DISEASES DETECTION IN WIRELESS CAPSULE ENDOSCOPY IMAGES WITH COLOR FEATURE

2007 ◽  
Vol 04 (03) ◽  
pp. 251-259 ◽  
Author(s):  
BAOPU LI ◽  
MAX Q.-H. MENG

Due to a few great advantages such as viewing the entire small intestine with almost non-invasiveness and no sedation over traditional endoscopies and other imaging techniques for gastrointestinal tract diseases, the wireless capsule endoscopy invented by Given Imaging has found its gradually wide applications in hospitals. However, one major issue concerning this new technology is that too many images to be examined by naked eyes cause a huge burden to physicians, so it is very necessary to ease the physician if we can do diseases detection using computerized methods. In this paper, we develop a new method by making use of color feature, also a very important clue for diagnosis by physicians, to discriminate between normal region and abnormal region. Exploiting the color histogram of the image, we can get the distribution of the color in the image. Then we use the minimum distance classifier to judge the status of the regions. Experimental results on our present data prove promising performance of the proposed scheme in detecting bleeding and ulcers.

2011 ◽  
Vol 08 (04) ◽  
pp. 315-324 ◽  
Author(s):  
YANAN FU ◽  
MRINAL MANDAL ◽  
DAVID W. ZHANG ◽  
MAX Q.-H. MENG

Wireless capsule endoscopy (WCE) is an imaging technology that enables close examination of the interior of the entire small intestine. A major problem associated with this new technology is that a large volume of video data need to be examined manually by clinicians. It is therefore useful to design a mechanism that allows the clinicians to gain certain evaluation of a video without watching the whole video. In this paper, a shot detection-based method is presented for automatically establishing the WCE video static storyboard, and then moving storyboard is extracted based on the selected representative frames under the supervision of clinicians. Experimental results show that most of the representative frames containing relevant features can be extracted from the original WCE video. The proposed method can significantly and safely reduce the number of frames that need to be examined by clinicians and thus speed up the diagnosis procedures.


2006 ◽  
Vol 63 (1) ◽  
pp. 192-194 ◽  
Author(s):  
Ervin Toth ◽  
Jan Lillienau ◽  
Mats Ekelund ◽  
Jan Alumets ◽  
Rolf Olsson ◽  
...  

2005 ◽  
Vol 71 (5) ◽  
pp. 455-458
Author(s):  
Phillip K. Chang ◽  
Elizabeth G. Holt ◽  
Willem J.S. De Villiers ◽  
Bernard R. Boulanger

Wireless capsule endoscopy has revolutionized the diagnostic evaluation of the small intestine and is increasingly used by gastroenterologists. However, complications can occur with this seemingly safe procedure. We report two cases of Crohn's disease in which capsule endoscopy was performed with retention of the capsules. Both patients were taken to the operating room electively after careful preoperative planning to address both the surgical aspect of Crohn's disease and the retained capsule. We reviewed the literature on the use of wireless capsule endoscopy in patients with Crohn's disease and discuss the approach to a new surgical complication.


2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Guobing Pan ◽  
Litong Wang

Wireless capsule endoscopy (WCE) offers a feasible noninvasive way to detect the whole gastrointestinal (GI) tract and revolutionizes the diagnosis technology. However, compared with wired endoscopies, the limited working time, the low frame rate, and the low image resolution limit the wider application. The progress of this new technology is reviewed in this paper, and the evolution tendencies are analyzed to be high image resolution, high frame rate, and long working time. Unfortunately, the power supply of capsule endoscope (CE) is the bottleneck. Wireless power transmission (WPT) is the promising solution to this problem, but is also the technical challenge. Active CE is another tendency and will be the next geneion of the WCE. Nevertheless, it will not come true shortly, unless the practical locomotion mechanism of the active CE in GI tract is achieved. The locomotion mechanism is the other technical challenge, besides the challenge of WPT. The progress about the WPT and the active capsule technology is reviewed.


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