Method and system for calibrating a velocimetry system
US10186051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2017 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for calibrating a velocimetry system, the velocimetry system including at least one camera for imaging an illuminated volume comprising moving particles according to at least two different fields of view, comprising: receiving preliminary imaging equations; simultaneously acquiring sets of images of the illuminated volume from the fields of view; voxelizing the illuminated volume; dividing each voxelized volume into interrogation volumes and generating templates images of each interrogation volume for each field of view using the preliminary imaging equations, identifying a match between given clusters of particles in the corresponding template image and corresponding clusters of particles in the corresponding set of images; determining position disparities between the given clusters of particles within the template image and the corresponding clusters of particles within the set of images; and for each field of view, modifying the corresponding preliminary imaging equations based on the determined disparities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.