Method and apparatus for processing camera an image produced by a video camera to correct for undesired motion of the video camera
US4959725A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Jul 13, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/6812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for processing a raw video camera signal to identify undesired multidimensional video image motion caused by rotational or translational camera motion in two or three dimensions, and to generate a corrected video camera signal in which such undesired video image motion is reduced. In a preferred embodiment, the apparatus includes a video camera having an oversized image pickup device, four accelerometers mounted in the video camera, and means for processing the accelerometer output signals and the raw video camera output signal to generate a corrected video camera signal. The processing means preferably employs selective clocking to generate a corrected video signal representing a stabilized version of the view of interest. Such a corrected video signal will exclude extraneous visual information (i.e., visual information other than the view of interest), and will be "stabilized" in the sense that it exhibits less image motion than does the draw video camera signal. The preferred embodiment of the invention is capable of efficiently correcting for undesired camera rotation about three orthogonal rotational axes, as well as for undesired camera translations in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.