Orientation invariant feature detection system and method for unstructured low-quality video
US6970579B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | May 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/162
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for detecting features in video from business meetings and video teleconferencing systems can use color, motion, morphological (shape) filtering and a set of heuristic rules to determine possible features in the scene. One embodiment includes obtaining a first video frame of images and a second video frame of images, performing a luminance conversion on the first video frame of images and the second video frame of images, performing a motion filter operation on the converted first and second frames of images, performing a chrominance normalization on the second video frame of images, performing a color filter operation on the normalized second video frame of images, and processing the first and second frames of video images after the motion filter and color filter operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.