FPGA Design for Statistics-Inspired Approximate Sum-of-Squared-Error Computation in Multimedia Applications

This brief introduces a low-cost hardware design for approximate squaring functions which preserve maximum information content of the signals in template-matching applications. Analysis of signal statistics for two example applications, i.e., motion estimation and disparity estimation, is presented. This information is then specifically incorporated in the hardware design process to develop approximate squarers which outperform existing designs …