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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

Active Publication Date: 2018-06-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: Aiming at the problem that the existing gaze tracking method is complex in calculation and restrictive to the range of head movement, the present invention provides a near-eye gaze tracking method and system with low computational complexity, free movement of the head, and strong practicability

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  • A near-eye gaze tracking method and system
  • A near-eye gaze tracking method and system
  • A near-eye gaze tracking method and system

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Embodiment Construction

[0056] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art are all equivalent transformations of the present invention fall within the scope defined by the appended claims of this application.

[0057] The hardware system for implementing the near-eye eye-tracking method is as follows: figure 1 As shown, it includes an eye camera, a scene camera, an infrared light source, a personal computer and fixed connection devices. The scene camera, the eye camera, and the infrared light source are fixed on the helmet, and the infrared filter is loaded on the lens of the eye camera. As the head moves, the infrared light source, scene camera, and eye camera remain relatively still, so the tester has no restrictions on the tester'...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F3/01
CPCG06F3/013G06V40/193
Inventor 刘硕硕夏军
Owner SOUTHEAST UNIV