Fast motion estimation based on spatio-temporal Gabor filters: Parallel implementation on multi-DSP

The aim of our work is to implement a system of motion estimation in image sequences processing on DSP's : fast motion estimation based on Gabor spatio-temporal filters. Our approach consists to calculate optical flow using a energy-based method, named combined filtering which associates the energetic responses of Gabor spatio-temporal filters organized in triads. For this purpose, we applicate a technique developed by the Laboratory LIS in France, inspired from the architecture of Heeger. To reduce the computation time, Rie present also a parallel implementation of the algorithm on a multi-DSP architecture using SynDEx tool which is a programming environment to generate optimized distributed real-time executives. We show that an acceleration of factor 1.86 has been obtained.