Predictive coding using spatial-temporal filtering and plural motion vectors
US5317397A · kind A · utility
235Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | May 29, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding apparatus comprises 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.