Unlock instant, AI-driven research and patent intelligence for your innovation.

Eye pupil positioning method, system and shooting terminal for eye images

An eye image and positioning method technology, applied in the field of image processing, can solve problems such as eye texture deformation, influence of eye pupil positioning accuracy, uneven illumination, etc., to achieve the effect of simple algorithm, fast calculation speed, and improved accuracy

Active Publication Date: 2019-09-17
XIAMEN MEITUZHIJIA TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the illumination of the eye image is uneven in some cases, and the size of the inner boundary of the iris will change, which will deform the texture inside the eye, which will affect the accuracy of pupil positioning

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Eye pupil positioning method, system and shooting terminal for eye images
  • Eye pupil positioning method, system and shooting terminal for eye images
  • Eye pupil positioning method, system and shooting terminal for eye images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] Such as figure 1 Shown, the eye pupil positioning method of a kind of eye image of the present invention, it comprises the following steps:

[0046] 10. Perform grayscale analysis and pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an eye pupil positioning method, system and shooting terminal of an eye image, which obtains a grayscale image by performing grayscale analysis and processing on the eye image to be processed, and performs binary processing on the grayscale image The binary image is obtained by chemical processing, and then the judgment of the area mark and the shape of the area is carried out on the binary image. If the judgment result is a non-circular area, the rough positioning of the eye pupil is performed first, and then the precise positioning of the eye pupil is performed. If the judgment result If it is a circular area, then use the energy formula to precisely locate the eye pupil directly according to the circular area, so as to obtain the precise eye pupil positioning point; not only the algorithm is simple, the calculation speed is fast, but also the accuracy of eye pupil positioning is greatly improved It is especially suitable for the positioning of eye images with low contrast or high light, and has a significant improvement effect.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an eye pupil positioning method for an eye image, a system for applying the method, and a shooting terminal. Background technique [0002] Since there is no requirement for shooting, the image of the eye area includes a lot of uncertainties in the environment of taking pictures: for example, whether there is noise in a certain human eye image (such as eyelids, eyelashes occlusion or bright reflection in the image), the The subject of the image (what is the human eye), the parameters of the image (what image acquisition sensor is used, or the size of the human eye image, whether it is compressed, or the image format, etc.). At the same time, the illumination of the eye image is uneven in some cases, and the size of the inner boundary of the iris will change, which will deform the texture inside the eye, which will affect the accuracy of pupil positioning . Contents of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/193
Inventor 张伟侯峰张长定傅松林
Owner XIAMEN MEITUZHIJIA TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com