Low-complexity 2-power transform for image/video compression
US7379500B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Sep 30, 2003 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To encode image and video data using a transform having low computational complexity and high compression efficiency, all elements of the matrix can be expressed with power-of-2 elements, with a template of the matrix approximating a DCT matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.