Target-less calibration of turbid media
US11587212B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 12, 2021 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20224
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A submersible vehicle comprising: an image sensor; a first illuminator; at least one hardware processor operatively coupled with said image sensor and first illuminator, and the at least one hardware processor being configured to: acquire a first image of a scene inside a medium, when there is no object along the line-of-sight (LOS), under illumination from a first location or orientation, acquire a second image of the scene inside the medium, when there is no object along the LOS, under illumination from a second, different location or orientation, and compute attenuation coefficients, one per color channel, based on backscatter in the first and second images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.