Speckle Reducing Anisotropic Diffusion Based on Directions of Gradient. - HyeSuk Kim; Keon Hee Park; Hyo Sun Yoon; Gueesang Lee (ALPIT, 2008)

Korean Text Extraction by Local Color Quantization and K-means Clustering in Natural Scene. - Anh-Nga Lai; Keon Hee Park; Manoj Kumar; Gueesang Lee (ACIIDS, 2009)