f_CS_4_Feature_ShapeTree.m

function [ csfeature ] = f_CS_4_Feature_ShapeTree( ContourSegment )
%f_CS_4_Feature_ShapeTree: this function is used to generate contour
%                          segment descriptor using shape tree.
%   input: 
%         ContourSegment: a single contour segment
%   output:
%          csfeature: the contour segment feature using shape tree
%   description:
%          refer to the paper: 
%          Pedro F. Felzenszwalb, et al., Hierarchical matching of 
%          deformable shapes, CVPR 2007


end