Prediction intra-mode selection in an encoder
US7751478B2 · kind B2 · utility
38Cited by
11References
22Claims
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Key dates
| Filing date | Jan 21, 2005 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | May 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A prediction mode for encoding data is selected using a reduced number of rate-distortion cost computations. This reduction in rate-distortion cost computations is caused by filtering the number of potential intra prediction modes based on two criteria. First, the number of potential prediction modes is reduced based on at least one characteristic of a quantization procedure performed during the encoding procedure. Second, the number of potential prediction modes is reduced based on an error value calculated for each of the potential prediction modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.