Systems and methods for allocating bits to macroblocks within a picture depending on the motion activity of macroblocks as calculated by an L1 norm of the residual signals of the macroblocks
US7406124B1 · kind B1 · utility
4Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Jul 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is related to methods and apparatus that can advantageously be used in a video encoder to improve picture quality, to improve the speed of encoding, and the like. One embodiment of the invention advantageously computes activity measures using an efficient L1-norm, which can advantageously be relatively quickly computed by selected microprocessors. Another embodiment of the invention advantageously allocates bits to macroblocks of a picture based at least in part on the motion activities of the macroblocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.