Eye movement tracking method and device for anterior segment OCTA, equipment and storage medium

An eye-tracking and anterior segment technology, applied in character and pattern recognition, instruments, computing, etc., can solve problems such as inaccurate OCTA images

Pending Publication Date: 2022-04-19
TOWARDPI (BEIJING) MEDICAL TECH LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides an eye tracking method, device, equipment and storage medium for anterior segment OCTA, which can improve the current OCTA. It is no

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  • Eye movement tracking method and device for anterior segment OCTA, equipment and storage medium
  • Eye movement tracking method and device for anterior segment OCTA, equipment and storage medium
  • Eye movement tracking method and device for anterior segment OCTA, equipment and storage medium

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Embodiment Construction

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0049] The eye-tracking method for anterior segment OCTA provided in the embodiment of the present application can be applied in the technical field of eye-tracking.

[0050] OCTA is to detect the movement of red blood cells in the blood vessel cavity by measuring the OCT signal changes of multiple scans of the same cross-section, and combine the information of continuous cross-sectional (en face) OCT images to obtain a complete three-dimensional vascular image of the retina and choroid. Among them, en face OCT is a transverse tomographic image technology based on traditional high-density B-scan (B-scan) images and processed by software operations.

[0051]...

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Abstract

The embodiment of the invention provides an eye movement tracking method and device for anterior segment OCTA, equipment and a storage medium, and relates to the field of eye movement tracking. The method comprises the following steps: acquiring two continuous frames of pupil images; contour extraction is carried out on the two frames of pupil images, and two pupil contours are obtained; judging whether the two pupil contours are similar to a reference contour or not; and if so, calculating the central position offset of one pupil contour relative to the other pupil contour. According to the method and the device, the problems that the current OCTA is not suitable for all patients and the OCTA image is relatively inaccurate under the condition that the patient is poor in fixation of vision or frequently blinking or moving can be solved, and the effects of improving the suitability of the current OCTA and improving the accuracy of the OCTA image under the condition that the patient is poor in fixation of vision or frequently blinking or moving are achieved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of eye movement tracking, and in particular to an eye movement tracking method, device, device and storage medium for anterior segment OCTA. Background technique [0002] Optical coherence tomography angiography (OCTA, Optical Coherence Tomography Angiography,) was originally applied to the posterior segment of the eye, that is, the fundus. In vivo imaging of retinal choroidal microvascular circulation. It has unique advantages in normal retinal choroidal vascular changes and disease management follow-up and treatment effect detection. Similarly, in the anterior segment, the blood flow signal in the scanning area is obtained by performing multiple scans of the same cross-section through optical coherence tomography (OCT, optical coherence tomography) signal changes, and continuous scanning of multiple cross-sections can be obtained OCTA image of the area scanned in the anterior ...

Claims

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Application Information

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IPC IPC(8): G06V40/18G06V10/44G06V10/74G06K9/62
CPCG06F18/22
Inventor 尚学森汪霄
Owner TOWARDPI (BEIJING) MEDICAL TECH LTD
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