  Gastric endoscopy is a common clinical practice that enables medical doctors
to diagnose the stomach inside a body. In order to identify a gastric lesion's
location such as early gastric cancer within the stomach, this work addressed
to reconstruct the 3D shape of a whole stomach with color texture information
generated from a standard monocular endoscope video. Previous works have tried
to reconstruct the 3D structures of various organs from endoscope images.
However, they are mainly focused on a partial surface. In this work, we
investigated how to enable structure-from-motion (SfM) to reconstruct the whole
shape of a stomach from a standard endoscope video. We specifically
investigated the combined effect of chromo-endoscopy and color channel
selection on SfM. Our study found that 3D reconstruction of the whole stomach
can be achieved by using red channel images captured under chromo-endoscopy by
spreading indigo carmine (IC) dye on the stomach surface.
