On the estimation of subpixel motion using phase correlation

Vasileios Argyriou; Theodore Vlachos

doi:10.1117/1.2762230

1 July 2007 On the estimation of subpixel motion using phase correlation

Vasileios Argyriou, Theodore Vlachos

Author Affiliations +

Journal of Electronic Imaging, Vol. 16, Issue 3, 033018 (July 2007). https://doi.org/10.1117/1.2762230

Abstract

We propose a method for obtaining high-accuracy subpixel motion estimates using phase correlation. Our method is motivated by recently published analysis according to which the Fourier inverse of the normalized cross-power spectrum of pairs of images that have been mutually shifted by a fractional amount can be approximated by a two-dimensional sinc function. We propose a modified version of such a function to obtain a subpixel estimate of motion by means of variable-separable fitting in the vicinity of the maximum peak of the phase correlation surface. We demonstrate that our method outperforms, in terms of subpixel accuracy, not only other surface-fitting techniques but also the state-of-the-art in motion estimation using phase correlation including the technique that motivated our work in the first place. Furthermore, our method performs particularly well in the presence of artificially induced additive white Gaussian noise and also offers better motion vector coherence in terms of zero-order entropy.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Vasileios Argyriou and Theodore Vlachos "On the estimation of subpixel motion using phase correlation," Journal of Electronic Imaging 16(3), 033018 (1 July 2007). https://doi.org/10.1117/1.2762230

Published: 1 July 2007

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available