Video coding method and apparatus that predicts macroblock code length
US6795503B2 · kind B2 · utility
19Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Dec 15, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
As the video signals of macroblocks are coded, they are stored in a buffer. When the total code length of the stored macroblocks exceeds a predetermined value, all but the most recently coded macroblock are output from the buffer as a video packet, and the most recently coded macroblock is coded again. To minimize this occurrence, when each coded macroblock is stored, the code length of the next macroblock is predicted and added to the total length, and if the resulting sum exceeds the predetermined value, all of the coded macroblocks stored in the buffer are output as a video packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.