Method and apparatus of quantizing spherical coordinates used for encoding/decoding point cloud geometry data
US12430808B2 · kind B2 · utility
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Key dates
| Filing date | Oct 14, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided methods and apparatus of encoding/decoding a point cloud into/from a bitstream of encoded point cloud data representing a physical object, each point of the point cloud being associated with spherical coordinates representing an azimuthal angle responsive to a capture angle of a sensor that captured the point and a radius responsive of a distance of the point from a referential. The encoding method includes adaptively quantizing a residual error azimuthal angle, derived from the azimuthal angle, based on the radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.