System and method for synthetic depth-of-field effect rendering for videos
US11449968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jan 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20092
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes obtaining, using at least one processor of an electronic device, multiple video frames of a video stream and multiple depth frames corresponding to the multiple video frames. The method also includes generating, using the at least one processor, multiple blur kernel maps based on the multiple depth frames. The method further includes reducing, using the at least one processor, depth errors in each of the multiple blur kernel maps. The method also includes performing, using the at least one processor, temporal smoothing on the multiple blur kernel maps to suppress temporal artifacts between different ones of the multiple blur kernel maps. In addition, the method includes generating, using the at least one processor, blur effects in the video stream using the multiple blur kernel maps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.