- 专利标题: Camera-only-localization in sparse 3D mapped environments
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申请号: US16854590申请日: 2020-04-21
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公开(公告)号: US11417017B2公开(公告)日: 2022-08-16
- 发明人: Hrushikesh Tukaram Garud , Deepak Poddar , Soyeb Noormohammed Nagori
- 申请人: TEXAS INSTRUMENTS INCORPORATED
- 申请人地址: US TX Dallas
- 专利权人: TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人: TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址: US TX Dallas
- 代理商 Brian D Graham; Charles A. Brill; Frank D. Cimino
- 主分类号: G06T7/00
- IPC分类号: G06T7/00 ; G06T7/73 ; G01C21/30 ; B60R1/00 ; G06V10/46
摘要:
Techniques for localizing a vehicle including obtaining an image from a camera, identifying a set of image feature points in the image, obtaining an approximate location of the vehicle, determining a set of sub-volumes (SVs) of a map to access based on the approximate location, obtaining map feature points and associated map feature descriptors associated with the set of SVs, determining a set of candidate matches between the set of image feature points and the obtained map feature points, determining a set of potential poses of the camera from candidate matches from the set of candidate matches and an associated reprojection error estimated for remaining points to select a first pose of the set of potential poses having a lowest associated reprojection error, determining the first pose is within a threshold value of an expected vehicle location, and outputting a vehicle location based on the first pose.
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