Methods and systems for encoding and decoding picture signals and related picture-signal recording media
US5574504A · kind A · utility
78Cited by
11References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Aug 22, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Picture-signal encoding methods and systems are disclosed for encoding interlaced scan picture signals. A first one of a pair of interlaced odd and even fields of one frame, as well as a field of another frame are encoded. The second one of the pair of interlaced odd and even fields is encoded such that at least a portion is encoded through bidirectional prediction from three fields. Decoding methods and systems are disclosed for decoding the picture-signal encoded as described above. Record media storing the encoded signals are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.