Signal processing system
US7440502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jan 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems are disclosed for a video system. In a first exemplary embodiment, the video system comprises a video processing circuit that receives a picture and provides video compression by using an optimal macroblock mode of operation, the optimal macroblock mode of operation being identified by processing at least one macroblock of the picture, the processing being performed independent of other macroblocks contained in the picture. Additionally, the video processing circuit comprises a mode selection circuit that identifies the optimal macroblock mode of operation by using a rate-distortion model. The rate-distortion model incorporates an overall macroblock mode distortion D that is defined as the sum of DAC a distortion due to AC coefficients, and DDC a distortion due to DC coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.