On the architecture of intelligent STEP-compliant CNC. - Suk-Hwan Suh; Jung-Hoon Cho; Hee-Dong Hong (Int. J. Comput. Integr. Manuf., 2002)

A Contrast Enhancement Method for HDR Image Using a Modified Image Formation Model. - Byoung-Ju Yun; Hee-Dong Hong; Ho-Hyoung Choi (IEICE Trans. Inf. Syst., 2012)