Adaptive method and device for sub-band analysis and synthesis
US5844610A · kind A · utility
6Cited by
7References
11Claims
0Family size
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Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/102
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive method for television image encoding by splitting the video image to be transmitted into sub-bands at the time of analysis filtering of the image encoder. These sub-bands are split into a tree-like structure by filtering and decimation. Local adaptive filtering is carried out in the analysis filters of each sub-band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.