Motion picture encoding device and method, motion picture decoding device and method, motion picture recording device, program, and data structure
US8699569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2007 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Dec 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CODEC compresses and encodes a motion picture captured at a high speed of 240 fps frame rate in MPEG format. The CODEC divides pictures in each frame into I pictures and the main frame P pictures and the other sub frame P pictures. In encoding P pictures of the main frame, the CODEC uses I pictures that are adjacent on the time axis or P pictures of other main frames as a reference picture. With a playback device, etc., of its motion picture playback performance of 60 fps, to perform an actual speed playback with the playback time being equal to the picture-capturing time, only the main frame alone is to be subjected to playback, in that case the decoding process of P pictures of the sub frames is not required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.