| 摘要 |
<p>Methods for compression, decompression and augmentation of a sequence of data records are provided. In particular, a method for electronically compressing and storing a sequence of data records is described, in which each record comprises data fields comprising a given time in the sequence and the position and/or motion of an object at a given time. The method comprises the steps of assigning the records to separate data blocks, each block comprising a single primary record or a group comprising a primary record followed by at least one subsidiary record, with at least one of the blocks being of the type comprising a primary record followed by at least one subsidiary record; and calculating the differences in value between fields of each subsidiary record and values associated with the corresponding fields of the preceding record, and storing relative values related to the calculated differences in a respective compressed subsidiary record; and calculating the differences in value between fields of each primary record after the first and values associated with the corresponding fields of the preceding primary record, and storing relative values related to the calculated differences in a respective compressed primary record, wherein the compressed primary and subsidiary records are stored in electronic memory as a compressed version of the original sequence of data records.</p> |
