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Title:
3D GAZING POINT DETECTION BY BINOCULAR HOMOGRAPHY MAPPING
Document Type and Number:
WIPO Patent Application WO/2019/153370
Kind Code:
A1
Abstract:
A system for detecting a gazing point of a user in a three-dimensional (3D) space based on a virtual screen is provided. The system includes at least a processor and a wearable device, the wearable device further comprising an external camera arranged for capturing images of the user's field of view, and two internal cameras arranged for capturing binocular images of the user's left and right eyes. The processor is designed to determine the gazing point of the user based on a virtual screen. The coordinates of the pupil center as determined according to the images from the internal cameras are mapped to the images from the external camera based on a left and a right mapping relationships, which further mapped to the virtual screen as an intermediate screen for calculating the 3D coordinates of the gazing point.

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Inventors:
ZHANG WEI (CN)
CHAN KIN LUNG (CN)
POON KAM HO (CN)
Application Number:
PCT/CN2018/076814
Publication Date:
August 15, 2019
Filing Date:
February 14, 2018
Export Citation:
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Assignee:
HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (CN)
International Classes:
G06T7/00
Foreign References:
US20130188834A12013-07-25
US20130329957A12013-12-12
US20050200806A12005-09-15
US6553281B12003-04-22
CN102176755A2011-09-07
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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