Method including lossless compression of luminance channel and lossy compression of chrominance channels
US6650773B1 · kind B1 · utility
29Cited by
8References
27Claims
0Family size
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Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Compression of a digital image is performed by bit-depth truncating a luminance channel of the digital image and performing lossless compression on the bit-depth truncated luminance channel; and performing lossy compression on chrominance channels of the digital image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.