- 专利标题: METHODS AND DEVICES FOR BINARY ENTROPY CODING OF POINTS CLOUDS
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申请号: EP18290112.4申请日: 2018-10-02
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公开(公告)号: EP3514966A1公开(公告)日: 2019-07-24
- 发明人: Lasserre, Sébastien
- 申请人: BlackBerry Limited
- 申请人地址: 2200 University Avenue East Waterloo, Ontario N2K 0A7 CA
- 专利权人: BlackBerry Limited
- 当前专利权人: BlackBerry Limited
- 当前专利权人地址: 2200 University Avenue East Waterloo, Ontario N2K 0A7 CA
- 代理机构: Duling, Björn
- 优先权: EP18305037 20180118
- 主分类号: H03M7/40
- IPC分类号: H03M7/40 ; G06T9/40
摘要:
Methods and devices for encoding or decoding a point cloud. A bit sequence signalling an occupancy pattern for sub-volumes of a volume is coded using entropy coding. For a current sub-volume, probabilities of respective entropy coders for entropy coding the occupancy pattern may be selected based on occupancy data for a plurality of neighbouring sub-volumes of the current sub-volume and on occupancy data for subdivisions of the neighbouring sub-volumes.
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