NDLI: Pulmonary motion tracking from 4D-CT images using a 3D-KLT tracker

Content Provider	IEEE Xplore Digital Library
Author	Kubota, Y. Aoki, K. Nagahashi, H. Minohara, S.-I.
Copyright Year	2009
Description	Author affiliation: Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, Kanagawa, Japan (Aoki, K.; Nagahashi, H.) \|\| Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Kanagawa, Japan (Kubota, Y.) \|\| National Institute of Radiological Sciences, Chiba, Japan (Minohara, S.-I.)
Abstract	We propose a new method for lung-motion tracking and its quantification from 4-dimensional X-ray computed to-mographic (4D-CT) images. This method uses an enhanced 3D-KLT tracker. An advantage of our method is that it can find many feature points (regions) for tracking that are not restricted to the bifurcation points of bronchi or vessels. The feature point extraction algorithm depends only on image gradients. Moreover, our method adopts a hierarchical tracking based on pyramidal image structure. This provides robustness for large movements of the objects. Lung motion is quantified by tracking a large number of feature points in the lung. In this paper, we first evaluate the performance of our proposed method for artificial 4D-CT images and then describe quantification results of real 4D-CT images. Our experimental results clearly show that lung movement is not modeled by a simple translation but by an oval pattern.
Starting Page	3475
Ending Page	3479
File Size	787620
Page Count	5
File Format	PDF
ISBN	9781424439614
ISSN	10957863
DOI	10.1109/NSSMIC.2009.5401791
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tracking Nuclear and plasma sciences
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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