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Colonoscopy is an important screening tool for colorectal cancer the second leading cause of all cancer deaths behind lung cancer in the United States. During a colonoscopic procedure, a tiny video camera at the tip of the endoscope generates a video signal of the internal mucosa of the colon. The video data are displayed on a monitor for real-time analysis by the endoscopist. Colonoscopy allows a number of biopsy and therapeutic operations (e. g., polyp removal} to be performed in a singledoi:10.31274/rtd-20201107-280 fatcat:vnagikhixbgxnlbcplivdpzjj4