Improved H.264/AVC lossless intra compression using multiple partition prediction for 4×4 intra block. - Sang Heon Lee 004; Jewoong Ryu; Nam Ik Cho (ICIP, 2011)

Classification of video resolution for the enhanced display of images on HDTV. - Jewoong Ryu; Gibak Kim; Sang Hwa Lee; Byungseok Min; Nam Ik Cho (APSIPA, 2013)

Language-Independent Text-Line Extraction Algorithm for Handwritten Documents. - Jewoong Ryu; Hyung Il Koo; Nam Ik Cho (IEEE Signal Process. Lett., 2014)

New intra prediction methods based on channel correlation and their combination for color image compression. - Sang Heon Lee 004; Dae-Hyun Lee; Jewoong Ryu; Nam Ik Cho (APSIPA, 2015)

Word Segmentation Method for Handwritten Documents based on Structured Learning. - Jewoong Ryu; Hyung Il Koo; Nam Ik Cho (IEEE Signal Process. Lett., 2015)

A scalable coding based on structure-preserving filter and saliency-ordered transmission. - Dae-Hyun Lee; Bora Jin; Jewoong Ryu; Nam Ik Cho (APSIPA, 2016)

Textline detection in degraded historical document images. - Byeongyong Ahn; Jewoong Ryu; Hyung Il Koo; Nam Ik Cho (EURASIP J. Image Video Process., 2017)