| 摘要 |
A two dimensional pattern such as a movement matrix generated in an inter-frame video coder is classified by forming a weighted sum modulo x of a set of values representing the pattern. The values may be pattern element values, or quantised representations of groups of elements. The weighted sum is used to access a look-up table containing class identification words. Optionally, motion vectors may be generated by comparing class identification words derived from successive frames of a picture. |
