Apparatus for effectively compressing video data representing a relatively simple image having strong area correlation
US5148292A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jan 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video data processing apparatus for performing video data compression in which one picture image is divided into a predetermined number of blocks of pixels and video data in each block of pixels are compressed by predetermined processing to thereby reduce the amount of video data representing the image that need be stored in a memory. The processing proceeds by determining if plural blocks consist of the same pixel data and if so, the pixel data for only one block is stored. The pixel data for the other blocks which are not stored but which consist of the same pixel data are obtained by reading out the pixel data of the block which is stored, whereby the amount of data to be stored in a memory is substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.