Moving image encoding method and apparatus, and moving image decoding method and apparatus
US6415055B1 · kind B1 · utility
51Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1995 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/895
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A moving image signal encoding and decoding method to enhance coding efficiency. In motion compensation predictive coding a moving image signal, in an inter picture distance calculation circuit 10, a distance for a time preceding past reference picture and a distance for a time following future reference picture are calculated by the video signal of a predetermined picture unit, and in a predictive mode determination circuit 8, motion compensation predictive coding, which is applied to the video signal of a predetermined picture unit, is selected in accordance with the calculated distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.