Shape Recovery of Polyp Using Blood Vessel Detection and Matching Estimation by U-Net

In the medical diagnosis, endoscopic polyps are examined and discrimination between benign and malignant is judged via the visual observation by a medical doctor. Estimating size of the polyp is important because the larger polyp tends to become malignant if the size is more than 1 cm since it is not easy to estimate the size of the polyp except medical doctors who have several years of experience. This paper proposes reliable correspondence between two images with a slight movment of endoscope using ORB features estimating the absolute size of polyp using blood vessel information in the endoscopic images. The effectiveness of the proposed approach is confirmed via experiments.