Scene-change detector for a moving image composed of a plurality of frames
US5815217A · kind A · utility
20Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1997 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Jan 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/107
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scene-change detector is disclosed which detects a scene-change of a moving image composed of a plurality of frames. In the apparatus, a moving image is encoded based on the correlation between frames or inside a frame. The energy of an estimation error between frames in the case of encoding is operated by image elements. The energy is totaled by frames, and when the totaled value is larger than a specified value, a signal expressing a scene-change is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.