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Full-view pupil analysis measurement method

A full field of vision, pupil technology, applied in the field of full field of pupil analysis and measurement, can solve the problems that real-time measurement results cannot be obtained, binocular pupil detectors are not suitable for carrying, and pupil measurement boards cannot achieve real-time measurement.

Inactive Publication Date: 2009-08-26
FOURTH MILITARY MEDICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0004] The existing simple pupil measuring board in China cannot achieve real-time measurement, and the binocular pupil detector is not suitable for carrying. Other hand-held pupil measuring devices are easy to carry, but cannot obtain real-time measurement results

Method used

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  • Full-view pupil analysis measurement method

Examples

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Embodiment Construction

[0040] Such as figure 1 As shown, this is an example method that utilizes an existing notebook computer with a camera to improve, and is different from an existing notebook computer with a camera, the original camera 8 of the notebook computer (image processing unit 1) is connected with the The notebook computer is electrically connected; the notebook computer includes a video interface port 12 . In this way, the image detection unit 2 should include a camera 8, a drive circuit 10, a housing for fixing the camera 8 and the drive circuit 10, a handle 6 is arranged at the lower end of the housing, and a switch 7 is arranged on the handle 6. In fact the image detection unit 2 constitutes a hand-held pupillometer.

[0041] The power supply of the image detection unit 2 is directly taken from the notebook computer power supply; the original camera 8 drive circuit 10 of the notebook computer is moved from the image detection unit 2, so that the image detection unit 2 directly outpu...

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Abstract

The invention relates to a full-view pupil analysis measurement method, comprising: the step 300 of real-time capturing the image data at ocular areas via a video capture card at first to obtain ocular area images; the step 301 of: graying the images captured in the step 300 by means of a method of mean value, a method of extreme value or a method of formula; the step 302 of implementing a binarization treatment on the grayed images in the step 301 by means of a method of histogram, wherein, when the background is largely differed from the target and double peaks appear on the histogram, the lowest valley point at this moment is regarded as a threshold value point; the step 303 of eliminating light reflection at pupil areas of the binarized images; the step 304 of determining a center of the pupil, calculating the diameter of the center, extracting the circle center of the pupil and determining the diameter of the pupil so as to realize tracking measurement of the center of the pupil. The invention is a full-view pupil analysis measurement method that is great in real-time property and convenient in usage.

Description

technical field [0001] The invention belongs to image detection and processing technology, in particular to a full-view pupil analysis and measurement method. Background technique [0002] At present, with the continuous advancement of science and technology and medical level, studies have shown that objective and quantitative pupil detection is more and more applied in various directions. [0003] In medical research, excimer laser refractive surgery (LASIK), neuro-ophthalmology (such as retrobulbar optic neuritis), diabetes, neurobiology and autonomic nervous system function research, central nervous system diseases, brain function, neuropsychiatric diseases ( Such as monitoring of increased intracranial pressure, observation of cerebral apoplexy, auxiliary judgment of brain death), intensive care and emergency medicine, anesthesia (such as anesthesia depth monitoring), clinical pharmacology, eye movement detection, video nystagmus detection / infrared nystagmus detection (u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/10G06T7/00
Inventor 张作明耿佳郭群李莉徐世伟
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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