Adaptive interframe/intraframe block coding method and apparatus
US5387938A · kind A · utility
20Cited by
8References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 2, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Dec 2, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image coding method, a picture is divided into blocks composed of adjacent plural pixels, and a reference picture is used to predict the picture to be coded. A block including an image region not existing in the reference picture, i.e. newly appearing in the picture to be coded by the movement of an object included in the picture, is detected as an independent block, and the independent block is coded independently, without prediction from the reference picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.