Video decoding with error detection and concealment
US8743970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2009 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of decoding input video information is disclosed which includes performing error detection for each video block of a frame, determining whether a scene change occurs for the frame, and when an error is detected in a video block, performing spatial concealment by concealing error of the erroneous video block using neighboring video information within the frame when the erroneous video block is intraframe encoded or when a scene change is detected for the frame, or performing temporal concealment by replacing the erroneous video block with a reference video block from a reference frame when the erroneous video block is interframe encoded and when a scene change is not detected for the frame. The method may further include detecting false frames based on comparing current and new frame number and picture order count values of a new slice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.