A novel, optimized cordic core for phase correlation motion estimation

Author

Molino, Andrea ; Vacca, Fabrizio

Author_Institution

Dipt. di Elettron., Politec. di Torino, Turin, Italy

fYear

2005

fDate

4-8 Sept. 2005

Firstpage

1

Lastpage

4

Abstract

This paper describes a CORDIC?based architecture to efficiently compute the phase difference between two complex numbers. The problem of fast phase difference computation is central in many signal processing algorithms. Our main focus has been posed on the Phase Correlation technique applied to Motion Estimation. A reduced complexity solution is proposed and specifically tailored to suit the application needs. The presented algorithm has been completely implemented in 0.25 μm standard-cell CMOS technology. As far as the performance are concerned the designed core outperforms a recently designed solution by more than 50% under area and energy standpoints.

Keywords

CMOS integrated circuits; correlation theory; motion estimation; signal processing; CORDIC core; complementary metal oxide semiconductor; coordinate rotation digital computer; motion estimation; phase correlation technique; phase difference; signal processing algorithm; size 25 mum; standard-cell CMOS technology; Computer architecture; Correlation; Equations; Estimation; Motion estimation; Registers; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference, 2005 13th European

Conference_Location

Antalya

Print_ISBN

978-160-4238-21-1

Type

conf

Filename

7078408