NDLI: Multiscale deformable registration using edge preserving scale space for adaptive radiation therapy

Content Provider	IEEE Xplore Digital Library
Author	Dengwang Li Xiuying Wang Hongjun Wang Yong Yin Feng, D.D.
Copyright Year	2010
Description	Author affiliation: Biomedical & Multimedia Information Technology Research Group, University of Sydney, Australia (Xiuying Wang; Feng, D.D.) \|\| School of Information Science and Engineering, Shandong University, China (Dengwang Li; Hongjun Wang; Yong Yin)
Abstract	Registration of planning images with daily images is an important component for adaptive radiation therapy (ART). In this paper, a multiscale deformable registration framework is proposed by combining edge preserving scale space with the free form deformation (FFD) for registration of planning computed tomography (CT) images with daily cone beam CT (CBCT) images. The edge preserving scale space which is able to select edges and contours of an image according to their geometric size is derived from the total variation model with the L1 norm (TV-L1). At each scale, the selected edges and contours are sufficiently strong to drive the deformation using the FFD grid, then the deformation fields are gained by a coarse to fine manner. Furthermore, for automated registration we design an optimal estimation of the TV-L1 parameter by minimizing the defined offset. The experiments on CT and CBCT images show accuracy and robustness when compared to traditional methods.
Starting Page	4409
Ending Page	4412
File Size	852684
Page Count	4
File Format	PDF
ISBN	9781424479924
ISSN	15224880
e-ISBN	9781424479948
e-ISBN	9781424479931
DOI	10.1109/ICIP.2010.5653345
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Hong Kong
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image edge detection Computed tomography Biomedical imaging Planning Image resolution Image registration Biomedical applications of radiation cone beam CT image registration edge preserving multiscale free form deformation
Content Type	Text
Resource Type	Article

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