Motion vector selection in television images
US4864394A · kind A · utility
43Cited by
1References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | May 31, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for processing motion vectors associated with a digital television image comprises a vector filter and a vector calculator for deriving a plurality of motion vectors respectively representing the motion of a pixel in the image, a circuit for testing the accuracy of each motion vector by differencing pixels shifted in dependence on the motion vector from two successive fields of the image to a common position in a field interpolated between the two fields, and a vector selector for selecting a motion vector from the plurality in dependence on the testing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.