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Method, device, storage medium and terminal device for detecting line-of-sight point

A line-of-sight and drop-point technology, applied in the computer field, can solve problems such as inconvenience, data errors, and inaccurate determination of line-of-sight drop points, and achieve the effect of improving accuracy and facilitating detection.

Active Publication Date: 2019-01-25
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above scheme will bring inconvenience to the tested persons
Only two-dimensional color images are used for detection, and the acquired data may have errors, which will lead to inaccurate determination of the line of sight

Method used

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  • Method, device, storage medium and terminal device for detecting line-of-sight point
  • Method, device, storage medium and terminal device for detecting line-of-sight point

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Embodiment Construction

[0068] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0069] see figure 1 , an embodiment of the present invention provides a method for detecting a gaze point. This embodiment can be applied in the field of human-computer interaction: for example, when the user browses e-books, videos, online stores, etc., the interest of the user is obtained. This embodiment can also be applied to a driver's attention detection scene while driving in vehicles such as automobiles, ships, and airplanes. This embodiment includes step S100 to step S500, specifically as follows:

[0070] S100. Obtain a facial image of an observer watching a display screen.

[0071] In this em...

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Abstract

The invention provides a method, a device, a storage medium and a terminal device for detecting a line-of-sight point, wherein, the method comprises the following steps: obtaining a face image when anobserver looks at a display screen; extracting feature points of a face region and an eye region from the face image; tracking an initial picture sequence of the face image, iteratively calculating afeature point of the face region to obtain a head posture of the observer; determining a line-of-sight angle and a line-of-sight confidence parameter of the observer according to a characteristic point of the eye region; according to the head posture, the line-of-sight angle and the line-of-sight confidence parameter, and the distance of the observer to the display screen, determining the line-of-sight of the observer to be at a point-of-arrival position of the display screen. By adopting the invention, the position of the line of sight falling point of the observer can be conveniently, quickly and accurately determined.

Description

technical field [0001] The present invention relates to the field of computer technology, and in particular to a method, device, storage medium and terminal equipment for detecting a sight point. Background technique [0002] People often express interest in an object or a certain visual area through frequent fixation. Gain user interest by tracking eye movement, collecting and analyzing eye movement data. For example, when a user watches a video, e-book or online store, by tracking the user's eye movement, it is possible to know and judge the user's preference. Among them, the sight point of the eyes can transmit a large amount of information reflecting the psychological activities of the human body. [0003] In the prior art, in order to accurately measure the gaze point of the eyes, the head of the subject is usually fixed to fix the head posture. Alternatively, the subject wears a head-mounted device on the head to track the change data of the head posture, and then a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06F3/01
CPCG06F3/013G06V40/171G06V40/19G06V10/25
Inventor 赵彤彤燕飞龙王亮马彧
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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