Preparation systems for efficiently generating alpha mattes and modified digital videos utilizing polarized light
US12387410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Feb 15, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to systems, non-transitory computer-readable media, and methods for efficiently automating the preparation of accurate alpha matte animations and modified digital videos utilizing polarized light. For example, the disclosed systems obtain a plurality of polarized digital videos portraying an animation of a foreground subject backlit by a polarized light source. In some embodiments, the disclosed systems generate a plurality of corrected polarized digital videos by adjusting intensity values of the plurality of polarized digital videos based on intensity differences across the plurality of polarized digital videos. The disclosed systems generate an alpha matte animation comprising a plurality of alpha mattes from the plurality of corrected polarized digital videos or from the plurality of polarized digital videos. Utilizing the alpha matte animation, the disclosed systems generate a modified digital video by combining the animation of the foreground subject and a replacement background.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.