Abstract：
:Colonoscopy is the most popular screening tool for colorectal cancer. Recent studies reported that retroflexion during colonoscopy helped to detect more polyps. Retroflexion is an endoscope maneuver that enables visualization of internal mucosa along the shaft of the endoscope, enabling visualization of the mucosa area that is difficult to see with typical forward viewing. This paper describes our new method that detects the retroflexion during colonoscopy. We propose region shape and location (RSL) features and edgeless edge cross-section profile (ECSP) features that encapsulate important properties of endoscope appearance and edge information during retroflexion. Our experimental results on 50 colonoscopy test videos show that a simple ensemble classifier using both ECSP and RSL features can effectively identify retroflexion in terms of analysis time and detection rate.
journal_name
IEEE J Biomed Health Informjournal_title
IEEE journal of biomedical and health informaticsauthors
Wang Y,Tavanapong W,Wong J,Oh J,de Groen PCdoi
10.1109/TITB.2012.2226595subject
Has Abstractpub_date
2013-01-01 00:00:00pages
143-52issue
1eissn
2168-2194issn
2168-2208journal_volume
17pub_type
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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journal_title：IEEE journal of biomedical and health informatics
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