A near-eye gaze tracking method and system

A technology of eye-tracking and near-eye, which is applied in mechanical mode conversion, character and pattern recognition, acquisition/recognition of eyes, etc. It can solve the problems of complex calculation and limited head movement range, so as to improve calculation efficiency and meet real-time performance Requirements, effects of guaranteed accuracy
CN105138965BActive Publication Date: 2018-06-19SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2018-06-19

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Abstract

The invention discloses a near-eye line-of-sight tracking method. The specific steps are as follows: 1) Gaze point calibration: according to the captured eye image and the corresponding scene map, determine the eye map data and the coordinates of the calibration point in the scene map, and then calculate the eye 2) Gaze point estimation: According to the real-time acquired eye image parameters and the mapping equation obtained in the calibration process, the position of the gaze point in the scene graph is estimated. The invention also discloses a near-eye sight tracking system, which only needs one infrared light source, two ordinary cameras, one processor and a fixed connection device. The invention does not need to preprocess the image, has low computational complexity, has no restriction on the head movement, has a natural and comfortable realization process, is easy to realize, and the estimation error is within the tolerance range of the line-of-sight tracking application.
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Description

technical field

[0001] The invention relates to a near-eye line-of-sight tracking method and a system thereof, belonging to the technical field of video and multimedia signal processing. Background technique

[0002] With the rapid development of computer science and technology, human-computer interaction has gradually become an important part of people's daily life. As an important branch of human-computer interaction technology, gaze tracking and recognition technology plays a huge role in intelligent human-computer interaction. It is widely used in armament development, unmanned driving, disabled assistance, virtual reality and other fields.

[0003] The sight tracking system based on video images can be divided into long-distance sight-tracking system and short-range sight-tracking system according to the distance of the camera shooting the eyes. The long-range eye tracking system places the camera in a fixed position in front of the screen, while the short-range eye t...

Claims

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