Near-to-eye sight tracking method and system thereof

A gaze tracking and near-eye technology, which is applied to the near-eye gaze tracking method and system, can solve the problems of complex calculation and limited head movement range.

Active Publication Date: 2015-12-09
SOUTHEAST UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

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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  • Near-to-eye sight tracking method and system thereof
  • Near-to-eye sight tracking method and system thereof
  • Near-to-eye sight tracking method and system thereof

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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 present invention discloses a near-to-eye sight tracking method which specifically comprises the following steps: 1) definition and detection of watch point: according to a captured eye image and a corresponding scene graph, determining a coordinate of eye graph data and a definition and detection point in the scene graph, and then calculating a mapping relationship of eye image and scene graph; and and 2) estimation of watch point: according to a real-time obtained eye image parameter and a mapping equation obtained in the process of definition and detection, estimating a watch point position in the scene graph. The present invention further discloses a near-to-eye sight tracking system which only requires one infrared radiation source, two common cameras and one processor and fixing and connecting apparatus. According to the present invention, preprocessing for images is not needed, calculation complexity is low, no restriction is posed to head movement, the implementation process is natural and comfortable, implementation is easy, the estimation error is in the error allowable range of sight tracking application.

Description

technical field [0001] The invention relates to a near-eye line-of-sight tracking method and 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 activities have gradually become an important part of people's daily life. Gaze tracking and recognition technology, as an important branch of human-computer interaction technology, plays a huge role in intelligent human-computer interaction. It is widely used in arms development, unmanned driving, assistance for the disabled, virtual reality and other fields. [0003] Eye-tracking systems based on video images can be divided into long-distance eye-tracking systems and short-distance eye-tracking systems according to the distance from the eyes captured by the camera. The long-distance eye-tracking system places the camera at a fixed position in front of the screen, while th...

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Application Information

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