Method and apparatus for motion projection error concealment in block-based video
US8391363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2006 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/895
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided a method and apparatus for block-based error concealment. The apparatus includes an error concealment module for concealing a current block in a lost picture of a video sequence by projecting positions of at least one block in a correctly received picture of the video sequence to a position of the current block in the lost picture using motion vectors of the at least one block in the correctly received picture so as to obtain a resultant projection, and selecting one of the at least one block in the correctly received picture based upon an amount of overlap in the resultant projection. The current block in the lost picture is then concealed using a motion vector of the selected one of the at least one block in the correctly received picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.