Invention Grant
- Patent Title: Repositioning method and apparatus in camera pose tracking process, device, and storage medium
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Application No.: US16900634Application Date: 2020-06-12
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Publication No.: US11189037B2Publication Date: 2021-11-30
- Inventor: Xiangkai Lin , Yonggen Ling , Linchao Bao , Wei Liu
- Applicant: Tencent Technology (Shenzhen) Company Limited
- Applicant Address: CN Shenzhen
- Assignee: Tencent Technology (Shenzhen) Company Limited
- Current Assignee: Tencent Technology (Shenzhen) Company Limited
- Current Assignee Address: CN Shenzhen
- Agency: Morgan, Lewis & Bockius LLP
- Priority: CN201810392368.5 20180427
- Main IPC: G06T7/70
- IPC: G06T7/70 ; G06T7/80 ; G06T7/20 ; G06F16/22 ; G06F16/51 ; G06K9/62 ; G06T19/00 ; G06T19/20

Abstract:
This application discloses a repositioning method performed by an electronic device in a camera pose tracking process, belonging to the field of augmented reality (AR). The method includes: obtaining a current image acquired by the camera after an ith anchor image in a plurality of anchor images; selecting a target keyframe from a keyframe database according to Hash index information in a case that the current image satisfies a repositioning condition; performing second repositioning on the current image relative to the target keyframe; and calculating a camera pose parameter of a camera during acquisition of the current image according to a positioning result of the first repositioning and a positioning result of the second repositioning. In a case that there are different keyframes covering a surrounding area of a camera acquisition scene, it is highly probable that repositioning can succeed, thereby improving the success probability of a repositioning process.
Public/Granted literature
- US20200302615A1 REPOSITIONING METHOD AND APPARATUS IN CAMERA POSE TRACKING PROCESS, DEVICE, AND STORAGE MEDIUM Public/Granted day:2020-09-24
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