Moving color test pattern
US9591371B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2007 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4854
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Test patterns and associated techniques for testing the fidelity of color processing are disclosed. One set of embodiments provide a test pattern that exhibits a large number of spatial interactions (e.g., edges) between colors corresponding to triples of constant value RGB primaries that incorporate a specific primary. Another set of embodiments provide an animated sequence of test patterns that exhibit temporal interactions between the colors identified above. Yet another set of embodiments provide a test pattern comprising a plurality of zones, where distinct subsets of the zones are configured to exhibit independent visual changes in response to adjustments of specific color processing controls. Using these test patterns, users may more easily test the fidelity of color processing (such as color dematrixing), and may more easily calibrate color processing controls accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.