Method and device for pupil positioning

A pupil positioning and pupil technology, which is applied in the medical field, can solve the problems that the detection accuracy cannot be guaranteed, the accuracy of diagnosis and the effect of treatment are affected, and it is time-consuming and labor-intensive.

Inactive Publication Date: 2017-07-04
CHONGQING BIO NEWVISION MEDICAL EQUIP LTD
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  • Abstract
  • Description
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Problems solved by technology

This method is time-consuming and laborious, and the detection accuracy cannot be gua

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  • Method and device for pupil positioning
  • Method and device for pupil positioning
  • Method and device for pupil positioning

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0041] It should be noted that like numerals and let...

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Abstract

The invention relates to the field of medical technology, and particularly to a method and a device for pupil positioning. The method for pupil positioning comprises the steps of successively sliding a plurality of preset eye templates according to a preset sliding length for matching a video image of a current frame, and obtaining an area video image with highest matching degree to a preset eye template; performing binarization on an area video image according to a preset first algorithm, and obtaining a binarized area video image; extracting the contour of the binarized area video image, dividing the contour into a plurality of fragments, extracting a plurality of reference points from each fragment, performing ellipse fitting on the plurality of selected reference points according a preset second algorithm; and respectively calculating matching degrees between the plurality of ellipses and the contour according to a preset third algorithm, wherein the central coordinate of the ellipse with highest matching degree to the contour is the position coordinate of the pupil. Furthermore the method and the device have advantages of quickly and accurately finding out position of the pupil, and improving diagnosis efficiency and diagnosis precision.

Description

technical field [0001] The present invention relates to the field of medical technology, in particular to a pupil positioning method and device. Background technique [0002] Nowadays, as health is paid more and more attention to, people's requirements for medical and sanitary conditions are getting higher and higher, and the demand and dependence of hospitals and doctors on medical devices are also increasing. In ophthalmic disease diagnosis and treatment equipment, OCT, slit lamp, corneal endotheliometer, confocal laser fundus imaging instrument, fundus camera, tonometer, fundus blood sample concentration detection, etc., are commonly used testing equipment for ophthalmic disease diagnosis. Both require the doctor to manually adjust the equipment or the patient's posture or position to find the patient's pupil, and then perform specific diagnosis. Such an approach is time-consuming and laborious, and the detection accuracy cannot be guaranteed, which in turn affects the a...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06K9/40G06K9/62
CPCG06V40/197G06V10/30G06V10/443G06F18/213
Inventor 凌鑫王斌
Owner CHONGQING BIO NEWVISION MEDICAL EQUIP LTD
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