Method and apparatus for accomplishing multiple description coding for video
US6920177B2 · kind B2 · utility
9Cited by
11References
23Claims
0Family size
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Key dates
| Filing date | Jan 23, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Feb 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for utilizing temporal prediction and motion compensated prediction to accomplish multiple description video coding is disclosed. An encoder receives a sequence of video frames and divides each frame into non-overlapping macroblocks. Each macroblock is then encoded using either an intraframe mode (I-mode) or a prediction mode (P-mode) technique. Both the I-mode and the P-mode encoding techniques produce an output for each of n channels used to transmit the encoded video data to a decoder. The P-mode technique generates at least n+1 prediction error signals for each macroblock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.