Title :
Design and implementation of phase correlation based motion estimator
Author :
Molino, Andrea ; Vacca, Fabrizio ; Masera, Guido
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino
Abstract :
This paper describes an architecture for the efficient computation of motion estimation based on phase correlation (PC). The entire block has been implemented on a Virtex2 FPGA, and particular care has been posed on the throughput requirements in a video coding framework. These tight requirements lead to the need for high performance solutions for both the discrete Fourier transform (DFT) block and the vector normalization engine. The DFT stage has been implemented with a pipelined decimation in time (DIT) flow, while a multiplierless CORDIC-based structure is used for the vector normalization
Keywords :
discrete Fourier transforms; field programmable gate arrays; logic design; motion estimation; video coding; Virtex2 FPGA; discrete Fourier transform; motion estimator; multiplierless CORDIC-based structure; phase correlation; pipelined decimation; vector normalization engine; video coding framework; Computer architecture; Discrete Fourier transforms; Engines; Field programmable gate arrays; Fourier transforms; Motion estimation; Phase estimation; Throughput; Video coding; Video compression;
Conference_Titel :
SOC Conference, 2005. Proceedings. IEEE International
Conference_Location :
Herndon, VA
Print_ISBN :
0-7803-9264-7
DOI :
10.1109/SOCC.2005.1554513
