Video coding method and video coding apparatus
US6798837B1 · kind B1 · utility
35Cited by
13References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding method and apparatus realize that a calculation amount required to perform a converting process operation of compression formats can be reduced, and also deterioration in an image quality, which is caused by this compression format converting process operation, can be reduced. A video converting unit includes added information processing means for using added information contained in an input bit stream in coding operation. This added information involves a motion vector, a motion prediction difference signal, a quadrature converting coefficient, and a quantizing value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.