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Sight line tracking system and method

A line-of-sight tracking and line-of-sight technology, which is applied to TV system components, TVs, color TVs, etc., can solve problems such as the need to improve the accuracy of line-of-sight tracking, the inability to support multiple people's line-of-sight estimation and tracking, and narrow viewing angles.

Inactive Publication Date: 2014-10-22
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

However, this method also has the following disadvantages: (1) the viewing angle is narrow due to the need for a long-focus camera; (2) it cannot support multiple people for line-of-sight estimation and tracking at the same time; (3) the line-of-sight tracking accuracy needs to be improved

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  • Sight line tracking system and method
  • Sight line tracking system and method

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Embodiment Construction

[0073] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Throughout the drawings, like reference numerals denote like structures, features, and elements.

[0074] figure 1 is a block diagram showing a gaze tracking system according to an embodiment of the present invention.

[0075] refer to figure 1 , the gaze tracking system according to an embodiment of the present invention may include multiple cameras 10 , multiple groups of light sources 20 corresponding to the multiple cameras, a light source control device 30 , a gaze feature detection unit 40 and a gaze estimation unit 50 . Optionally, the line of sight tracking system according to the embodiment of the present invention may further include an attention position correction unit 60 .

[0076] According to an embodiment of the present invention, a plurality of cameras 10 may be arranged below the screen viewed by the user. However, a plurality of came...

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Abstract

The invention discloses a sight line tracking system and method. The sight line tracking system includes the following components of: a plurality of cameras; a plurality of groups of light sources corresponding to the plurality of cameras; a light source control device which controls the plurality of groups of light sources to emit light sequentially so that the plurality of cameras can photograph bright pupil images and dark pupil images of users; a sight line feature detection unit which detects the positions of pupil center points and the positions of reflection bright spots from the bright pupil images and the dark pupil images photographed by the cameras; and a sight line estimation unit which calculates the three-dimensional space positions of cornea hook face center points and the pupil center points through using detected positions of the pupil center points and positions of the reflection bright spots so as to track the direction of the sight lines of two eyes so that a concerned position of the two eyes can be determined.

Description

technical field [0001] The present invention relates to a line of sight tracking system and method, more specifically, to a high-precision line of sight tracking system and method based on multiple cameras and using a binocular line of sight estimation model. Background technique [0002] Gaze is the direction in which the eyes are looking, and it represents the focus of a person's attention. Gaze tracking has been an active research topic in recent decades. Gaze tracking has great application potential in the field of human-computer interaction. For example, when the user gazes at the display screen, the gaze point of the user on the screen can be estimated by a gaze tracking system. As a result, gaze can be used as a means of advanced computer input, which has proven to be more efficient than traditional input devices such as mice, and gaze-tracking systems can also be used by people with physical disabilities. In addition, an interactive display based on eye-tracking t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G06K9/00
CPCG06V40/19G06V10/145
Inventor 王西颖高书征金智渊
Owner BEIJING SAMSUNG TELECOM R&D CENT
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