Apparatus and method for multiscale zerotree entropy encoding
US6269192A · kind A · utility
119Cited by
5References
24Claims
0Family size
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Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/1883
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a concomitant method is disclosed for encoding wavelet trees to generate bitstreams with flexible degrees of spatial, quality and complexity scalabilities. The zerotree entropy (ZTE) encoding method is extended to achieve a fully scalable coding method by implementing a multiscale zerotree coding scheme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.