DCT compression using Golomb-Rice coding
US7782960B2 · kind B2 · utility
0Cited by
9References
40Claims
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Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for encoding quantized frequency represented data, the data including zero and non-zero represented data. For zero represented data, a zero run length is determined. A Golomb parameter is determined as a logarithmic function of the zero run length. A quotient is encoded as a function of the zero run length and the Golomb parameter. A remainder is encoded as a function of the zero run length, the Golomb parameter and the quotient. The coded quotient and the coded remainder are concatenated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.