Apparatus and method for processing video data
US6501853B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/503
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus an method are disclosed for dividing a two-dimensional matrix of pixels into at least first and second areas. For each pixel, it is determined in which the area the pixel is located. Then, the pixels in the first area are processed according to a first processing/compression scheme, and the pixels in the second area are processed according to a second processing/compression scheme. A data bit stream is generated which represents the processed/compressed pixels and their associated areas, and the data bit stream can be stored or transmitted in lieu of the entire matrix of pixels. If desired, the pixels in the first area can be processed less frequently than the pixels in the second area, and the areas themselves can be established in response to the frequency of variations in the pixel values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.