System and method for electronic image stabilization
US5629988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/683
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is a system and method for electronic stabilization of a image produced by an electronic imaging device. The input may be any sequence of image frames from an image source, such as a video camera, an IR or X-ray imager, radar, or from a storage medium such as computer disk memory, video tape or a computer graphics generator. The invention can also be used with images from multiple sources when these must be stabilized with respect to one another. The invention uses a feedback loop and second image warp stage to achieve precise image alignment as part of the displacement estimation process. The output of the stabilization system is a modified image sequence in which unwanted components of image motion have been reduced or removed, or in which new motion of a desired form has been introduced. The output may also include information derived from the input sequence, such as estimated frame-to-frame displacement vectors or motion flow fields, and derived image sequences with reduced noise or highlighted change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.