Method for improving rate-distortion performance of a video compression system through parallel coefficient cancellation in the transform
US7327786B2 · kind B2 · utility
62Cited by
6References
22Claims
0Family size
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Key dates
| Filing date | Jun 2, 2003 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for improving rate distortion performance of a compression system through parallel coefficient cancellation in a transform comprising the steps of (A) determining a block sum of absolute values for each of a plurality of blocks in a macroblock and (B) setting one or more coefficient values of a block to zero in response to a block sum value of said block being less than a first predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.