Method and apparatus for video signal encoding with motion compensation
US4232338A · kind A · utility
23Cited by
2References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 8, 1979 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for encoding a video signal wherein the prediction errors for previously encoded pels are evaluated using motion compensation and frame difference predictions. Each present pel intensity value is then predicted using the technique which produced the smaller prediction error sum. Prediction errors for the present pel are encoded, together with address information, if the error exceeds a threshold value. The motion compensated prediction utilizes a displacement estimate which is recursively updated. A decoder is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.