Apparatus for detecting motion in a video image by comparison of a video line value with an interpolated value
US4639773A · kind A · utility
19Cited by
19References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1985 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion detector for detecting the occurrence of image changes between successive fields of video information includes a signal averager for averaging the video signal from two lines of video signal of one video field and a signal averager for averaging the video signal from three lines of video signal of a successive field. The two average video signals are coupled to comparing means which develops a motion indicating signal when the two average video signals differ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.