| 摘要 |
A method of compressing a block (2) of multisensory data. The block comprises at least one frame comprising a plurality of different types of data. There are stored quality settings (7) for each type of data and these include parameters determining the level of compression for that type of data in the block. Each type of data in the block is subjected to compression in accordance with the quality settings to produce a compressed bock of multisensory data (11). A package of data is (10) is created which includes the compressed block and a header (12) which identifies the compression technique and includes the respective parameters used, for compressing each type of data. A number of packages are then subjected to inter- package compression to create a final package (14). This combines the individual packages, but the headers have been replaced by mini headers (15) which now contain only the parameters for the individual compression of the data types. The final package (14) has a main header (16), which contains temporal compression parameters, as well as data identifying the types of compression applied to the different types of data of the individual packages in the final package. |
