Video data compression system and method
US4536801A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1981 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Oct 1, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K17/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A video data compression system and method for use in minimizing the amount of data necessary to store and recall a black and white video image. An image is obtained by vertically scanning a selected document. The image is then represented by a series of consecutive vertical scans identifying particular sections or cells of the image as black or white. A plurality of consecutive scans are then temporarily stored and analyzed horizontally. Analysis circuitry is utilized to identify certain consecutive black or white sections of the image, repetitions of previous sections of the image or repetitions of certain selectable patterns within the image. The coded output of the analysis circuitry is then stored and may be utilized to reconstruct the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.