Method and system for fingerprinting digital video object based on multiresolution, multirate spatial and temporal signatures
US8204314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2007 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/46
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for generating a spatial signature for a frame of a video object. The method includes obtaining a frame associated with a video object, and dividing the frame into a plurality of blocks. The plurality of blocks corresponds to a plurality of locations respectively, each of the plurality of blocks includes a plurality of pixels, and the plurality of pixels corresponds to a plurality of pixel values respectively. Additionally, the method includes determining a plurality of average pixel values for the plurality of blocks respectively. Each of the plurality of blocks corresponds to one of the plurality of average pixel values. Moreover, the method includes processing information associated with the plurality of average pixel values and determining a plurality of comparison values for the plurality of blocks respectively based on at least information associated with the plurality of average pixel values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.