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Eye-tracking method and device

A technology of eye-tracking and vision, applied in the field of image processing, which can solve problems such as low speed and low accuracy of screen landing position

Active Publication Date: 2015-09-30
BOE TECH GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low accuracy and low speed of the screen where the human eyes are gazing, the present invention provides a method and device for tracking the gaze

Method used

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Embodiment Construction

[0097] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0098] Picture 1-1 A schematic diagram showing a gaze tracking method in the related art, such as Picture 1-1 As shown, the method first collects the human image through the camera, then processes the human image to obtain the human face image, and then uses the symmetry of the head contour to narrow the range of the human face image, detect the potential area of ​​the human eye, and obtain Visual characteristic parameters of the human eye. Then use the Kalman filter method to track the line of sight, determine the line of sight direction of the human eye, and obtain the position of the screen where the human eye is gazing. Among them, the visual feature parameters mainly depend on some optical properties of the human eye structure, ...

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Abstract

The invention discloses an eye-tracking method and device and belongs to the technical field of image processing. The eye-tracking method comprises the following steps: determining an observation area where the iris center of an iris image to be tested is according to a target model which is obtained according to target parameters and an extreme learning machine neural network; adopting the observation area to correct a predication area to obtain a target area, wherein the prediction area is the area, where the iris center of the iris image to be tested is located, determined by the Kalman filtering method; determining a screen falling position watched by an eye according to the target area. The eye-tracking method and device solve the problems that the eye watching accuracy and speed of the screen falling point are relatively low, achieve the effect of improving the eye watching accuracy and speed of the screen falling point, and are used for eye tracking.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a line of sight tracking method and device. Background technique [0002] Human-computer interaction is a technology to study human and machine and their interaction. Through human-computer interaction technology, all possible information channels can be used to realize the communication between human and machine. With the rapid development of electronic technology, human-computer interaction technology is widely used in the interaction between human and TV. The function of TV is becoming more and more powerful, and the design of remote control is becoming more and more complicated. Computer interaction will lengthen the interaction time and reduce the interaction efficiency. Therefore, the method of human-computer interaction based on eye-tracking has received extensive attention. Gaze tracking is a technology that uses various detection methods such as machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01G06K9/54
CPCG06T7/277G06F3/005G06F3/013G06T2207/20084G06T2207/30201G06V40/18
Inventor 钱晨菲赵可宁
Owner BOE TECH GRP CO LTD
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