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Block matching motion estimation takes a great part of the processing time for video encoding. To accelerate this process is must to reach real time video coding. The best motion vector is obtained by full-search block matching algorithm which has to be usually implemented by hardware. In recent years, several FPGA based designs have been proposed since these devices support high number of process...
In this paper we present a specific CORDIC processor for variable-precision coordinates. This system allows us to specify the precision to perform the CORDIC operation, and control the accuracy of the result, in such a way that re-computation of inaccurate results can be carried out with higher precision. It permits a reliable and accurate evaluation of a wide range of elementary functions. The specific...
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