TY - JOUR
T1 - A model of deformable rings for interpretation of wireless capsule endoscopic videos
AU - Szczypiński, Piotr M.
AU - Sriram, Ram D.
AU - Sriram, Parupudi V.J.
AU - Reddy, D. Nageshwar
N1 - Funding Information:
This work was supported by the US Department of Commerce’s National Institute of Standards and Technology. Any mention of organizations, agencies, vendors or commercial products in this document is for illustration only. It does not imply sponsorship, contract, recommendation or endorsement by NIST.
PY - 2009/4
Y1 - 2009/4
N2 - Wireless Capsule Endoscopy (WCE) provides a means to obtain a detailed video of the small intestine. A single session with WCE may produce nearly 8 h of video. Its interpretation is tedious task, which requires considerable expertise and is very stressful. The Model of Deformable Rings (MDR) was developed to preprocess WCE video and aid clinicians with its interpretation. The MDR uses a simplified model of a capsule's motion to flexibly match (register) consecutive video frames. Essentially, it computes motion-descriptive characteristics and produces a two-dimensional representation of the gastrointestinal (GI) tract's internal surface - a map. The motion-descriptive characteristics are used to indicate video fragments which exhibit segmentary contractions, peristalsis, refraction phases and areas of capsule retention. Within maps, certain characteristics that indicate areas of bleeding, ulceration and obscuring froth could be recognized. Therefore, the maps allow quick identification of such abnormal areas. The experimental results demonstrate that the number of discovered pathologies and gastrointestinal landmarks increases with the MDR technique.
AB - Wireless Capsule Endoscopy (WCE) provides a means to obtain a detailed video of the small intestine. A single session with WCE may produce nearly 8 h of video. Its interpretation is tedious task, which requires considerable expertise and is very stressful. The Model of Deformable Rings (MDR) was developed to preprocess WCE video and aid clinicians with its interpretation. The MDR uses a simplified model of a capsule's motion to flexibly match (register) consecutive video frames. Essentially, it computes motion-descriptive characteristics and produces a two-dimensional representation of the gastrointestinal (GI) tract's internal surface - a map. The motion-descriptive characteristics are used to indicate video fragments which exhibit segmentary contractions, peristalsis, refraction phases and areas of capsule retention. Within maps, certain characteristics that indicate areas of bleeding, ulceration and obscuring froth could be recognized. Therefore, the maps allow quick identification of such abnormal areas. The experimental results demonstrate that the number of discovered pathologies and gastrointestinal landmarks increases with the MDR technique.
KW - Deformable models
KW - Gastrointestinal system
KW - Model of deformable rings
KW - Video analysis
KW - Wireless capsule endoscope
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U2 - 10.1016/j.media.2008.12.002
DO - 10.1016/j.media.2008.12.002
M3 - Article
C2 - 19157954
AN - SCOPUS:62549152628
SN - 1361-8415
VL - 13
SP - 312
EP - 324
JO - Medical Image Analysis
JF - Medical Image Analysis
IS - 2
ER -