Quantifying color changes of chemical test pads induced by specific concentrations of biological analytes under different lighting conditions
US11131633B2 · kind B2 · utility
6Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2019 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Mar 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Color quantification of chemical test pads and titration of analytes can be performed under different lighting conditions. In one embodiment, the lighting condition is estimated under which a digital image is captured and utilized to select a set of reference colors from which the quantified color is compared to determine the titration. In another embodiment, a plurality of comparisons are made with different lighting conditions with the result having the highest confidence level being selected to determine the titration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.