How to render human 3d model using the kinect 3d points in OPENGL viewport


I am a newbie to spline modeling.So i get 3 dimensional points from kinect and I try to create a human model using bspline control points and knot vectors using those 3 dimensional points obtained from Kinect for the tracked human.But the result is looking like a human bspline mesh.For example, if i create the model of right hand,by passing kinect 3d points using bspline algorithm,it draws 5 bspline curves from right shoulder joint to elbow joints.When 3d points of kinect is passed to the bspline logic for each frame, all the bspline curves are distracting and it is looking like a mesh of right hand.

So I would like to know about drawing bspline model from kinect 3d points.