A sight calibration method, a display device playback method, and a sight calibration system
A line-of-sight and calibration technology, applied in the field of line-of-sight detection, can solve problems such as errors, undetected human eye gaze at the camera, etc., and achieve the effect of accurate human line of sight and wide application prospects
Active Publication Date: 2022-04-22
BOE TECH GRP CO LTD +1
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However, when using these algorithms, there is no calibration between the eyeball and the camera, that is, the state of the human eye looking at the camera is not detected, which will cause some errors in actual detection
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[0061] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[0062] Sight detection technology usually judges the direction of sight by calculating the movement of the eyeball. If the eyeball and the camera are not calibrated before use, it is easy to cause errors in detection. At the same time, in the field of line of sight detection, the camera is usually used as a passive image acquisition device, that is, the camera is called to acquire an image when an image is needed, otherwise the camera is in a waiting state.
[0063]In order to solve at least one of the above problems, the ...
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The invention discloses a line of sight calibration method, a display device playback method, a line of sight calibration system, a computer-readable storage medium, and computer equipment. The line of sight calibration method includes: S1: receiving a user's image captured by a camera; S2 : Obtain a plurality of human face feature points according to the image; S3: Calculate the human eye center point and pupil position according to the plurality of human face feature points, so as to obtain the human eye sight line and the camera sight line; S4: judge the human eye sight line and the camera line of sight Whether the line of sight overlaps, if they coincide, the line of sight of the human eye and the line of sight of the camera are used as the calibration reference, otherwise, jump to S1. The embodiment provided by the present invention judges whether the human eye is watching the camera according to the defined camera line of sight and the human eye line of sight, so as to determine the standard state when the human eye is watching the camera, which can solve the problems in the prior art, and realize accurate detection without calibration of the camera. Detecting the sight line of human eyes has wide application prospects.
Description
technical field [0001] The present invention relates to the technical field of line of sight detection, in particular to a line of sight calibration method, a playback method of a display device, a line of sight calibration system, a computer-readable storage medium and computer equipment. Background technique [0002] Line of sight detection is a technology that uses mechanical, electronic, optical and other detection methods to obtain the user's current gaze direction. It has a wide range of applications in the field of human-computer interaction, such as virtual typing, fatigue driving detection, games, education, etc. Traditional line-of-sight detection methods use electromagnetics, optics or video image processing methods for detection. Sight detection based on video images needs to calculate the corresponding relationship between human eyes and cameras, and judge the direction of sight by detecting the movement of eyeballs. However, when these algorithms are used, th...
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IPC IPC(8): G06V40/16G06V40/18G06V10/774G06K9/62G06T7/80
CPCG06T7/80G06V40/166G06V40/168G06V40/19G06F18/214G06F3/013G06V40/171G06V40/193G06T7/0012G06T2207/30041G06T2207/30201G06V40/18
Inventor 闫桂新楚明磊张浩陈丽莉董学
Owner BOE TECH GRP CO LTD