Apparatus and method for encoding moving picture
US8144770B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2007 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jan 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are moving picture encoding apparatus and method skipping intra prediction in encoding mode determination using rate-distortion (RD) costs and determining an encoding mode at high speed. The moving picture encoding method includes the steps of: setting the lowest one of rate-distortion costs of macroblocks adjacent to a macroblock to be encoded as a threshold value; setting the lowest one of mode-specific distortion costs obtained by inter prediction for the macroblock to be encoded as an optimum inter mode distortion cost; comparing the threshold value with the optimum inter mode distortion cost; and when the threshold value is larger than the optimum inter mode distortion cost, as a result of the comparison, skipping intra prediction and setting a mode having the optimum inter mode distortion cost as a final encoding mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.