Motion vector detection system
US6414995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/57
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a motion vector detection method and system for detecting a motion vector for motion compensation in moving picture compression. The motion vector detection system reduces the amount of operations without degrading the quality of an image. A vector memory stores a motion vector having been obtained. A predicted motion vector calculator predicts the motion vector of a block to be predicted based upon the motion vector of a block adjacent to the block to be predicted. The search range determiner determines a search range based upon the motion vector predicted. The motion vector detector performs block matching within the search range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.