Method and device for compressing data representative of a volumetric three-dimensional scene with a view to real-time decompression for online viewing
US12267478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2021 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | May 27, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for compressing a volumetric video stream comprising a plurality of frames, each associated with a mesh and a texture, with groups of frames being defined, each comprising a key frame and inter frames having meshes defined with respect to the mesh of the corresponding key frame, the method comprising: a step of compressing information representative of the textures, including, for each frame group, steps of block compressing the information representative of the textures of each of the frames, thus defining blocks of pixels; determining first blocks which can form a composite texture of the key frame and second blocks which can modify this composite texture through iterative substitutions so as to form approximate inter-frame textures; and encoding the inter-frame textures on the basis of the composite texture of the key frame and the second blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.