18 December 2003 Blurry-frame detection and shot segmentation in colonoscopy videos
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Colonoscopy is an important screening procedure for colorectal cancer. During this procedure, the endoscopist visually inspects the colon. Human inspection, however, is not without error. We hypothesize that colonoscopy videos may contain additional valuable information missed by the endoscopist. Video segmentation is the first necessary step for the content-based video analysis and retrieval to provide efficient access to the important images and video segments from a large colonoscopy video database. Based on the unique characteristics of colonoscopy videos, we introduce a new scheme to detect and remove blurry frames, and segment the videos into shots based on the contents. Our experimental results show that the average precision and recall of the proposed scheme are over 90% for the detection of non-blurry images. The proposed method of blurry frame detection and shot segmentation is extensible to the videos captured from other endoscopic procedures such as upper gastrointestinal endoscopy, enteroscopy, cystoscopy, and laparoscopy.
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JungHwan Oh, JungHwan Oh, Sae Hwang, Sae Hwang, Wallapak Tavanapong, Wallapak Tavanapong, Piet C. de Groen, Piet C. de Groen, Johnny Wong, Johnny Wong, } "Blurry-frame detection and shot segmentation in colonoscopy videos", Proc. SPIE 5307, Storage and Retrieval Methods and Applications for Multimedia 2004, (18 December 2003); doi: 10.1117/12.527108; https://doi.org/10.1117/12.527108


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