Comparison of popular non-rigid image registration techniques and a new hybrid mutual information-based fluid algorithm
Fookes, Clinton B. & Maeder, Anthony J. (2003) Comparison of popular non-rigid image registration techniques and a new hybrid mutual information-based fluid algorithm. In 2003 APRS Workshop on Digital Image Computing, WDIC 2003, 7 February, 2003, Brisbane, Australia.
Recently there has emerged a need to compute multimodal non-rigid registrations in a lot of clinical applications. To date, the viscous fluid algorithm is perhaps the most adept method at recovering large local misregistrations that exist between two images. However, this model can only be used on images from the same modality as it assumes similar intensity values between images. This paper presents a solution to this problem by proposing a hybrid non-rigid registration using the viscous fluid algorithm and mutual information (MI). The MI is incorporated via the use of a block matching procedure to generate a sparse deformation field which drives the viscous fluid algorithm. This algorithm is compared to two other popular local registration approaches, namely Gaussian convolution and the thin-plate spline warp. Results show that the thin-plate spline warp and the MI-Fluid approach produce comparable results. However, Gaussian convolution is the superior choice, especially in controlled environments.
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|Item Type:||Conference Paper|
|Additional Information:||The contents of this conference can be freely accessed online via the conference's web page (see hypertext link).|
|Keywords:||Non-rigid image registration, Mutual Information, Viscous Fluid|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Computer Vision (080104)|
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Image Processing (080106)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2003 (please consult author)|
|Deposited On:||17 Feb 2009 15:33|
|Last Modified:||09 Jun 2010 23:23|
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