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CONFORMAL IMAGE REGISTRATION BASED ON CONSTRAINED OPTIMIZATION

Published online by Cambridge University Press:  12 January 2021

S. MARSLAND
Affiliation:
School of Mathematics and Statistics, Victoria University of Wellington, Wellington, New Zealand; e-mail: stephen.marsland@vuw.ac.nz.
R. I. MCLACHLAN
Affiliation:
School of Fundamental Sciences, Massey University, Palmerston North, New Zealand; e-mail: r.mclachlan@massey.ac.nz.
M. Y. TUFAIL*
Affiliation:
Department of Mathematics, NED University of Engineering and Technology, Karachi, Pakistan.
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Abstract

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Image registration is the process of finding an alignment between two or more images so that their appearances match. It has been widely studied and applied to several fields, including medical imaging and biology, where it is related to morphometrics. In this paper, we present a construction of conformal diffeomorphisms which is based on constrained optimization. We consider a set of different penalty terms that aim to enforce conformality, based on discretizations of the Cauchy–Riemann equations and geometric principles, and demonstrate them experimentally on a variety of images.

MSC classification

Information

Type
Research Article
Copyright
© Australian Mathematical Society 2021