Jae-Won Chung
KAIST
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Publication
Featured researches published by Jae-Won Chung.
Signal Processing-image Communication | 2000
Jae-Won Chung; Jin-Hak Lee; Joohee Moon; Jae-Kyoon Kim
Abstract This paper proposes a new vertex-based binary shape intra coding scheme that generates a set of vertices reducing shape reconstruction error and efficiently encodes the vertices. The conventional vertex-based coding scheme uses the iterated refinement method (IRM) for vertex selection and the object-adaptive vertex encoding (OAVE) for vertex transmission. In the proposed scheme, we introduce a vertex adjustment method to be applied to the vertices selected by the IRM. The vertex adjustment method significantly reduces the reconstruction error of binary shapes. For efficient transmission of vertices, we also propose 1D vertex detection, vertex reordering and initial vertex encoding methods. Furthermore, a conditional differential chain coding is presented for efficient lossless coding of contours. Experimental results show that the proposed vertex-based intra coding scheme reduces coded bits by 17–29% compared with the conventional vertex-based coding scheme, and by up to 27% compared with the intra coding mode of the context-based arithmetic encoding (CAE) scheme of the MPEG-4 Video Verification Model.
Archive | 1995
Jae-Won Chung; Jin-Hak Lee; Joo-Hee Moon; Jae-Kyoon Kim
Archive | 1996
Jae-Kyoon Kim; Jae-Won Chung; Kwang-Hoon Park; Joo-Hee Moon; Ji-Heon Kwen
Archive | 1998
Sung Moon Chun; Jin Hak Lee; Joo Hee Moon; Gwang-Hoon Park; Jae Kyoon Kim; Jae-Won Chung
Electronics Letters | 1998
Jae-Won Chung; Joo-Hee Moon; Jae-Kyoon Kim
Archive | 1997
Jae-Won Chung; Cheol-Soo Park; Joo-Hee Moon; Jae-Kyoon Kim
Archive | 1998
Jong-Deuk Kim; Sung-Moon Chun; Jae-Won Chung; Joo-Hee Moon
Electronics Letters | 1999
Jin-Hak Lee; Jae-Won Chung; Jae-Kyoon Kim
Journal of the Institute of Electronics Engineers of Korea | 2002
Joon-Ho Song; Joo-Hee Moon; Jae-Won Chung
Archive | 1998
Sung-Moon Chun; Jae-Won Chung; Jong-Deuk Kim; Joo-Hee Moon