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A comparative study of shape features for polyp detection in wireless capsule endoscopy images

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3 Author(s)
Baopu Li ; Department of Electronic Engineering at The Chinese University of Hong Kong, Hong Kong SAR, China ; Max Q. -H. Meng ; Lisheng Xu

Wireless capsule endoscopy (WCE) has been gradually employed in hospitals because it can directly view the entire small bowel of a human body for the first time. However, a troublesome problem related to this new technology is that too many images produced by WCE will take a lot of efforts for doctors to inspect. In this paper, we propose a comparative study of shape features aiming for intestinal polyp detection for WCE images. As polyps exhibit strong shape characteristics, also a powerful clue used by physicians, we investigate two kinds of shape features, MEPG-7 region-based shape descriptor and Zernike moments, in our study. With multi-layer perceptron neural network as the classifier, experiments on our present image data show that it is promising to employ both Zernike moments and MEPG-7 region-based shape descriptor as the shape features to recognize the intestinal polyp regions, and a better performance is obtained by the Zernike moments based shape features.

Published in:

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Date of Conference:

3-6 Sept. 2009