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Journal of Healthcare Engineering
Volume 2018, Article ID 3090341, 11 pages
Research Article

Organic Boundary Location Based on Color-Texture of Visual Perception in Wireless Capsule Endoscopy Video

1College of Computer Science, Chongqing University, Chongqing 400044, China
2Department of Gastroenterology, Second Affiliated Hospital, Third Military Medical University, Chongqing, China

Correspondence should be addressed to Chengliang Wang; moc.liamg@55lcgnaw

Received 7 July 2017; Revised 8 September 2017; Accepted 23 October 2017; Published 10 January 2018

Academic Editor: Yong Xia

Copyright © 2018 Chengliang Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper addresses the problem of automatically locating the boundary between the stomach and the small intestine (the pylorus) in wireless capsule endoscopy (WCE) video. For efficient image segmentation, the color-saliency region detection (CSD) method is developed for obtaining the potentially valid region of the frame (VROF). To improve the accuracy of locating the pylorus, we design the Monitor-Judge model. On the one hand, the color-texture fusion feature of visual perception (CTVP) is constructed by grey level cooccurrence matrix (GLCM) feature from the maximum moments of the phase congruency covariance and hue-saturation histogram feature in HSI color space. On the other hand, support vector machine (SVM) classifier with the CTVP feature is utilized to locate the pylorus. The experimental results on 30 real WCE videos demonstrate that the proposed location method outperforms the related valuable techniques.