System and method for rate-distortion optimized data partitioning for video coding using backward adaptation
US7010037B2 · kind B2 · utility
39Cited by
1References
29Claims
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Key dates
| Filing date | Nov 15, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Jan 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed that provide a simple and efficient layered video coding technique using a backward adaptive rate-distortion optimized data partitioning (RD-DP) of DCT coefficients. The video coding system may include an rate-distortion optimized data partitioning encoder and decoder. The RD-DP encoder adapts the partition point block-by-block which greatly improves the coding efficiency of the base layer bit stream without explicit transmission thereby saving the bandwidth significantly. The RD-DP decoder can also find the partition location in backward-fashion from the decoded data.
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