1. New Multiclass Classification Method: Modified Maximum Likelihood Decision Rule;Chang,1973
2. Boundary Detection of Radiographic Images by a Threshold Method;Chow;Proc. IFIP Congr.,1972
3. Computer Diagnosis of Radiographic Images;Dwyer,1972
4. On the Encoding of Arbitrary Geometric Configurations;Freeman;IRE Trans. Electronic Computers, EC,1961