Invention Grant
- Patent Title: Methods and devices for binary entropy coding of point clouds
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Application No.: US17280753Application Date: 2019-10-02
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Publication No.: US11900641B2Publication Date: 2024-02-13
- Inventor: Sébastien Lasserre
- Applicant: BlackBerry Limited
- Applicant Address: CA Waterloo
- Assignee: Malikie Innovations Limited
- Current Assignee: Malikie Innovations Limited
- Current Assignee Address: IE Dublin
- Agency: Conley Rose, P.C.
- Agent J. Robert Brown, Jr.
- Priority: EP 290113 2018.10.02
- International Application: PCT/EP2019/076711 2019.10.02
- International Announcement: WO2020/070192A 2020.04.09
- Date entered country: 2021-03-26
- Main IPC: G06T9/40
- IPC: G06T9/40 ; G06F17/18 ; H03M7/30 ; H04N19/105 ; G06T9/00 ; G06T17/10 ; H04N19/13 ; H04N19/169 ; H04N19/46 ; H04N19/96

Abstract:
Methods and devices for encoding a point cloud. A bit sequence signalling an occupancy pattern for sub-volumes of a volume is coded using binary entropy coding. For a given bit in the bit sequence, a context may be based on a sub-volume neighbour configuration for the sub-volume corresponding to that bit. The sub-volume neighbour configuration depends on an occupancy pattern of a group of sub-volumes of neighbouring volumes to the volume, the group of sub-volumes neighbouring the sub-volume corresponding to the given bit. The context may be further based on a partial sequence of previously-coded bits of the bit sequence.
Public/Granted literature
- US20210350583A1 Methods and Devices for Binary Entropy Coding of Point Clouds Public/Granted day:2021-11-11
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