Magnetic resonance image retrieval based on contour to centroid triangulation with shape feature similarity

In this paper, we present an image retrieval method based on contour to centroid triangulation with shape feature similarity. We assume test images and database images used in this paper are all single objects that are segmented by known algorithms such as SVM and K-means algorithms. From these classified binary images, we propose novel Shape based image retrieval method integrating sectored characteristic points to the Contour to Centroid Triangulation (CTCT) method using Unique Representation Grid (URG) as shape feature that can perform as the filtering process. The experimental result shows proposed method has improved conventional CTCT in retrieving medical object image compared to conventional CTCT method with 79 percent match rate while CTCT showed 33 percent match.