1Park Jong H, Um Bong S. A new approach to similarity retrieval of 2-D graphic objects based on dominant shapes [J]. Pattern Recognition,1999,20(6):591-616.
2Amar M,Aggarwal J K. Contour registration by shape-specific points for shape matching. CVGIP 1983,22:396-408.
3Huttenlocher Daniel P, Klanderman Gregory A. Comparing Images Using the Hausdorff Distance[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,1993,15:850-863 .
