Method and device for improving spatial and off-axis display standard conformance
US8228348B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention describes a method for improving the spatial and off-axis conformance of display systems with respect to an enforced greyscale or color display standard. In the display systems, the native transfer curve is obtained for each pixel or zone of pixels, i.e. as a function of position on the display and as a function of viewing-angle. Once that information is available, an optimal conversion scheme from P-value to DDL can be created for each position on the display and this for all possible viewing-angles. In use, the conversion scheme is used to obtain an improved DICOM behavior. This optimization is also done with respect to the viewing-angle, based on a pre-set, selectable or measured viewing angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.