Moving picture encoding method and moving picture encoding apparatus
US6748114B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a moving picture encoding method and a moving picture encoding apparatus of the present invention, after calculating an absolute value of a difference for every corresponding pixel data between continuous two frames, an interframe difference calculation means 13 calculates an average value per frame and an average value per scene of the absolute value of the difference, and a scene change determination means 14 determines that a scene change has occurred, when the average value per frame is more than or equal to a predetermined number times as large as the average value per scene, and in case that the scene change is detected by the scene change determination means 14, a frame type change means 15 changes a frame type so that interframe predictive coding is not conducted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.