Methods of scene change detection and fade detection for indexing of video sequences
US6449392B1 · kind B1 · utility
53Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1999 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Jan 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to methods of abrupt scene change detection and fade detection for indexing of MPEG-2 and MPEG-4 compressed video sequences. Abrupt scene change and fade-detection techniques applied to signals in compressed form have reasonable accuracy and the advantage of high simplicity since they are based on entropy decoding and do not require computationally expensive inverse Discrete Cosine Transformation (DCT).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.