Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/192
Title: The bi-elliptical deformable contour and its application to automated tongue segmentation in Chinese medicine
Authors: Pang, Bo
Zhang, David D.
Wang, Kuanquan
Subjects: Chinese medicine
Deformable templates
Medical biometrics
Snakes
Tongue image segmentation
Issue Date: Aug-2005
Publisher: IEEE
Source: IEEE transactions on medical imaging, Aug. 2005, v. 24, no. 8, p. 946-956.
Abstract: Automated tongue image segmentation, in Chinese medicine, is difficult due to two special factors: 1) there are many pathological details on the surface of the tongue, which have a large influence on edge extraction; 2) the shapes of the tongue bodies captured from various persons (with different diseases) are quite different, so they are impossible to describe properly using a predefined deformable template. To address these problems, in this paper, we propose an original technique that is based on a combination of a bi-elliptical deformable template (BEDT) and an active contour model, namely the bi-elliptical deformable contour (BEDC). The BEDT captures gross shape features by using the steepest decent method on its energy function in the parameter space. The BEDC is derived from the BEDT by substituting template forces for classical internal forces, and can deform to fit local details. Our algorithm features fully automatic interpretation of tongue images and a consistent combination of global and local controls via the template force. We apply the BEDC to a large set of clinical tongue images and present experimental results.
Rights: © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/192
DOI: 10.1109/TMI.2005.850552
ISSN: 0278-0062
Appears in Collections:COMP Journal/Magazine Articles

Files in This Item:
File Description SizeFormat 
224.pdf2.49 MBAdobe PDFView/Open


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated. No item in the PolyU IR may be reproduced for commercial or resale purposes.