Colorectal cancer (CRC) is the second leading cause of cancer deaths in the United States. According to the American Cancer Society, 49,190 people died in 2016. Since adenomatous polyps (adenocarcinomas) are most likely to develop as CRC, early and accurate detection of polyps from optical colonoscopy (OC) is important for the prevention and timely treatment of CRC. Clinical tests have up to 25% misdiagnosis rates, resulting in poor survival. Therefore, the clinical practice of the need for automatic detection methods.