Using motion-based features to match video sequences
US10997427B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2528
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is performed at a computing system having one or more processors and memory. The method includes receiving a first video clip having three or more image frames and computing a first hash pattern, including: (i) computing a temporal sequence of differential frames and (ii) for each differential frame: identifying a respective plurality of feature points and computing a respective hash value that represents spatial positioning of the respective feature points with respect to each other. The method includes receiving a second video clip having three or more image frames and computing a second hash pattern by applying steps (i) and (ii) to the three or more image frames. The method includes computing a distance between the first hash pattern and the second hash pattern and determining that the first and second video clips match when the computed distance is less than a threshold distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.