ICASSP 2006 - May 15-19, 2006 - Toulouse, France

Technical Program

Paper Detail

Paper:IMDSP-P13.5
Session:Image Modeling
Time:Thursday, May 18, 16:30 - 18:30
Presentation: Poster
Topic: Image and Multidimensional Signal Processing: Modeling
Title: TIGHTER PERFORMANCE BOUNDS ON IMAGE REGISTRATION
Authors: Min Xu, Pramod Varshney, Syracuse University, United States
Abstract: Image registration is a fundamental and important task in image processing. It essentially estimates a transformation that aligns two images. Cramer Rao Lower bound has recently been used to establish the performance limit of image registration algorithms. However, it is known to be a weak lower bound for some problems. In this paper, we analyze the mean square error performance of transformation estimation in image registration problems We focus on rigid body transformations, and derive a set of tighter alternatives, namely the Bhattacharya bound and the Ziv-Zakai bound. Experimental results demonstate the validity of our performance bounds.



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