Paper Info
Title
A method for specifying unobserved regions in virtual endoscopy system
Abstract
This paper describes a method for specifying regions that a user did not observe during the fly-through when using the virtual endoscopy system (VES) and presenting unobserved regions after finishing the examination. When a doctor diagnoses with the VES, it is important to observe target organs without oversight significant regions. Since it is hard task to observe all regions of the target organ in the fly-through, the user may miss observing important regions such as small tumors. The proposed method tries to detect automatically unobserved regions during the fly-through of the VES. After the navigation, the system presents unobserved regions, and the user can confirm them. The method finds unobserved regions as a set of triangle patches that were not displayed on the monitor when we use the surface rendering method in the VES. We detect a set of voxels not rendered in the case of display by the volume rendering method. We applied the proposed method to colon and bronchus regions extracted from X-ray CT images. The experimental results showed that our method could display observed and unobserved regions satisfactorily.
Year
DOI
Venue
2001
10.1016/S0531-5131(01)00051-6
International Congress Series
Keywords
Field
DocType
Virtual endoscopy,Computer aided diagnosis,Virtual colonoscopy,Unobserved regions,Navigation,Fly-through
Voxel,Computer vision,Virtual endoscopy,Volume rendering,Small tumors,Computer graphics (images),Computer-aided diagnosis,Artificial intelligence,Virtual colonoscopy,Rendering (computer graphics),Medicine,Medical diagnosis
Conference
Volume
ISSN
Citations 
1230
0531-5131
3
PageRank 
References 
Authors
0.49
2
5
Name
Order
Citations
PageRank
Kensaku Mori11125160.28
Yuichiro Hayashi214724.97
Jun-ichiro Toriwaki3578136.04
Y Suenaga4737187.41
Jun-ichi Hasegawa522161.17