Sensor-synchronized spectrally-structured-light imaging
US9593982B2 · kind B2 · utility
44Cited by
16References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 8, 2014 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Nov 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.