Iterative method for estimating motion content in video signals using successively reduced block size
US5557341A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1993 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Oct 8, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A block matching method for estimating motion contents in a video signal is presented. The motion is represented by a two-dimensional motion vector field, including horizontal and vertical vector components. The method can be used in a wide range of applications, has high spatial and motion vector resolution, is robust under adverse signal conditions, and is cost effective in real-time implementations. The block matching method includes iterative processing with different block sizes from coarse to fine with prediction of motion vectors from surrounding blocks. Resolution of each iteration's block size is preserved at the same resolution as the original input video signal for which the motion vector field is being generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.