Robust point correspondence applied to two- and three-dimensionalimage registration
Guest, E.
Berry, E.
Baldock, R.A.
Fidrich, M.
Smith, M.A.
Sch. of Comput., Leeds Metropolitan Univ.;
This paper appears in: Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publication Date: Feb 2001
Volume: 23,
Issue: 2
On page(s): 165-179
ISSN: 0162-8828
References Cited: 27
CODEN: ITPIDJ
INSPEC Accession Number: 6927557
Digital Object Identifier: 10.1109/34.908967
Current Version Published: 2002-08-07
Abstract
Accurate and robust correspondence calculations are very important
in many medical and biological applications. Often, the correspondence
calculation forms part of a rigid registration algorithm, but accurate
correspondences are especially important for elastic registration
algorithms and for quantifying changes over time. In this paper, a new
correspondence calculation algorithm, CSM (correspondence by sensitivity
to movement), is described. A robust corresponding point is calculated
by determining the sensitivity of a correspondence to movement of the
point being matched. If the correspondence is reliable, a perturbation
in the position of this point should not result in a large movement of
the correspondence. A measure of reliability is also calculated. This
correspondence calculation method is independent of the registration
transformation and has been incorporated into both a 2D elastic
registration algorithm for warping serial sections and a 3D rigid
registration algorithm for registering pre and postoperative facial
range scans. These applications use different methods for calculating
the registration transformation and accurate rigid and elastic alignment
of images has been achieved with the CSM method. It is expected that
this method will be applicable to many different applications and that
good results would be achieved if it were to be inserted into other
methods for calculating a registration transformation from
correspondences
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