Apparatus for inserting part of one video image into another video image
US4827344A · kind A · utility
56Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1986 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/272
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Computer generated video objects may be superimposed over a background video image so as to create the illusion of a single composite scene. The leading edge of an object is detected and for a period of time the object and background video signals are mixed. After that period, only the object video is tranmsitted. Upon detection of the object's trailing edge, the two video signals are again mixed for a period of time. After this latter period, only the background video signal is transmitted until another object's edge is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.