Method for dynamic video magnification
US10217187B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jun 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20104
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The method for dynamic video magnification magnifies small motions occurring simultaneously within large motions. The method involves selecting a region of interest from a video for magnification. The region of interest is warped to obtain a stabilized sequence of frames that discounts large motions. Each frame of the stabilized sequence is decomposed to a foreground layer, a background layer, and an alpha matte layer, and each of the foreground and alpha matte layers is magnified. Then a magnified sequence is generated from the magnified layers using matte inversion. Any image holes in the magnified sequence are filled in using texture synthesis. Finally, the magnified sequence is de-warped to the original space-time coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.