Stomach bleeding is a kind of gastrointestinal disease which can be diagnosed noninvasively by wireless capsule endoscopy (WCE).\nHowever, it requires much time for physicians to scan large amount of WCE images. Alternatively, computer-assisted bleeding\nlocalization systems are developed where color, edge, and intensity features are defined to distinguish lesions from normal tissues.\nThis paper proposes a saliency-based localization system where three saliency maps are computed: phase congruency-based edge\nsaliency map derived from Log-Gabor filter bands, intensity histogram-guided intensity saliency map, and red proportion-based\nsaliency map. Fusing the three maps together, the proposed system can detect bleeding regions by thresholding the fused saliency\nmap. Results demonstrate the accuracy of 98.97% for our system to mark bleeding regions.
Loading....