Video coding apparatus which forms an optimum prediction signal which is designated by a set of motion vectors of separate reference pictures
US5541661A · kind A · utility
13Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Aug 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding apparatus includes a memory for storing a coded picture signal used as a reference picture signal, a vector detecting circuit for detecting, from plural field picture signals or plural frame picture signals which are read out from the memory and the reference picture signals, an optimum motion vector regarding a picture to be coded, a prediction signal producing circuit for subjecting a spatial-temporal filtering to a reference picture designated by the optimum motion vector to produce a prediction signal, and a coding circuit for coding the to-be-coded picture signal on the basis of the prediction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.