Parts-Based Feature Extraction of Spectrum of Speech Signal Using Non-Negative Matrix Factorization. - Jeong-Won Park; Chang-Keun Kim; Kwang-Seok Lee; Si-Young Koh; Kang-In Hur (J. Inform. and Commun. Convergence Engineering, 2003)

Optical implementation of improved resolution with intermediate-view reconstruction technique based on integral imaging. - Keong-Jin Lee; Sang-Tae Lee; Yongseok Oh; Suk-Pyo Hong; Chang-Keun Kim; Eun-Soo Kim (Three-Dimensional Image Capture and Applications, 2008)