| 摘要 |
A motion estimation method for an adaptive dynamic search range is provided to solve the problems of reading a large quantity of reference frame data for a search and having an insufficient bandwidth of the dynamic random access memory. The invention uses a component of a motion estimation vector of a predictor and the position of its present macroblock data to determine a predicted position, and the estimation method for an adaptive dynamic search range is carried out to determine the search range, and a uniform distribution quantified hierarchical method is used to reduce the power consumption and area. Therefore, the invention can effectively lower the bandwidth of the dynamic random access memory (compared with the algorithm of a fixed search range) and reduce the overall power consumption and effectively maintain the original compression quality.
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