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

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 ...

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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 not suitable for all patients, when the patient has poor visual fixation or frequent blinking or In the case of movement, it will cause the problem that the OCTA image is relatively inaccurate

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