Multiplier-free implementation of DCT used in image and video processing and compression
US6473534B1 · kind B1 · utility
51Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multiplier-free implementation of an approximation of the DCT used in image and video processing. In accordance with the primary aspect of the present invention, image and video processing is done with no multiplications and a fewer number of operations through the application of a modified Arai, Agui, and Nakajima (AAN) scheme for eight-point DCT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.