Method and apparatus for efficient transmission and decoding of quantization matrices
US7373009B2 · kind B2 · utility
20Cited by
3References
21Claims
0Family size
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Key dates
| Filing date | Feb 9, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Jul 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for encoding quantization matrices comprising the steps of (A) signaling whether values of a luma quantization matrix are determined by either (i) a first set of custom values or (ii) a set of standardized default values, (B) transmitting the first set of custom values when the values of the luma quantization matrix are determined by the first set of custom values and (C) signaling whether values of a first chroma component quantization matrix are determined by either (i) a second set of custom values or (ii) the values of the luma quantization matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.