Processing of video image
US9225989B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a video image processor that is configured to compare a single frame included in the received video signal with a preceding processed frame so as to detect changes. In order to enable the video being compressed in as compact a format as possible the processor is configured to detect changes by dividing the pixels of a single frame into movement blocks and to detect the movement block as changed if in said movement block there is a given number of pixels whose colour value change as compared with the corresponding pixels of the preceding processed frame exceeds a predetermined threshold, to exchange the colour values of the pixels of the unchanged movement blocks in the frame under process for predetermined values and to generate a signal that indicates the changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.