Abstract
The degree of progression of a malignant tumor in the gastrointestinal tract is determined primarily by an endoscopist based on endoscopic images. The most important factor in determining the degree of progression is the tumor size. In this paper, we propose a method to three-dimensionally model of the stomach lining from endoscopic images and to measure the tumor by using the data. While conventional methods use a reflection model wherein the endoscope has a single light source, the proposed method constructs a new reflection model that leverages the characteristics of the two light sources. Finally, we demonstrate the effectiveness of the proposed method through several experiments.
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