Image compression apparatus and method, and program and recording medium
US7590294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Nov 29, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image compression apparatus and method which compression-encode an input moving image signal according to a JPEG2000 system and record the acquired encoded code stream in an MXF file, are provided. The image compression apparatus includes an encoding unit that compression-encodes each frame constituting an input moving image signal according to a JPEG2000 system to generate an encoded code stream for each frame, a file header generating unit that temporarily generates a file header of the MXF and records at least information for identifying a JPEG2000 system and size information of each encoded code stream generated by the encoding unit in the file header, a file body generating unit that records each encoded code stream generated by the encoding unit in the file body of the MXF, and a file generating unit that generates an MXF file at least from the data recorded in the file header and the data recorded in the file body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.