16. End point & Junction point, Connection Fig.4 การแบ่งโซนของ End Point & Junction Fig.5 การแบ่งโซนของ Connection
17.
18. Head Fig. 6 การหา Head I. Methasate, S. Marukatat, S. Sae-tang, T. Theeramunkong, “The Feature Combination Technique for Off-line Thai Character Recognition System” Proceedings of the 2005 Eight International Conference on Document Analysis and Recognition (ICDAR’05), 2005.
24. Cavity Fig.9 ลักษณะของ Cavity แบบต่างๆ Pisit Phokharatkul and Chom Kimpan, “Recognition of handprinted Thai characters Using the cavity features of character base on neural network.” The 1998 IEEE Asia-Pacific Conference on circuits and systems, 24-27 November 1998, pp. 149-152.