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Presentation Information     2017-12-11 (14:15)   •  4307

Speaker Johan Öfverstedt  (CBA)
Title A Symmetric Similarity Measure for Gradient-Based Affine Image Registration
Abstract Affine image registration is an important first step in many deformable registration schemes. In order to find a good affine registration, a local optimization algorithm is used together with an image similarity measure. Sum of squared differences, normalized cross correlation, and mutual information have been the most commonly used measures for this purpose but they all share the property of being pixel-based with a small capture region. In this presentation, a distance measure which is less sensitive to the starting position is presented and inital results from a comparative evaluation are discussed.