Mapping pulse propagation
US11825206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2022 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | May 28, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0079
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Examples of the disclosure relate to at least apparatus, methods, and computer programs, configured to control capture of two images of an area, across which a pulse propagates, using different shutter scanning directions. Either the images are converted into pulse-phase maps of the area and a pulse-phase difference map obtained which identifies differences between the pulse-phase maps of the area, or a colour difference map is obtained which identifies differences between the two images and the colour difference map is converted into a pulse-phase difference map. A shutter-time difference map is obtained which identifies differences between capture times of corresponding locations in the two images. Using the shutter-time difference map, the pulse-phase difference map is corrected to obtain a map of pulse-phase changes which have occurred over a duration of a shutter scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.