Video data compression
US6683910B1 · kind B1 · utility
3Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video data compression apparatus for compressing images of an input video signal on a block-by-block basis comprises a block analyser for analysing each block of an image to be compressed to detect a degree of difference between pixels within that block; a data quantity allocator for allocating target output data quantities for the compression of each block, the target data quantities being dependent on the detected degrees of pixel difference of the blocks; and a data compression encoder for compressing each block in accordance with the target output data quantity associated with that block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.