Movement data compression method based on sparse representation

The invention provides a movement data compression method based on sparse representation. The method comprises the following steps of: firstly, analyzing input movement data to generate a sparse representation dictionary; then, carrying out sparse linear representation on each frame of the movement data based on the sparse representation dictionary; and finally, utilizing a K-SVD algorithm to carry out iterative optimization on the dictionary and the sparse representation. According to the method disclosed by the invention, under the precondition of controlling a reestablishing error into a reasonable range, the higher compression ratio can be achieved and the movement data compression method is particularly suitable for compressing shorter movement data.