NDLI: A Smooth and Stable Fly-Through Scheme for Virtual Navigation of 3D CT Colonography

Content Provider	IEEE Xplore Digital Library
Author	Dehmeshki, J. Amin, D.
Copyright Year	2007
Description	Author affiliation: Kingston Univ., Kingston upon Thames (Dehmeshki, J.; Amin, D.)
Abstract	This paper presents an efficient algorithm for virtual fly-through of CT-colonography. The algorithm first segments colon using a fuzzy based region growing technique. Then, a skeletonization method based on a voxel coding scheme to define an optimum path for virtual camera is applied on segmented colon. The optimum path is a connected and one-voxel-thin centerline of a 3D object, which provides the location of a virtual camera for the fly-through. Finally, a smooth and stable virtual camera view direction on the optimum path is recursively calculated based on updating the view direction of the current site by adding a deviation vector that is determined by the weighted average of the deviation vector of the next n voxels with respect to the current location. The proposed system was applied on several CT colonography data. The experimental result was visually inspected by a qualified radiologist and it demonstrates the efficiency of the algorithm.
Starting Page	1
Ending Page	4
File Size	366758
Page Count	4
File Format	PDF
ISBN	9781424407217
DOI	10.1109/3DTV.2007.4379385
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-07
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Virtual colonoscopy 3D Visualization Skeletonization Virtual Fly-through Radio navigation Camera direction Colonography Topology Image segmentation Cameras Skeleton Iterative algorithms Colon Biomedical imaging
Content Type	Text
Resource Type	Article

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