Streaming a light field compressed utilizing lossless or lossy compression
US11501467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2021 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | May 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/597
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A remote device utilizes ray tracing to compute a light field for a scene to be rendered, where the light field includes information about light reflected off surfaces within the scene. This light field is then compressed utilizing lossless or lossy compression and one or more video compression techniques that implement temporal reuse, such that only differences between the light field for the scene and a light field for a previous scene are compressed. The compressed light field data is then sent to a client device that decompresses the light field data and uses such data to obtain the light field for the scene at the client device. This light field is then used by the client device to compute global illumination for the scene. The global illumination may be used to accurately render the scene at the mobile device, resulting in a realistic scene that is presented by the mobile device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.