Robust image watermarking scheme resilient to desynchronization attacks. - Changryoul Choi; Jechang Jeong (Security and Watermarking of Multimedia Contents, 2002)

Modified rate distortion optimization using inter-block dependence for H.264/AVC intra coding. - Jongmin You; Changryoul Choi; Jechang Jeong (IEEE Trans. Consumer Electron., 2008)

New sorting-based partial distortion elimination algorithm for fast optimal motion estimation. - Changryoul Choi; Jechang Jeong (IEEE Trans. Consumer Electron., 2009)

Low-Complexity DC-Compensated Weighted 2BT-Based Motion Estimation. - Changryoul Choi; Jechang Jeong (IIH-MSP, 2010)

Improved two-bit transform-based motion estimation via extension of matching criterion. - Changryoul Choi; Jechang Jeong (IPTA, 2010)

Adaptive fast-matching algorithm based on sub-block ordering. - Soonjong Jin; Changryoul Choi; Joohyun Lee; Jechang Jeong (VCIP, 2010)

Successive elimination algorithm for two-bit transform-based motion estimation. - Changryoul Choi; Jechang Jeong (IEICE Electron. Express, 2010)

Enhanced two-bit transform based motion estimation via extension of matching criterion. - Changryoul Choi; Jechang Jeong (IEEE Trans. Consumer Electron., 2010)

Fast Block Matching Algorithm for Constrained One-Bit Transform-Based Motion Estimation Using Binomial Distribution. - Hanjin Park; Changryoul Choi; Jechang Jeong (DICTA, 2011)

Low complexity truncated Gray-coded bit plane matching based multiple candidate motion estimation. - Changryoul Choi; Jechang Jeong (EUVIP, 2011)

Low complexity weighted two-bit transforms based multiple candidate motion estimation. - Changryoul Choi; Jechang Jeong (IEEE Trans. Consumer Electron., 2011)

Constrained two-bit transform for low complexity motion estimation. - Changryoul Choi; Jechang Jeong (ICCE, 2013)

Fast motion estimation algorithm using dual bit-plane matching criteria. - Changryoul Choi; Jechang Jeong (MIPRO, 2014)

Successive Elimination Algorithm for Constrained One-bit Transform Based Motion Estimation Using the Bonferroni Inequality. - Changryoul Choi; Jechang Jeong (IEEE Signal Process. Lett., 2014)

Bit-inverted Gray Coded Bit-plane Matching for Low Complexity Motion Estimation. - Changryoul Choi; Jechang Jeong (PECCS, 2015)

Blind detection of interleaver parameter using error-less symbols. - Youngkyun Jeon; Changryoul Choi; Dongweon Yoon (ICTC, 2017)

Enhanced Blind Interleaver Parameters Estimation Algorithm for Noisy Environment. - Changryoul Choi; Dongweon Yoon (IEEE Access, 2018)

Fast and Scalable Soft Decision Decoding of Linear Block Codes. - Changryoul Choi; Jechang Jeong (IEEE Commun. Lett., 2019)

Novel Blind Interleaver Parameter Estimation in a Noncooperative Context. - Changryoul Choi; Dongweon Yoon (IEEE Trans. Aerosp. Electron. Syst., 2019)

Fast Soft Decision Decoding of Linear Block Codes Using Partial Syndrome Search. - Changryoul Choi; Jechang Jeong (ISIT, 2020)

Novel blind interleaver parameters estimation based on Hamming weight distribution of linear codes. - Seungwoo Wee; Changryoul Choi; Jechang Jeong (Digit. Signal Process., 2021)

Fast Soft Decision Decoding Algorithm for Linear Block Codes Using Permuted Generator Matrices. - Changryoul Choi; Jechang Jeong (IEEE Commun. Lett., 2021)

Blind Interleaver Parameters Estimation Using Kolmogorov-Smirnov Test. - Seungwoo Wee; Changryoul Choi; Jechang Jeong (Sensors, 2021)