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Human eye sight tracking and positioning method adopting six-point method block fuzzy weighting

A technology of eye tracking and positioning method, applied in the field of eye tracking, which can solve the problems of poor global adaptability of results and large amount of calculation and calculation.

Active Publication Date: 2020-07-17
中国人民解放军海军特色医学中心
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for tracking and locating human eye sight by using six-point block fuzzy weighting, and then at least to a certain extent overcome the large amount of calculation and global adaptation of the results caused by the limitations and defects of related technologies bad sex problem

Method used

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  • Human eye sight tracking and positioning method adopting six-point method block fuzzy weighting
  • Human eye sight tracking and positioning method adopting six-point method block fuzzy weighting
  • Human eye sight tracking and positioning method adopting six-point method block fuzzy weighting

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Embodiment

[0144] A six-point method block blur weighted calibration human eye sight tracking method, comprising the following steps:

[0145] Step S10, first perform area segmentation on the screen S, such as figure 2 As shown, the screen area is divided into 6 small blocks, denoted as S 1 , S 2 , S 3 , S 4 , S 5 , S 6 .

[0146] Step S20, first let the subject's eyes look at the screen area S 1 A 11 point, such as image 3 As shown, the eye-tracking camera system is used to capture the human eye and capture a partial high-definition image, denoted as B 1 ,Such as Figure 4 shown;

[0147] Then for the high-definition human eye partial image B 1 Carry out filtering preprocessing, remove the noise in the image, and obtain the filtered image, denoted as B 2 ,Such as Figure 5 shown;

[0148] Finally, through bright spot detection and pupil detection methods, the pupil cornea vector is extracted, denoted as (x e1 ,y e1 ),Such as Image 6 Indicated by '+';

[0149] Step ...

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Abstract

A human eye sight tracking and positioning method adopting six-point method block fuzzy weighting is characterized by comprising the following steps: step S10, screen area segmentation; s20, performing image preprocessing and pupil cornea vector extraction; s30, calculating a six-point pupil cornea vector of a single area; step S40, preliminary calibration of a sight tracking position and solvingof a calibration factor vector of a first region; s50, solving calibration factor vectors of all regions; s60, solving a pupil cornea error vector; s70, establishing a fuzzy system, and solving fuzzyrelevancy; s80, fuzzy weighted calibration is carried out; and S90, carrying out real-time positioning calculation and sight tracking. According to the human eye sight tracking and positioning methodadopting six-point method block fuzzy weighting, the problems of large calculation amount and poor result global adaptability caused by limitation and defects of related technologies are further solved to a certain extent.

Description

technical field [0001] The invention relates to the field of line of sight tracking, in particular to a line of sight tracking and positioning method using fuzzy weighting. Background technique [0002] Eyes are an important channel for people to obtain information, and about 80% to 90% of information comes from vision. Eyes can reflect the physiological and psychological changes of the human body, and the study of eye movement is considered to be the most effective means in the study of visual information processing. [0003] Gaze tracking is a technology that uses mechanical, electronic, optical and other detection methods to obtain the subject's current "gaze direction". [0004] By tracking the vision, it is possible to obtain the saccade selection and fixation process when people observe the external scene and related information, so that the human visual perception and information processing mode can be studied, and finally the human cognitive mode can be obtained. M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/34
CPCG06V40/193G06V40/19G06V10/267Y02T10/40
Inventor 李科华姚永杰王庆敏戴圣龙刘秋红
Owner 中国人民解放军海军特色医学中心
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