Method and apparatus for generating chrominance shape information of a video object plane in a video signal
US5822460A · kind A · utility
38Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 27, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus generates chrominance shape information based on luminance shape information represented by binary values, to thereby describe an object in a video object plane effectively. The apparatus divides the luminance shape information into a multiplicity of sample blocks, a sample block including 2.times.2 pixels, and determines, for each sample block, a chrominance value based on all logic values in a sample block. The chrominance shape information is produced in a form of a matrix based on the chrominance values for all sample blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.