Implementing rich color transition curve tracking for applications
US9070192B1 · kind B1 · utility
9Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Aug 30, 2013 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30176
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of finding unique targets arranged in a unique sequence of targets in a color image applies ratio space rich colored filtering to identify a band of pixels that form a transition curve from one rich color to another. A set of transition curves with simple geometric and color properties for the entire image, are compared to a database of target properties to identify a target in an image. The targets are provided on a carrier that is attached to a surface to enable processor to identify the surface location and orientation by the targets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.