Gastroscopic Image Graph: Application to Noninvasive Multitarget Tracking under Gastroscopy

Figure 5

Clincal experiment results. The first row is the retargetting results of the angularis, the middle row is antral structures, and the bottom row is the stomach body. The first image in every row is the reference image, where the green circles are the markers created by endoscopist, and the following images display the lesion retargetting results. The lesions were retargeted every 40 frames; thus, the time interval between adjacent frames is 1 second. To distinguish the markers, all the markers were labled by number. Due to the fold and deformation of the gastric internal surface, the target lesions may have been missed during the procedure. From the figures, it is indicated that this method is sensitive to missing markers and can retarget them when they appeared in the follow-up frames.