Error Concealment Scheme for H.263 Coded Video Transmissions. - Dong-Hwan Choi; Sang-Hak Lee; Chan-Sik Hwang (PICS, 2001)

Error-resilient method for robust video transmissions. - Dong-Hwan Choi; Tae-Gyun Lim; Sang-Hak Lee; Chan-Sik Hwang (VCIP, 2003)

Error Concealment Method Using Three-Dimensional Motion Estimation. - Dong-Hwan Choi; Sang-Hak Lee; Chan-Sik Hwang (ICCSA (3), 2004)

An unsupervised image segmentation algorithm based on the machine learning of appropriate features. - Sang-Hak Lee; Hyung Il Koo; Nam Ik Cho (ICIP, 2009)

A video object segmentation algorithm based on the feature learning and shape tracking. - Sang-Hak Lee; Hyung Il Koo; Nam Ik Cho (ICIP, 2010)

New automatic defect classification algorithm based on a classification-after-segmentation framework. - Sang-Hak Lee; Hyung Il Koo; Nam Ik Cho (J. Electronic Imaging, 2010)

Image segmentation algorithms based on the machine learning of features. - Sang-Hak Lee; Hyung Il Koo; Nam Ik Cho (Pattern Recognit. Lett., 2010)