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Proceedings Paper

Effects of spatial resolution on image registration
Author(s): Can Zhao; Aaron Carass; Amod Jog; Jerry L. Prince
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Paper Abstract

This paper presents a theoretical analysis of the effect of spatial resolution on image registration. Based on the assumption of additive Gaussian noise on the images, the mean and variance of the distribution of the sum of squared differences (SSD) were estimated. Using these estimates, we evaluate a distance between the SSD distributions of aligned images and non-aligned images. The experimental results show that by matching the resolutions of the moving and fixed images one can get a better image registration result. The results agree with our theoretical analysis of SSD, but also suggest that it may be valid for mutual information as well.

Paper Details

Date Published: 21 March 2016
PDF: 9 pages
Proc. SPIE 9784, Medical Imaging 2016: Image Processing, 97840Y (21 March 2016); doi: 10.1117/12.2217322
Show Author Affiliations
Can Zhao, Johns Hopkins Univ. (United States)
Aaron Carass, Johns Hopkins Univ. (United States)
Amod Jog, Johns Hopkins Univ. (United States)
Jerry L. Prince, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 9784:
Medical Imaging 2016: Image Processing
Martin A. Styner; Elsa D. Angelini, Editor(s)

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