Method and system for compressing and statistically encoding color video data
US4914508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The method and system of compressing digital color video data in a video communication system utilizes a digital color video signal having three video color components, and the encoding of the color components as compressed color codes in a series of run length and compressed color code combinations. A look up table of compressed color codes representing the most visually significant combinations of three color components may also be modified by a process which involves the determination of a predetermined number of the most visually significant combinations of color components in a picture frame. Line-to-line differences and movement of edges and segments of the picture frames are determined, and frame-to-frame differences are also encoded to reduce the amount of information to a minimum. Further statistical encoding of at least a portion of the run length and color code combinations is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.