Enhanced contrast for object detection and characterization by optical imaging
US8693731B2 · kind B2 · utility
106Cited by
15References
16Claims
0Family size
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Key dates
| Filing date | Jan 16, 2013 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Jan 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Enhanced contrast between an object of interest and background surfaces visible in an image is provided using controlled lighting directed at the object. Exploiting the falloff of light intensity with distance, a light source (or multiple light sources), such as an infrared light source, can be positioned near one or more cameras to shine light onto the object while the camera(s) capture images. The captured images can be analyzed to distinguish object pixels from background pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.