Method for optimizing image motion estimation
US5329318A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | May 13, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for performing motion estimation in a system having a test image and a plurality of candidate images. A candidate image is selected and the difference between the test image and the selected candidate image is determined. The motion of an image is estimated according to this differencing and a determination is made of the duration of the motion estimation process in the system of the present invention. The candidate image selection, the differencing and the motion estimation are then repeated according to the duration determination. The duration determination may be a determination of a time duration or a determination of a number of machine cycles. The system is adapted to iteratively decrease a measurement of the error between the test image and selected candidate images as these actions are repeated. When the error stops decreasing and begins increasing the assumption is made in the system of the present invention that a best match has been determined. Thus a best match is iteratively determined unless a time out occurs first.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.