Patent attributes
A method and apparatus for an adaptive systolic array structure is initially configured for motion estimation calculations and optionally reconfigured as the motion estimation algorithm progresses. A scheduling map of the processing element (PE) calculations for a given motion estimation algorithm is generated. A systolic array structure may then be generated from the scheduling map, whereby the size and shape of a processing element array is configured to generate the search pattern that is to be used during the search. In addition, delay elements may be implemented within the systolic array structure, so as to preserve the pixels of a current macroblock that are reused in accordance with the scheduling map. The systolic array structure may also be adapted by the motion estimation algorithm during subsequent search stages to accommodate refinements required by the search strategy.
