Apparatus and method for recognizing color space of a digital video input
US6744917B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2000 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Mar 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/641
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color space detector (30) for recognizing a color space of a digital video input includes a high frequency detector (32) that identifies a presence of either blue data or possible color difference data in color information carried in the digital video input. A data sample correlator (34) is also used to identify a presence of either blue data or color difference data in the color information. Other detectors (36) provide an indication as to the type of color space present on the digital video input. A determinator receives and analyzes the results from the high frequency detector (32), the data sample correlator (34), and the other detectors (36) and generates a control signal in response to these results. The control signal indicates that the color information includes one of red/green/blue data, YCrCb data, or indeterminate data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.