse galvanometer to move from the leftmost end of the OCTA region to the rightmost end of the OCTA region.
[0059] S103, according to the image acquisition requirements, acquire the first to N frames of the OCTA region from layer N+1 to layer 2N, until the first to N frames of the total number of acquisition layers are completed, and the acquired image of the OCTA region is obtained.
[0060] For example, when the total number of layers acquired is 512 and the acquisition is repeated 4 times, the first to fourth frames of the OCTA region in layers 5 to 8 can be acquired next, followed by the first to fourth frames of the OCTA region in layers 9 to 12, and so on, until the first to fourth frames of the OCTA region in layers 509 to 512 are acquired, thus completing all image acquisition and obtaining the acquired image of the OCTA region.
[0061] Specifically, based on image acquisition requirements, the method for acquiring the first to N frames of images in the OCTA region from layer N+1 to layer 2N is as follows: The longitudinal galvanometer is controlled to jump to layer N+1 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer N+1 of the OCTA region, acquiring the first frame of the OCTA region at layer N+1; the longitudinal galvanometer is then controlled to jump to layer N+2 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer N+1 of the OCTA region, acquiring the first frame of the OCTA region at layer N+1; the longitudinal galvanometer is then controlled to jump to layer N+2 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer N+2 of the OCTA region. The system moves laterally at layer N+2 to acquire the first frame image of the OCTA region at layer N+2, until the first frame images of layers N+1 to 2N are acquired. The system then controls the longitudinal galvanometer to jump back to layer N+1 of the OCTA region and controls the transverse galvanometer to move laterally at layer N+1 of the OCTA region to acquire the second frame image of the OCTA region at layer N+1, until the Nth frame image of layers N+1 to 2N is acquired. This acquisition process is repeated until the Nth frame image corresponding to the total number of acquired layers is acquired, thus obtaining the acquired image of the OCTA region.
[0062] For example, taking a total of 512 layers and 4 repetitions as an example, the horizontal galvanometer is controlled to move horizontally in the 5th layer of the OCTA region to acquire the first frame image of the OCTA region in the 5th layer; the vertical galvanometer is controlled to jump to the 6th layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the 6th layer of the OCTA region to acquire the first frame image of the OCTA region in the 6th layer; the vertical galvanometer is controlled to jump to the 7th layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the 7th layer of the OCTA region to acquire the first frame image of the OCTA region in the 7th layer; the vertical galvanometer is controlled to jump to the 8th layer of the OCTA region, and the horizontal galvanometer is controlled to move horizontally in the 8th layer of the OCTA region to acquire the first frame image of the OCTA region in the 8th layer. The longitudinal galvanometer is controlled to jump back to layer 5 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 5 of the OCTA region, acquiring the second frame image of the OCTA region at layer 5. The longitudinal galvanometer is then controlled to jump to layer 6 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 6 of the OCTA region, acquiring the second frame image of the OCTA region at layer 6. The longitudinal galvanometer is then controlled to jump to layer 7 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 7 of the OCTA region, acquiring the second frame image of the OCTA region at layer 7. The longitudinal galvanometer is then controlled to jump to layer 8 of the OCTA region, and the transverse galvanometer is controlled to move laterally within layer 8 of the OCTA region, acquiring the eighth frame image of the OCTA region at layer 4. This process is repeated until the first to fourth frames of images from layers 5 to 8 have been acquired. Next, the images from the 1st to the 4th frame of layers 9 to 12 are acquired. The above process is repeated until the images from the 1st to the 4th frame of the OCTA region in layers 509 to 512 are finally acquired. This completes the acquisition of all images and yields the acquired images of the OCTA region.
[0063] Optionally, after acquiring the OCTA region image, disease diagnosis can be performed based on the OCTA region image. The diagnosis method can be to input the OCTA region image into a trained disease diagnosis model, which can then output the disease diagnosis result. Alternatively, the OCTA region image can be output through a display so that doctors can perform disease diagnosis using the OCTA region image.
[0064] The OCTA region image acquisition method provided in this embodiment first obtains the 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. Then, according to the image acquisition requirements, the first to N frames of the OCTA region are acquired from the first layer to the Nth layer. N is equal to the number of acquisition repetitions. Finally, according to the image acquisition requirements, the first to N frames of the OCTA region from the (N+1)th layer to the 2Nth layer are acquired until the first to N frames of the total number of acquisition layers are acquired, thus obtaining the acquired image of the OCTA region. First, the first to N frames of the OCTA region are acquired from the first to the Nth layer. Then, the first to N frames of the OCTA region from the (N+1)th to the 2Nth layer are acquired, and so on, until the first to N frames of the total number of layers are acquired. Since all frames are not acquired at the same layer, there is a time interval between the acquisition of images at the same layer, which increases the contrast between different frames. In addition, since this scheme requires frequent movement between different layers in 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 region images, reduce the problem of eye movement and motion artifacts caused by excessive acquisition time, and increase the clarity of the acquired images.
[0065] Optional, such as Figure 2 The diagram illustrates the acquisition process of an OCTA region image when the total number of acquisition layers is 512 and the acquisition is repeated 4 times. The process of acquiring the first frame of the first layer to the first frame of the first layer is called a single-step acquisition; the process of repeating single-step acquisition from the second frame of the first layer to the fourth frame of the fourth layer is called a single-repetition acquisition; and the process of repeating single-repetition acquisition until the fourth frame of the 512th layer is acquired is called overall acquisition.
[0066] Optional, such as Figure 3 The diagram illustrates the relationship between the OCTA region and the motion directions of the longitudinal and transverse galvanometers. The transverse and longitudinal galvanometers move in perpendicular directions.
[0067] To more comprehensively demonstrate this solution, this embodiment presents an optional method for acquiring OCTA region images, such as... Figure 4 As shown:
[0068] S201, Obtain 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 the image acquisition requirements, control the lateral galvanometer to move laterally in the first layer of the OCTA region, and acquire the first frame image of the OCTA region in the first layer.
[0071] S203 controls the longitudinal galvanometer to jump to the second layer of the OCTA region, and controls the transverse galvanometer to move laterally in the second layer of the OCTA region, acquiring the first frame image of the OCTA region in the second layer, until the acquisition of the first frame image of the Nth layer is completed.
[0072] Where N equals the number of times the data is collected repeatedly.
[0073] S204, control the longitudinal galvanometer to jump back to the first layer of the OCTA region, and control the transverse galvanometer to move laterally in the first layer of the OCTA region, and acquire the second frame image of the OCTA region in the first layer.
[0074] S205 controls the longitudinal galvanometer to jump to the second layer of the OCTA region, and controls the transverse galvanometer to move laterally in the second layer of the OCTA region, acquiring the second frame image of the OCTA region in the second layer, until the Nth frame image of the Nth layer is acquired.
[0075] S206, control the longitudinal galvanometer to jump to the N+1 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+1 layer of the OCTA region, and acquire the first frame image of the OCTA region in the N+1 layer.
[0076] S207: Control the longitudinal galvanometer to jump to the N+2 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+2 layer of the OCTA region to acquire the first frame image of the OCTA region in the N+2 layer, until the first frame image of the N+1 to 2N layers is acquired.
[0077] S208 controls the longitudinal galvanometer to jump back to the N+1 layer of the OCTA region, and controls the transverse galvanometer to move laterally in the N+1 layer of the OCTA region, acquiring the second frame image of the OCTA region in the N+1 layer, until the Nth frame image from the N+1 layer to the 2Nth layer is acquired.
[0078] S209, repeat the acquisition process until the Nth frame image corresponding to the total number of acquisition layers is completed, and the acquired image of the OCTA region is obtained.
[0079] S210, Disease diagnosis based on images acquired in the OCTA region.
[0080] The specific processes of S201-S210 described above can be found in the description of the above method embodiments. Their implementation principles and technical effects are similar, and will not be repeated here.
[0081] Based on the same inventive concept, this application also provides an OCTA region image acquisition device for implementing the OCTA region image acquisition method described above. The solution provided by this device is similar to the implementation described in the above method; therefore, the specific limitations of one or more OCTA region image acquisition device embodiments provided below can be found in the limitations of the OCTA region image acquisition method described above, and will not be repeated here.
[0082] In one embodiment, such as Figure 5 As shown, an OCTA region image acquisition device is provided, the device comprising:
[0083] The requirement acquisition module 30 is used to acquire 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 OCTA region images from the first to the Nth layers according to image acquisition requirements; N equals 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 region from layer N+1 to layer 2N according to the image acquisition requirements, until the first to N frames of images corresponding to the total number of acquisition layers are completed, and thus obtain the acquired image of the OCTA region.
[0086] In another embodiment, such as Figure 6 As shown above, Figure 5 The first acquisition module 31 in the middle includes:
[0087] The first acquisition unit 310 is used to acquire the first frame image of the OCTA region from the first layer to the Nth layer according to the image acquisition requirements;
[0088] The second acquisition unit 311 is used to acquire the second frame image of the OCTA region from the first layer to the Nth layer, until the acquisition of the Nth frame image of the first layer to the Nth layer is completed.
[0089] In another embodiment, the above Figure 6 The first acquisition unit 310 is specifically used to: control the lateral galvanometer to move laterally in the first layer of the OCTA region according to the image acquisition requirements, and acquire the first frame image of the OCTA region in the first layer; control the longitudinal galvanometer to jump to the second layer of the OCTA region, and control the lateral galvanometer to move laterally in the second layer of the OCTA region, and acquire the first frame image of the OCTA region 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 region, and control the transverse galvanometer to move laterally in the first layer of the OCTA region to acquire the second frame image of the OCTA region in the first layer; control the longitudinal galvanometer to jump to the second layer of the OCTA region, and control the transverse galvanometer to move laterally in the second layer of the OCTA region to acquire the second frame image of the OCTA region 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 for: controlling the longitudinal galvanometer to jump to the N+1 layer of the OCTA region, and controlling the transverse galvanometer to move laterally in the N+1 layer of the OCTA region, acquiring the first frame image of the OCTA region in the N+1 layer; controlling the longitudinal galvanometer to jump to the N+2 layer of the OCTA region, and controlling the transverse galvanometer to move laterally in the N+2 layer of the OCTA region, acquiring the first frame image of the OCTA region in the N+2 layer, until the first frame images of layers N+1 to 2N are acquired; controlling the longitudinal galvanometer to jump back to the N+1 layer of the OCTA region, and controlling the transverse galvanometer to move laterally in the N+1 layer of the OCTA region, acquiring the second frame image of the OCTA region in the N+1 layer, until the Nth frame image of layers N+1 to 2N is acquired; repeating the acquisition until the Nth frame image corresponding to the total number of acquisition layers is acquired, thus obtaining the acquired image of the OCTA region.
[0092] In another embodiment, the above Figure 5 The OCTA region image acquisition device is also used for: disease diagnosis based on the acquired OCTA region images.
[0093] This application also provides an electronic device, in some embodiments, referring to... Figure 7 As shown, the 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 on the processor 730. The processor 730 can execute the OCTA region image acquisition method and / or technical solution based on the foregoing embodiments by calling the program instructions. The electronic device 700 can be a mobile terminal device such as a mobile phone or a computer.
[0094] Furthermore, embodiments of this application also provide a computer-readable storage medium for storing a computer program that performs an OCTA area image acquisition method. For example, computer program instructions, when executed by a computer, can invoke or provide the methods and / or technical solutions according to this application through the operation of the computer. The program instructions that invoke the methods of this application may be stored in a fixed or removable storage medium, and / or transmitted via data streams in broadcast or other signal carrying media, and / or stored in a storage medium that operates according to the program instructions.
[0095] Obviously, those skilled in the art should understand that the modules or steps of this application described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device, or fabricating them separately as individual integrated circuit modules, or fabricating multiple modules or steps as a single integrated circuit module. Thus, this application is not limited to any particular combination of hardware and software.
[0096] The technical features of the above embodiments can be arbitrarily integrated. For the sake of brevity, not all possible integrations of the technical features in the above embodiments are described. However, as long as the integration of these technical features does not contradict each other, they should be considered to be within the scope of this specification.
[0097] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.
Claims
1. A method for acquiring OCTA region images, characterized in that, The method includes: 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; According to the image acquisition requirements, the transverse galvanometer is controlled to move laterally in the first layer of the OCTA region to acquire the first frame image of the OCTA region in 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 first frame image of the OCTA region in the second layer, until the acquisition of the first frame image of the Nth layer is completed; where N is equal to the number of acquisition repetitions. Control the longitudinal galvanometer to jump back to the first layer of the OCTA region, and control the transverse galvanometer to move laterally in the first layer of the OCTA region to acquire the second frame image of the OCTA region in 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 in the second layer, until the Nth frame image of the Nth layer is acquired. According to the image acquisition requirements, the first to N frames of the OCTA region are acquired from layer N+1 to layer 2N until the first to N frames of the total number of layers are acquired, thus obtaining the acquired image of the OCTA region.
2. The OCTA region image acquisition method as described in claim 1, characterized in that, According to the image acquisition requirements, the first to N frames of images of the OCTA region from layer N+1 to layer 2N are acquired until the first to N frames corresponding to the total number of layers are acquired, thus obtaining the acquired images of the OCTA region, including: The longitudinal galvanometer is controlled to jump to the N+1 layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the N+1 layer of the OCTA region to acquire the first frame image of the OCTA region in the N+1 layer. The longitudinal galvanometer is controlled to jump to the N+2 layer of the OCTA region, and the transverse galvanometer is controlled to move laterally in the N+2 layer of the OCTA region to acquire the first frame image of the OCTA region in the N+2 layer, until the first frame image of the N+1 to 2N layers is acquired. Control the longitudinal galvanometer to jump back to the N+1 layer of the OCTA region, and control the transverse galvanometer to move laterally in the N+1 layer of the OCTA region to acquire the second frame image of the OCTA region in the N+1 layer, until the Nth frame image from the N+1 layer to the 2Nth layer is acquired; Repeat the acquisition process until the Nth frame image corresponding to the total number of acquisition layers is completed, thus obtaining the acquired image of the OCTA region.
3. An OCTA region image acquisition device, characterized in that, The device includes: The requirement acquisition module is used to acquire image acquisition requirements; the image acquisition requirements include the total number of acquisition layers and the number of acquisition repetitions, wherein 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; The first acquisition module controls the lateral galvanometer to move laterally in the first layer of the OCTA region according to the image acquisition requirements, and acquires the first frame image of the OCTA region in 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 first frame image of the OCTA region in the second layer, until the acquisition of the first frame image of the Nth layer is completed; where N is equal to the number of acquisition repetitions. Control the longitudinal galvanometer to jump back to the first layer of the OCTA region, and control the transverse galvanometer to move laterally in the first layer of the OCTA region to acquire the second frame image of the OCTA region in 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 in the second layer, until the Nth frame image of the Nth layer is acquired. The second acquisition module is used to acquire the first to N frames of images of the OCTA region from layer N+1 to layer 2N according to the image acquisition requirements, until the first to N frames of images corresponding to the total number of acquisition layers are completed, and thus obtain the acquired image of the OCTA region.
4. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the OCTA region image acquisition method according to any one of claims 1 to 2.
5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the OCTA region image acquisition method according to any one of claims 1 to 2.
6. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the method for acquiring OCTA region images as described in any one of claims 1 to 2.