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A Gaze Tracking Calibration Method Based on Usage History

A gaze tracking and calibration technology, applied in multimedia signal processing and video fields, can solve problems affecting the naturalness of user experience

Active Publication Date: 2018-05-11
山东管理学院
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, calibration is required before each use of the eye-tracking device, which greatly affects the naturalness of the user experience

Method used

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  • A Gaze Tracking Calibration Method Based on Usage History
  • A Gaze Tracking Calibration Method Based on Usage History
  • A Gaze Tracking Calibration Method Based on Usage History

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Experimental program
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Embodiment Construction

[0039] The method of the invention is a line of sight tracking system using an infrared light source. The hardware system includes a 2.99GHZ Dell dual-core personal computer. The monitor screen is 19 inches (41×26cm), and a near-infrared light source is installed at the two corners below the monitor to generate reflection points on the cornea, and a resolution sensor is installed under the computer. A 680×480 grayscale camera was used to collect video during the experiment. The subject is at a distance of 60cm from the screen, and the head can move within the field of view of the camera.

[0040] figure 1 The hardware block diagram of the system is given, figure 2 A block diagram of the gaze tracking system is given, image 3 The implementation process of the invention is given, and the specific implementation steps of the invention according to the process are as follows:

[0041] (1) Determine the functional relationship between the calibration points according to the a...

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Abstract

The present invention proposes a gaze tracking calibration method based on usage history. In the traditional gaze tracking algorithm, the user needs to gaze at specific multiple calibration points to improve the system accuracy. This calibration process needs to be performed before each use, which affects the naturalness of the user experience. We improved the calibration process in the gaze tracking algorithm, and proposed a simplified strategy for the calibration process for specific users. We convert the traditional calibration process. The traditional calibration process is to calibrate before each use, and each use is performed according to each calibration data; we first collect multiple calibration data, and then In the process of subsequent use, the dependence of each use on the calibration is reduced according to the obtained calibration relationship, and the calibration process for subsequent use is simplified after a certain number of uses is accumulated.

Description

technical field [0001] The invention relates to a line-of-sight tracking correction method based on dual light sources, and belongs to the technical field of video and multimedia signal processing. Background technique [0002] Eyes are the main organ for human beings to obtain information from the surrounding environment, and they are also an important way to express personal interest requirements and emotional states. Therefore, eye motion detection and gaze tracking technology has always been a hot field of research at home and abroad. With the rapid development of science and technology, eye-tracking technology has been widely used in psychological testing, advertising design, medical diagnosis and so on. As an interactive technology, the application research of eye-tracking technology is gradually attracting attention and has broad prospects. [0003] In the process of actual interactive application of eye-tracking technology, there are several challenges: 1) Most eye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06F3/14G06K9/00
Inventor 李静
Owner 山东管理学院
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