Significant scene detection and frame filtering for a visual indexing system
US6137544A · kind A · utility
50Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video indexing system analyzes contents of source video and develops a visual table of contents using selected images. A system for detecting significant scenes detects video cuts from one scene to another, and static scenes based on DCT coefficients and macroblocks. A keyframe filtering process filters out less desired frames including, for example, unicolor frames, or those frames having a same object as a primary focus or one primary focuses. Commercials may also be detected and frames of commercials eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.