Combined spline and block based motion estimation for coding a sequence of video images
US6295377A · kind A · utility
60Cited by
8References
8Claims
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Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an coder for producing a bitstream representative of a sequence of video images, a previous image is registered with a current image using spline-based registration to produce estimated motion vectors. The estimated motion vectors are used to match blocks of the previous image and the current image to produce translation vectors. The translation vectors compensate for motion while encoding the sequence as a bitstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.