Process for the identification of identical television or video images
US7006158B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Mar 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/44
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to be able to identify television or video images (V1,V2) as identical, predeterminable parameters (H1, H2) of the images (V1, V2) to be tested are compared with each other. Images whose parameters, preferably the average brightness (H1, H2), fall within a predeterminable tolerance range, are identified as identical images. Thus, e.g. in a television reception equipment, particularly a mobile one, the images of all receivable transmitters are tested. Images identified as identical are allocated to the same transmitters or the same programs, the channels of which are stored as alternative channels. When there is bad reception or bad image quality an alternative channel is switched to.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.