Chang, Wen-Thong
Emeritus Professor
Job title Professor
Name Chang, Wen-Thong
Email wtchang@cc.nctu.edu.tw
Research expertise .Digital Signal Processing.Multimedia.Communication Systems.Image Processing
0
class CM A
Academic status Graduated
Mentor 0
Year of Entrance 1975
Year of graduate 1979
Year Paper Title
2011 Ching-Chih Kuo, Wen-Thong Chang 2004 “Quantization noise reduction for DCT coded images” IEICE Trans. On communications,Vol.E87-B, No.8, pp2342-2351
2011 Chin-Feng Lin, Wen-Thong Chang, Hsin-Wang Lee, Shih-Ii Hung 2006 "Downlink Power Control in Multi-code CDMA for Mobile Medicine", Medical & Biological Engineering & Computing. Vol.44, pp437-444.
2011 Chin-Feng Lin, Wen-Thong Chang, Ching-Yi Li 2007 “A Chaos-based visual encryption mechanism in JPEG2000 medical images”Journal of medical and biological Engineering, Vol.27 No.3 144-149
2002 Ching-Chih Kuo,Wen-Thong Chang, "Adaptive transform coefficient Restoration in Transform Image Codeing", ""IEICE trans.On communications(submitted).", 2002年12月
1999 Wen-Jen Ho, Wen-Thong Chang, "'Adaptive predictor based on maximally flat halfband filter in lifting schem", IEEE Trans. on Signal Processing, Vol.47, No11, pp(1-14), 1999年12月
1998 Pei-Chuan Liu, Wen-Thong Chang, "'Recursive Wiener Filter for Motion Parameter Estimation in Three-Parameter Motion Model'", IEEE Trans. CAS for Video Technology, Vol.8, No8, pp1001-1014. , 1998年12月
1998 Pei-Chuan Liu, Wen-Thong Chang, Wen-Zen Shen, "Recursive Minimum Energy Algorithm for Image Interpoation", IEEE Trans. Consumer Electronics, Vol.44, No.1, pp187-191. ", 1998年12月
1998 Pei-Chuan Liu, Wen-Thong Chang, Wen-Zen Shen, "Combinative Motion Estimation Algorithm and the Corresponding Architecture for Complex Motion Phenomenon", IEEE Trans. Consumer Electronics, Vol.44, No.1, pp108-116. , 1998年12月
1998 Wen-Jen Ho, Wen-Thong Chang, "Multigrid computation for curve fitting in the wavelet domain", Electronics Letter, Vol.34, No.5, pp433-, 1998年12月
1997 Pei-Chuan Liu, Wen-Thong Chang, Wen-Zen Shen, "Motion Parameter Estimation based on the Block Recursive Algorithm with Finite Word Length", IEEE Trans. Consumer Electronics, Vol. 43, No.4, pp1124-1131., 1997年12月
1994 Ming-Haw Yaou, Wen-Thong Chang, "M-Channel Perfect Reconstruction Multirate Signal Filtering Based on M-ary Biorthonormal Wavelet Analysis", IEEE. Trans. Signal Processing, Vol.42, NO.12, pp3508-3512, 1994年12月
1994 Ming-Haw Yaou, Wen-Thong Chang., "Fast Surface Interpolation Usint Multi-Resolution Wavelet Transform", IEEE. Trans. PAMI, Vol.16, NO.7 , pp673-688, 1994年12月
1994 Ming-Haw Yaou, Wen-Thong Chang, "Vector Space Projection Approach for Perfect Reconstruction Filter Bank Design", Journal of Visual Communication and Image Representation, Vol.5, No.2, pp.156-171, 1994年12月
1994 Hsun-Chang Hsieh, Wen-Thong Chang, "Virtual Knot Technique for Curve Fitting of Rapidly Varying Data", Computer Aided Geometric Design, Vol.11 pp71-95, 1994年12月
1993 Ming-Haw Yaou, Wen-Thong Chang, "Wavelet Transform in Scattering Data Interpolation", Electronics Letter, Vol.29 No.21 pp1835-1837, 1993年12月
1992 Wen-Thong Chang, Shao-An Lin, "Incremental Maneuver Estimation Model for Multitarget Tracking", IEEE. Trans. Aerospace and Electronics Systems, Vol.28 No.2 pp.381-394. ", 1992年12月
1992 Hsun-Chang Hsieh, Wen-Thong Chang, "Analog Circuit for Image Interpolation", Electronics Letter, Vol.28 No.9 pp867-868, 1992年12月
1991 Wen-Thong Chang, Ming-Shing Lin, "Half-Band Filter Design with Old-Polynomial Chebychev Approximation", IEE. Proceedings Part G: Circuit, Devices and System. Vol.138 No.4 pp.492-50, 1991年12月
1991 Hsun-Chang Hsieh, Wen-Thong Chang, "Analog Computation Structure for Surface Reconstruction", Journal of Visual Communication and Image Representation Vol.2 No.4 pp.381-394. ", 1991年12月
1986 Wen-Thong Chang, David Casasent, "Correlation Synthetic discriminant functions", Applied Optics, Vol.25, No.14, pp2343-2350, 1986年12月
1983 David Casasent, Wen-Thong Chang, "General Chord Transformation for distortion invariant optical pattern recognition", Applied Optics, Vol.22, pp2087-2094, 1983年12月
Year Paper Title
2011 Wen-Thong Chang, Ming-Ying Tu 2010 “Receiver Design for Distributed Space Time Trellis Codes” NST2010, Tauyen, Taiwan
2011 Wen-Thong Chang, Yao-Wei Tseng 2010 “Hierarchical breadth first search for V-BLAST receiver” NST2010, Tauyen, Taiwan
2011 Wen-Thong Chang, Bing-Chien Li 2009 “Differential transmission scheme for wireless relay networks” NST2009, kaoshiang, Taiwan
2011 Wen-Thong Chang, Chien-Min Wu 2009 “Randomization for cooperative communications” NST2009, Kaoshiang, Taiwan
2011 Wen-Thong Chang, Cheng-ta Lin 2008 “Fractional Frequency Reuse and MIMO for Wimax Performance improvement” NST2008. Fuwei, Taiwan
2011 Wen-Thong Chang, Chen-wei Liu 2008 “Frame structure and path selection for 2-hop and cooperative communication in 802.16” NST2008, Fuwei, Taiwan
2011 Wen-Thong Chang, Shu-Wei Chang 2007 “OFDMA uplink frequency synchronization”ISCOM Nov 2007,Taipei,Taiwan
2011 Wen-Thong Chang, Hsiang-Wen Chen 2007 “Peak-to-Average Power Ratio Reduction of OFDM Based on Adaptive Peak Reduction Carriers” IEEE PIMRC Athen, Greece
2011 Wen-Thong Chang, Chia-Hua wei 2003 “Estimation of rate distortion parameter in video coding” WCE 2003 Tainan Taiwan.
2011 Lansing Lai, Chengpai Yeh, Wen-Thong Chang 2004 “Switching level optimization for adaptive modulation” IEEE VTC-2004 spring, Milan Italy.
2011 Ching-Feng Lin, Wen-Thong Chang 2005 “Dynamic Power allocation in down link multicode CDMA multimedia communication system” WWC 2005, San Francisco, CA USA
2011 Ching-Feng Lin, Wen-Thong Chang, Ching-Yi Li 2005 ”Design of a chaos visual encryption mechanism in JPEG2000 medical image” IEEE Int’l Conf. on System & Signal, Kaoshung Taiwan.
2011 Wen-Thong Chang, Chi-Wei Chang 2005 “Computationally efficient algorithm for sub-carrier, bit and power allocation” ISCOM2005 Kaoshung Taiwan
2011 Wen-Thong Chang, I-Hao Shih 2005 “OFDM block iterative decision feedback equalizer for multipath channel” ISCOM2005 kaoshung Taiwan
2011 Ching-Feng Lin, Wen-Thong Chang 2006 “Design of downlink power control scheme in multicode CDMA mobile medicine system” IEEE ISWPC, Phuket, Thailand
2011 Chin-Feng Lin, Wen-Thong Chang, Hsin-Wang Lee 2006 “Design of a downlink power assignment mechanism in unequal error protection multi-code CDMA mobile medicine system” WWC 2006, San Francisco, CA USA
2011 Chin-Feng Lin, Wen-Thong Chang, Hsin-Wang Lee 2006 “Design of a downlink power assignment mechanism in unequal error protection multi-code CDMA mobile medicine system” WWC 2006, San Francisco, CA USA
2011 Huai-Chang Wu, Wen-Thong Chang 2006 “Spread Spectrum Image Steganography Improvement with Iterative Decoding Feedback Technique” 5th Asian-European Workshop on Information Theory (AEW5), Oct 2006 Jeju, South Korea
2011 Wen-Thong Chang, Chi-Wei Chang 2006 “Computationally Efficient Algorithm For Sub-carrier, Bit, and Power Allocation” IEEE ISPACS, pp646-649 Dec 2006 Yonago Tottori, Japan
2011 Wen-Thong Chang, Hsiang-Wen Chen 2006 “Peak-to-Average Power Ratio reduction of OFDM Based on Adaptive Peak Reduction Carriers”ISCOM Dec 2006, kaoshung, Taiwan
2011 Wen-Thong Chang, I-chen Lin 2006 “Channel Prediction in OFDM System” ISCOM Dec 2006, Kaoshung, Taiwan
0000 Wen-Thong Chang,Chia-Hua Wei,Chih-Hao Sun, "Two-level rate control in wireless Video Transmission", CVGIP 2002,Hsinchu Tai, 2002年12月
0000 Ching-chih Kuo,Wen-Thong Chang, "Reduction of Quantization Error With Adaptive Wiener Filter in Low Bit Rate Coding", EUSIPCO 2002,Toulouse France, 2002年12月
0000 Wen-Thong Chang, "Interactive feedback message and Error resilience in Video Transmission", WCE2002,hsinchu Taiwan, 2002年12月
0000 Kei-Pon Kao,Wen-Thong Chang, "Channel Estimation in CDMA2000 System", ISCOM 2001,Tainan,Taiwan., 2001年12月
0000 Wen-Thong Chang, "The Application of CIC Filter in Rate Change in Digital Communications", WCE2001 Taipei Taiwan, 2001年12月
0000 Wen-Thong Chang, "Reduction of Quantization Error With Adaptive Wiener Filter in Low Bit Rate Coding", WCE 2001 ,Taipei Taiwan, 2001年12月
0000 Kuei-Fang Lee,Wen-Thong Chang, "2000'Adaptive Interpolator in Lifting scheme for lossless coding", 'VCIP 2000,Perth Australia, 2000年12月
0000 Wen-Jen Ho,Wen-Thong Chang, "'Adaptive Interpolator in Lifting scheme for lossless coding", 'VCIP2000,Perth Australia, 2000年12月
0000 Ching-Chih Kuo, Wen-Thong Chang, "Reduction of Quantization Error in DCT-Based Image Coding'", IPPR conference on CVGIP, pp611-614, Taiwan , 1999年12月
0000 Chih-Yeh Tasi, Wen-Thong Chang, "'Investigation of the Performance Boost by MMX Technology in Video Coding", IPPR conference on CVGIP, pp430-434, Taiwan , 1999年12月
0000 Kun-Che Chung, Wen-Thong Chang, "'Back-Ward Motion Estimation for Frame Interpolation'", ISCE'98, Taiwan , 1998年12月
0000 Jen-Horn Chen, Wen-Thong Chang, "'Hierarchical Evaluation of Error Function in Block Matching'", IPPR conference on CVGIP, Taiwan , 1998年12月
0000 Shih-Heng Chen, Wen-Thong Chang, "'QAM and VSB with Filter Bank Multiplexing'", Workshop on Consumer Electronics:Digital Video and Multimedia, Taiwan , 1997年12月
0000 "Er-Tai Chen, Wen-Thong Chang, "'Pyramid Structure for Scaleable Coding'", Intl. Symposium Mmutimedia Image Processing'97, Taiwan , 1997年12月
0000 Bo-Wei Liu, Wen-Thong Chang, "'Error Estimation in Scaleable Coding'", IPPR conference on CVGIP, Taiwan, 1997年12月
0000 Wen-Jen Ho, Wen-Thong Chang, "'Integer Pyramid for Lossless Image Compression'", IPPR conference on CVGIP, Taiwan, 1997年12月
0000 Pei-Chuan Liu, Wen-Zen Shen, Wen-Thong Chang, "'Wiener Filter for Zoom Parameter Estimation in Three-Parameter Motion Model'", SPIE VCIP'97, San Jose, USA, 1997年12月
0000 Wei-Jiang Chen, Wen-Thong Chang, "'Scalable Image Coding with Lagrange Interpolation Filter", HD-Media'96, Taiwan , 1996年12月
0000 Yu-Sheng Lin, Wen-Thong Chang, "'Block-Based Frame Interpolation Under MPEG Environment", HD-Media'96 Taiwan, 1996年12月
0000 Wen-Jen Ho, Wen-Thong Chang, "'Wavelet Representation for Multigrid Computation in Surface Interpolation Problem'", ICPR'13, Vienna, Austria , 1996年12月
0000 Cheng-Kai Huang, Chuang Pai, Wen-Thong Chang, "'Shape from Shading Using Ritz Method with Tent Basis'", ICPR'13, Vienna, Austria , 1996年12月
0000 Chuang Pai, Wen-Thong Chang, "'Shape from Shading using Ritz Method with Cubic Spline Basis'", IPPR Conference on CVGIP, Taiwan, 1996年12月
0000 Wen-Jen Ho, Wen-Thong Chang, "Interpolation Filter Design for Multiresolution Interpolative DPCM", IPPR Conference on CVGIP, Taiwan , 1995年12月
0000 Shyn-Ren Chen, Wen-Thong Chang, "Temporal Frame Interpolation Under MPEG Environment", HD-Media'95, Taipei, Taiwan, 1995年12月
0000 Vincent Chow, Wen-Thong Chang, "VSB Digital Transmission System for The Terrestrial HDTV Broadcasting", HD-Media'95, Taipei, Taiwan, 1995年12月
0000 Chen-Kai Huang, Chuang Pai,Wen-Thong Chang, "Shape from Shading using Ritz Method with Tent Basis", IPPR Conference on CVGIP, Taiwan, 1996年12月
0000 Ching-Chin Kuo, Wen-Thong Chang., "epermutation of MPEG bit stream for QAM Transmission", Telecommunication Symposium. Chiayi, Taiwan , 1994年12月
0000 Li-Shian Jao, Wen-Thong Chang, "Regulation of Video Rate in a Multiplexed Environmen", HD-Media'94, Taipei, Taiwan, 1994年12月
0000 Wen-Jen Ho, Ming-Haw Yaou, Wen-Thong Chang, "Surface Interpolation with Spline Wavelet Bases of Different Orders", IPPR Taiwan , 1994年12月
0000 Ching-Chin Kuo, Wen-Thong Chang, "Nonuniform Embedded QAM for Video Transmission", IEEE Int. Conf. on Consumer Electronics. Chicago,USA, 1994年12月
0000 "Shiang-Whea Lin, Wen-Thong Chang, "Multiresolution Coding for Digital Transmission", SPIE. Symposium on Visual Communications and Image Processing, Boston USA, 1993年12月
0000 Wen-Hsuan Shao, Wen-Thong Chang, "Quantizer Adaptation in ATM Environment", HD-Media'93 Taipei, Taiwan., 1993年12月
0000 Ming-Haw Yaou, Wen-Thong Chang, "Wavelet Transform in Surface Interpolation", IEEE. System, Man and Cybernetics Conference,Paris, France, 1993年12月
0000 Wen-Thong Chang, "Architecture for Global Motion Parameter Computation in Video Coding", IEEE Intl. Conf. on Consumer, chicago, USA, 1993年12月
0000 Wen-Jen Ho, Wen-Thong Chang, "Wavelet and Transform Representation", Telecommunication Symposium, Hsinchu, Taiwan, 1993年12月
0000 Wen-Thong Chang, Chien-Yu Lai., "Buffer Control with Block Statistics in Quantization Stepsize Adaptation", IEEE. Workshop on Visual Signal Processing and Communications, Raleigh, NC USA, 1992年12月
0000 Wen-Thong Chang, Chi-Wei Chang, "Rule-Based System for Chinese Newspaper Segmentation", EUSIPCO-92, Brussels, Belgium, 1992年12月
0000 Rong-Jiann Chien, Wen-Thong Chang, "Global Motion Parameter Estimation for Video Coding"", HD-Media'92, Taipei, Taiwan, 1992年12月
0000 Ming-Haw Yaou, Wen-Thong Chang, "Design of M-band Filter Banks based on Wavelet Transform", SPIE Symposium on Visual Communications and Image Processing, Boston, USA, 1991年12月
0000 Chi-Wei Chang, Wen-Thong Chang, "An Expert System for Chinese Newspaper Segmentation", IPPR Conference on CVGIP, Taiwan, 1991年12月
0000 Wen-Thong Chang, Shao-An Lin, "An Incremental Model for Target Maneuver Estimation", SPIE Symposium on Signal and Data Processing of Small Targets, Orlando, USA, 1991年12月
0000 Wen-Thong Chang, Kai-Hsiang Chou, "Hierarchical Object Boundary Detection and Descrption", SPIE Symposium on Curves and Surface in Computer Vision and Graphics, San Jose, USA, 1990年12月
0000 Wen-Thong Chang, Ming-Shing Lin, "Quadrature Mirror Filter Design by Chebyshev Approximation", IASTED adaptive and knowledge-based control and signal processing, Honolulu, Hawai , USA , 1990年12月
0000 Hsun-Chang Hsieh, Wen-Thong Chang, "Computation Network for Visible Surface Reconstruction", SPIE Symposium on Visual Communications and Image Processing, Lausanne, Switzerland , 1990年12月
0000 Wen-Thong Chang, Hsun-Chang Hsieh, Wen-Hsing Lai, "Second Order Smoothness Measure in Curve Fitting", National Computer conference, Taipei,Taiwan, 1990年12月
0000 Wen-Thong Chang, Mign-Hua Yao, "RHDAMS:A Region-Based Hierarchical Document Analysis and Management System", IASTED adaptive and knowledge-based control and signal processing, Honolulu, Hawaii, USA., 1989年12月
0000 Jyh-Shyue Hwu, Wen-Thong Chang, "3-D Motion Direction Estimation by Optical Flow", National Telecommunication Symposium, Taipei, Taiwan , 1989年12月
0000 Hsun-Chang Hsieh, Wen-Thong Chang, "Visual Surface Reconstruction Using Tent Function", National Computer conference, Taipei, Taiwan, 1989年12月
0000 Ming-Hua Yao, Wen-Thong Chang, "Efficient Algorithms for Document Image Segmentation", National Telecommunication Symposium, Taipei, Taiwan, 1989年12月
0000 Shih-Wen Shieh, Wne-Thong Chang, "Subpixel Corner Matching for 3-D Motion Estimation", National Telecommunication Symposium, Taipei, Taiwan, 1989年12月
Project Category Year Project Title Participartor Job Title Period Unit
Research Projects 96 SNR estimation and adaptive modulation in broadband wireless access 2007.08 ~ 2008.07 NSC
Research Projects 95 2006.08 ~ 2007.07
Research Projects 94 2005.08 ~ 2006.07
Industrial Collaboration 94 2004.12 ~ 2006.03
Research Projects 93 2004.08 ~ 2005.07
Research Projects 92 2003.08 ~ 2004.07
Research Projects 91 2002.08 ~ 2003.07
Research Projects 91 2002.08 ~ 2003.07
Research Projects 90 2001.08 ~ 2002.07
Research Projects 90 2001.08 ~ 2002.07
Publish Date Patent Title
2011/08/01
Year Research Title Publish Date Authors
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
2011 2011-08-02
0000 Wne-Thong Chang, "Variable bit rate video transmission with discrete multi-tone multiplex", NSC-89-2213-E-009-133, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Design of Interpolator based on Polynomial Signal model", NSC-88-2213-E-009-017, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Scalable Coding with Multi-state Prediction and Progressive Quantization", NSC-87-2213-E-009-090, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Motion Parameter Estimation with Wiener Filter in Three-Parameter Motion Model", NSC-87-2213-E-009-096, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Multigrid Computational Structure Based on Wavelet Representation", NSC-86-2213-E-009-059, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Frame Interpolation and Slow Motion under MPEG Environment", NSC-85-2213-E-009-066, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Interpolative DPCM Pyramid for Signal Representation", NSC-85-2213-E-009-018, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Fast Surface Reconstruction Using Wavelet Transform based on high order spline function", NSC-84-2213-E-009-125, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Half-Band filter based on orthogonal scaling function for image interpolation", NSC-84-2213-E-009-105, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Fast-surface reconstruction using multi-resolution wavelet transform", NSC-83-0404-E-009-064, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Application of multi-resolution codec in digital broadcasting system", NSC-83-0404-E-009-020, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Perfect reconstruction multirate filter bank design based on vector space projection theorem", NSC-82-0404-E-009-0247, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Application of 2-D perfect reconstruction fiter bank for HDTV coding", NSC-82-0404-E-0909-173, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Subband coding for HDTV application", NSC-81-0404-E-009-029, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Pyramid computing structure for surface reconstruction", NSC-81-0404-E-009-014, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Resistive Network model for surface reconstruction", NSC-80-0404-E-009-024, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "An efficient design for half-band filter by Chebyshev approximation for subband coding", NSC-79-0404-E-009-014, 2005年12月 1970-01-01
0000 Wne-Thong Chang, "Model-based representation and modeling of planner geometric object", NSC-78-0404-E-009-020, 2005年12月 1970-01-01
Country School Name Department Degree Duration
U.S.A.  Carnegie-Mellon Univ. Ph.D.  1985.12 ~ 1985.12
U.S.A. State University of New York  M.S. 1981.12 ~ 1981.12
Taiwan  National Chiao-Tung University  B.S.  1979.12 ~ 1979.12