Detection of tooth condition using reflectance images with red and green fluorescence
US9870613B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 5, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Jan 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for imaging a tooth. The method illuminates the tooth and acquires reflectance image data and illuminates the tooth and acquires fluorescence image data from the tooth. The acquired reflectance and fluorescence image data for the tooth are aligned to form aligned reflectance and fluorescence image data. For one or more pixels of the aligned reflectance and fluorescence image data, at least one feature vector is generated, having data derived from one or both of the aligned reflectance and fluorescence image data. The aligned reflectance and fluorescence image data and the at least one feature vector are processed using one or more trained classifiers obtained from a memory that is in signal communication with the computer. Processing results indicative of tooth condition are displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.