Automatic Extraction of the Centerline of Corpus Callosum from Segmented Mid-Sagittal MR Images

Figure 2

Shape context computation. (a) Contour of CC (black) and three boundary points marked by the centers of circles (blue). (b) Diagram of log-polar bins used in computing the shape contexts under the local log-polar coordinate system (10 bins for coordinate and 15 bins for angular coordinate in this work). (c–e) Histogram maps of three points marked in (a).