NDLI: Robust Multimodal Registration Using Local Phase-Coherence Representations

Content Provider	SpringerLink
Author	Wong, Alexander Orchard, Jeff
Copyright Year	2008
Abstract	Automatic registration of multimodal images has proven to be a difficult task. Most existing techniques have difficulty dealing with situations involving highly non-homogeneous image contrast and a small initial overlapping region between the images. This paper presents a robust multi-resolution method for regis tering multimodal images using local phase-coherence representations. The proposed method finds the transformation that minimizes the error residual between the local phase-coherence representations of the two multimodal images. The error residual can be minimized using a combination of efficient globally exhaustive optimization techniques and subpixel-level local optimization techniques to further improve robustness in situations with small initial overlap. The proposed method has been tested on various medical images acquired using different modalities and evaluated based on its registration accuracy. The results show that the proposed method is capable of achieving better accuracy than existing multimodal registration techniques when handling situations where image non-homogeneity and small overlapping regions exist.
Starting Page	89
Ending Page	100
Page Count	12
File Format	PDF
ISSN	19398018
Journal	Journal of Signal Processing Systems
Volume Number	54
Issue Number	1-3
e-ISSN	19398115
Language	English
Publisher	Springer US
Publisher Date	2008-05-08
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Multimodal registration Non-rigid Local phase-coherence Non-homogeneity Computer Imaging, Vision, Pattern Recognition and Graphics Pattern Recognition Image Processing and Computer Vision Electrical Engineering Circuits and Systems Signal, Image and Speech Processing
Content Type	Text
Resource Type	Article
Subject	Modeling and Simulation Information Systems Theoretical Computer Science Signal Processing Hardware and Architecture Control and Systems Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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