Bidirectional motion estimation in a motion video compression system
US5652629A · kind A · utility
55Cited by
2References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 12, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/43
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and methods for implementing an encoder suitable for use with the motion picture compression. The system includes a motion estimation apparatus which performs temporally interpolative motion estimation. The temporally interpolative motion estimation is performed by first performing unidirectional motion estimation between the current picture and one or more other pictures. The results of the unidirectional motion estimation alone, and not any picture data, are used to perform temporally interpolative motion estimation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.