Figure 1From: Prediction of open urinary tract in laparoscopic partial nephrectomy by virtual resection plane visualization Segmentation of CT image. From an input 3D CT image (A), we segmented the three regions by different methods. (B) The kidney region was segmented by the graph cut method [8, 9]. We specified several foreground (red) and background (blue) points on a cross section and the method computed the kidney region from the points. (C) The urinary tract region was segmented by region growing [7]. The method grew the urinary tract region from several seeds (red points). (D) The tumor region was segmented by the contour-based method [11]. The method computed the boundary surface from specified multiple contours.Back to article page