Video compression using an iterative correction data coding method and systems
US5812195A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive system and method for data storage and communication which is primarily used for the storage and transmission of large volumes of data, especially video data, over band-limited communication channels. The video coder of the system uses a prediction video signal which is subtracted from the input image to define a processing region in which image blocks of predetermined dimensions have large prediction error. The prediction image is successively improved by iteratively processing large error image blocks until the error is reduced below a predetermined threshold. At different processing iterations and image blocks, different compression techniques can be used to improve the overall system efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.