Editor-in-Chief for the following journals

  1. Editor-in-Chief for APSIPA Trans. on Signal and Information Processing (2022-2023)
  2. Editor-in-Chief for IEEE Trans. on Information Forensics and Security (2012-2014)
  3. Co-Editor-in-Chief for Journal of Visual Communication and Image Representation (1997-2011)

Editorial Board Member for the following Journals

  1. Editorial Board Member for the APSIPA Transactions on Signal and Information Processing (2020-2022)
  2. Senior Editorial Board Member for the IEEE Signal Processing Magazine (2017-2019)
  3. Editor for Springer LNCS Transactions on Data Hiding and Multimedia Security (2015-Present)
  4. Editorial Advisory Board for the Journal of Information Security and Applications (JISA) (2015-Present)
  5. Senior Editorial Board Member for the IEEE Journal of Selected Topics on Signal Processing (2015-2017)
  6. Associate Editor for IEEE Transactions on Information Forensics and Security (2011)
  7. Associate Editor, Security and Communication Networks, John Wiley and Sons Inc. (2007-2011)
  8. Editor for Springer LNCS Transactions on Data Hiding and Multimedia Security (2005-2011)
  9. Editorial Board Member for EURASIP Journal on Advances in Signal Processing (2000-2010)
  10. Editorial Board Member for Journal of Electrical and Computer Engineering (2008-2010)
  11. Editorial Board Member for the Journal of Advances of Multimedia (2006-2010)
  12. Editor for the Journal of Information Science and Engineering (2000-2007)
  13. Editor for the IEEE Signal Processing Magazine (2003-2004)
  14. Associate Editor for IEEE Transactions on Acoustic and Speech Processing (2000-2002)
  15. Associate Editor for IEEE Transactions on Image Processing (1995-1997)
  16. Associate Editor for IEEE Transactions on Circuits and Systems for Video Technology (1995-1997)
  17. Editorial Board Members of Journal of Visual Communication and Image Representation (1993-1996)

Guest Editor for the following Special Issues in Journals

  1. Guest Editor for the Special Issue on 3D Multimedia in the Journal of Information Science and Engineering (JISE), 2015
  2. Guest Editor for the Special Issue on Multimedia Storage and Archiving Systems in the Journal of Visual Communication and Image Representation, December 1998
  3. Guest Editor for the Special Issue on High Fidelity Media Processing in the Journal of Visual Communication and Image Representation, March 1998
  4. Guest Editor for the Special Issue on Still and Video Image Compression of Journal of Visual Communication and Image Representation, December 1994

Service in IEEE Technical Committees

  1. IEEE Signal Processing Society Award Board Member (January 2020 – December 2022)
  2. IEEE Signal Processing Society Board of Directors Member at Large (January 2012 – December 2014)
  3. IEEE Signal Processing Society Image, Video and Multidimensional Signal Processing Committee (January 2011 – December 2013)
  4. IEEE Communication Society Multimedia Communication Technical Committee (January 2009-Present)
  5. IEEE Signal Processing Society Information Forensics and Security Technical Committee (January 2008-December 2014).
  6. IEEE Circuits and Systems Society Multimedia Systems and Applications Technical Committee (July 2006-Present).
  7. IEEE Circuits and Systems Society Visual Signal Processing & Communications Technical Committee (July 1995-Present).
  8. IEEE Signal Processing Society Image and Multidimensional Signal Processing Technical Committee (May 1998 – April 2004).
  9. IEEE Signal Processing Society Multimedia Signal Processing Technical Committee (June 1997 – 2002, January 2004-December 2007).

Conference Chairs/Advisory Board

  1. Conference Co-Chair for the IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR), San Jose, California, USA, August, 2022.
  2. Conference Co-Chair for the APSIPA Annual Summit and Conference, Auckland, New Zealand, December 7-10, 2020.
  3. Conference Co-Chair for the International Conference on Image Processing (ICIP), Taipei, Taiwan, September 22-25, 2019.
  4. Conference Co-Chair for the International Conference of Multimedia and Expo (ICME), San Diego, California, USA, July 23-27, 2018.
  5. Conference Co-Chair for the APSIPA Annual Summit and Conference, Jeju, Korea, December 13-16, 2016.
  6. Chairs of Advisory Committee for the APSIPA Annual Summit and Conference, Hong Kong, December 16-19, 2015.
  7. Conference Co-Chair for the APSIPA Annual Summit and Conference, Siem Reap, City of Angkor Wat, Cambodia, December 9-12, 2014.
  8. Program Co-Chair for the 8th Network and System Security (NSS 2014) Xi’an, China, October 16-18, 2014.
  9. Honorary Chair for the 10th Intelligent Information Hiding and Multimedia Signal Processing, Kitakyushu, Japan, August 27-29, 2014.
  10. International Steering Committee for the 1st International Conference on Intelligent Green Building and Smart Grid (IGBSG), National Taiwan University of Science and Technology, Taipei, Taiwan, April 23-25, 2014.
  11. Steering Committee Member of the International Conference on Frontiers of Information Technology (FIT), Islamabad, Pakistan, December 16~18, 2013.
  12. Conference Co-Chair for the 30th Picture Coding Symposium, San Jose, California, USA, Dec. 8-11, 2013.
  13. Advisory Committee for IVMSP Workshop: 3D Image/Video Technologies and Applications, KINTEX, Ilsan, South Korea, October 9-11, 2013.
  14. Conference Co-Chair for the Second International Workshop on Network Forensics, Security and Privacy (NFPS), Philadelphia, USA, July 8, 2013.
  15. International Advisory Committee for Network and System Security (NSS 2013) Madrid, Spain, June 3-4, 2013.
  16. Advisory Board for 2nd IEEE International Conference on Informatics, Electronics & Vision (ICIEV), Dhaka, Bangladesh, May 17-18, 2013.
  17. Conference Co-Chair for the 4th International Symposium on Cyberspace Safety and Security (CSS 2012), Deakin University Melbourne Burwood Campus, Melbourne, Australia, December 12-13, 2012.
  18. Conference Co-Chair for the APSIPA Annual Summit and Conference, Hollywood, California, USA, December 3-6, 2012.
  19. Conference Co-Chair for Visual Communications and Image Processing (VCIP), San Diego, California, USA, November 27-30, 2012.
  20. International Advisory Committee for the 8th International Conference on Information, Communications and Signal Processing (ICICS), Singapore, December 13-16, 2011.
  21. Conference Co-Chair for the APSIPA Annual Summit and Conference, Xian, China, October 18-21, 2011.
  22. Honorary Co-Chair for the International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), Dalian, China, October 14-16, 2011
  23. General Conference Co-Chair of the Pacific-Rim Conference on Multimedia (PCM-2010), Shanghai, China, September 21-23, 2010.
  24. International Advisory Committee for the IEEE Conference on Industrial Electronics and Application (ICIEA), Taichung, Taiwan, June 15-17, 2010.
  25. International Advisory Board for the International Conference on Signal and Image Processing Applications (ICSIPA), Kuala Lumpur, Malaysia, Nov. 2009
  26. Advisory Committee Chair for the IEEE International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), Kyoto, Japan, September 12-14, 2009.
  27. Honorary Chair for the IEEE International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), Harbin, China, August 15-17, 2008.
  28. Technical Program Vice co-Chairs for the IEEE International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), Pasadena, CA, USA, December 18-20, 2006.
  29. Conference Co-Chair for the Conference on Multimedia Systems and Applications VIII (IT101) in SPIE Optics East, Boston, MA, USA, October 23-26, 2005.
  30. Conference Co-Chair for the Conference on Multimedia Systems and Applications VII (IT101) in SPIE Optics East, Philadelphia, PA, USA, September 12-16, 2004.
  31. Conference Chair for the Conference on Visual Communications and Image Processing in IS&T/SPIE’s 14th International Symposium on Electronic Imaging: Science and Technology, San Jose, California, January 21-25, 2002.
  32. Conference Co-Chair for the Conference on Internet Multimedia Management Systems in SPIE’s International Symposium on the Convergence of Information Technologies and Communications (ITCOM), Denver, Colorado, August 20-24, 2001.
  33. Conference Co-Chair for the Conference on Internet Multimedia Management Systems in SPIE’s International Symposium on Voice, Video and Data Communications, Boston, MA, November 5-8, 2000.
  34. Conference Co-Chairs for the International Conference on Computer Assisted Instruction and Internet Computing, Tamkang University, Tamshui, Taipei Hsien, Taiwan, October 23-24, 2000.
  35. Conference Co-Chair for 1999 International Symposium on Multimedia Information Processing (ISMIP’99), Taiwan University of Science and Technology, December 14-16, 1999.
  36. Conference Co-Chair for Multimedia Storage and Archiving Systems IV in SPIE’s International Symposium on Voice, Video, and Data Communications, Boston, MA, September 19-22, 1999.
  37. Conference Chair for the IEEE Signal Processing Society Workshop on Multimedia Signal Processing, Redondo Beach, CA, Dec. 7-9, 1998.
  38. Conference Co-Chair for Multimedia Storage and Archiving Systems III in SPIE’s International Symposium on Voice, Video, and Data Communications, Boston, MA, Nov. 1-6, 1998.
  39. Conference Chair for Multimedia Storage and Archiving Systems II in SPIE’s International Symposium on Voice, Video, and Data Communications, Dallas, TX, Nov. 2-7, 1997.
  40. Conference Chair of the Conference on “Multimedia Storage and Archiving Systems” in Symposia at SPIE’s Photonics East, Boston, MA, Nov. 18-22, 1996.
  41. Conference Chair of the Conference on “Digital Image Storage and Archiving Systems” in Symposia SPIE’s Photonics East, Philadelphia, PA, Oct. 23-26, 1995.

Technical/Program Committee Member and Chair

  1. Technical Program Committee (TPC) Member for the APSIPA ASC, Hong Kong, December 16-19, 2015.
  2. Technical Program Committee (TPC) Member for the Workshop on Information Forensics and Security (WIFS), Rome, Italy, November 16-19, 2015.
  3. Conference Organization Committee Member for International Workshop on Digital Watermarking (IWDW), Tokyo, Japan, October, 2015.
  4. Technical Program Committee (TPC) Member for the 9th International Symposium on Image and Signal Processing and Analysis, Edinburgh, UK, September 6-8, 2015.
  5. Technical Program Committee (TPC) Member for the 4th IEEE WoWMoM Workshop on Video Everywhere (VidEv), Boston, USA, June 14-17, 2015.
  6. Technical Program Committee (TPC) Member of the Workshop on Digital Content, Digital Life, and Human Computer Interaction (WDDH), Taichung, Taiwan, Dec. 12-14, 2014.
  7. Conference Organization Committee Member for International Workshop on Digital Watermarking (IWDW), Taiwan, October, 2014.
  8. Technical Program Committee (TPC) Member for the 2nd IEEE WoWMoM Workshop on Video Everywhere (VidEv), Sydney, Australia, June 15-17, 2014.
  9. Technical Program Committee (TPC) Member for International Workshop on Digital Watermarking (IWDW), Auckland, New Zealand, October 1-4, 2013.
  10. Program Committee (PC) Member of the 8th Int’l Symposium on Image and Signal Processing and Analysis (ISPA 2013), Trieste, Italy, September 4-6, 2013.
  11. Technical Program Committee (TPC) Member for the 1st Workshop on Green Multimedia: Energy-efficient Multimedia Computing, Communication and Presentation, San Jose, California, USA, July 15-19, 2013.
  12. Technical Program Committee (TPC) Member for the 2nd IEEE WoWMoM Workshop on Video Everywhere (VidEv), Madrid, Spain, June 4-7, 2013.
  13. Review Committee Member for the IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, May 19-23, 2013.
  14. Technical Program Committee (TPC) Member of the Fourth IEEE International Workshop on Information Forensics and Security (WIFS), Tenerife, Canary Islands, Spain, December 2-5, 2012.
  15. Technical Program Committee (TPC) Member for International Workshop on Digital Watermarking (IWDW), Shanghai, China, October 31-November 3, 2012.
  16. Technical Program Committee (TPC) Member for ACM Multimedia, Nara, Japan, October 29-November 2, 2012.
  17. Technical Program Committee (TPC) Member for IEEE International Conference on Multimedia & Expo (ICME), Melbourne, Australia, July 9–13, 2012.
  18. Technical Program Committee (TPC) Member for the 1st IEEE WoWMoM Workshop on Video Everywhere (VidEv), San Francisco, California, USA, June 25, 2012
  19. Review Committee Member for the IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, Korea, May 20-23, 2012.
  20. Technical Program Co-Chair, IEEE International Workshop on Information Forensics and Security (WIFS’11), Foz do Iguacu, Brazil, Nov. 16-19, 2011.
  21. Technical Program Committee (TPC) Member for the Visual Communications and Image Processing (VCIP) Conference, Tainan, Taiwan, November 6-9, 2011.
  22. Program Committee Member for the 6th International Workshop on Mobile and Networking Technologies for social applications (MONET), Crete, Greece, Oct. 16-21, 2011.
  23. Technical Program Committee (TPC) Member for International Workshop on Digital Watermarking (IWDW), Atlantic City, New Jersey, October 23-26, 2011.
  24. Technical Program Committee (TPC) Member for the CAD/Graphics Conference, Jinan, China, September 15-17, 2011.
  25. Technical Program Committee (TPC) Member for the 19th European Signal Processing Conference (EUSIPCO 2011), Barcelona, August 29-September 2, 2011.
  26. Technical Program Committee (TPC) Member of the Workshop on Content Protection and Forensics (CPAF 2011), Barcelona, Spain, July 11-15, 2011.
  27. Technical Program Committee (TPC) Member of the IEEE International Conference on Multimedia and Expo (ICME), Barcelona, Spain, July 11-15, 2011.
  28. Technical Program Committee (TPC) Member of the International Workshop on Genomic Signal Processing (GSP), Bucharest, Romania, June 27-28, 2011.
  29. International Advisory Committee (IAC) Member for the IEEE Conference on Industrial Electronics and Application (ICIEA), Beijing, Taiwan, June 21-23, 2011.
  30. International Program Committee (IPC) Member for the IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA 2011), Washington DC, USA, May 16-18, 2011.
  31. Technical Program Committee (TPC) Member for the International Conference on Ubiquitous Information Management and Communication (ICUIMC), SKKU, Suwon, Korea, January 14-15, 2011.
  32. Technical Program Committee (TPC) Member for the APSIPA Annual Summit and Conference, Singapore, December 14-17, 2010.
  33. Technical Program Committee (TPC) Member for the IEEE International Workshop on Information Forensics and Security (WIFS), Seattle, USA, December 12-15, 2010.
  34. International Steering Committee (ISC) Member for the International Conference on Information and Communication Technology Convergence (ICTC), November 17-19, 2010.
  35. Technical Program Committee (TPC) Member for the ACM Multimedia, Firenze, Italy, October 25-29, 2010.
  36. Program Committee Member for the 5th International Workshop on Mobile and Networking Technologies for social applications (MONET), Crete, Greece, Oct. 25-29, 2010.
  37. Technical Program Committee (TPC) Member for International Workshop on Digital Watermarking (IWDW), Korea, October 1-3, 2010.
  38. Technical Program Committee (TPC) Member for the 18th European Signal Processing Conference (EUSIPCO 2010), Aalborg, August 23-27, 2010.
  39. Technical Program Committee (TPC) Member for the International Conference on Multimedia & Expo (ICME), Singapore, July 19-23, 2010.
  40. Technical Program Committee (TPC) Member for the Conference on Visual Communications and Image Processing (VCIP), Huang Shan, An Hui, China, July 11-14, 2010.
  41. International Program Committee (IPC) for the IASTED International Conference on Internet and Multimedia Systems and Applications (AfricaIMSA 2010), Sharm El Sheikh, Egypt, March 15-17, 2010.
  42. Technical Program Committee (TPC) Member for the IS&T/SPIE Visual Information Processing and Communications (VIPC), San Jose, CA, USA, January 17-21, 2010.
  43. Technical Program Committee (TPC) Member for IEEE International Workshop on Information Forensics and Security (WIFS), London, United Kingdom, December 6-9, 2009.
  44. Technical Program Committee (TPC) Member for the ACM Conference on Management of Emergent Digital Ecosystems (MEDES), Lyon, France, Oct. 27-30, 2009.
  45. Technical Program Committee (TPC) Member for IEEE International Workshop on Multimedia Signal Processing (MMSP), Brazil, October 5-7, 2009.
  46. Technical Program Committee (TPC) Member for the Asia-Pacific Signal and Information Processing Association (APSIPA), Sapporo, Japan, Oct. 5-7, 2009.
  47. Technical Program Committee (TPC) Member for the 8th International Workshop on Digital Watermarking (IWDW09), Surrey, United Kingdom, Aug. 24-26, 2009.
  48. Technical Program Committee (TPC) Member for the European Signal Processing Conference (EUSIPCO), Glasgow, Scotland, Aug. 24-28, 2009.
  49. Technical Program Committee (TPC) Member for the IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA), Honolulu, Hawaii, USA, Aug. 17-19, 2009.
  50. Program Committee Member for the Conference on Applications of Digital Image Processing XXXII, Part of the SPIE International Symposium on Optical Engineering and Applications, San Diego, CA., USA, 2-6 August, 2009.
  51. Technical Program Committee (TPC) Member for the International Conference on Signal Processing and Multimedia Applications (SIGMAP), Milan, Italy, July 7-10, 2009.
  52. Technical Program Committee (TPC) Member for the first IEEE Workshop on Media Information Analysis for Personal and Social Applications (WMAPS), New York City, USA, July 3, 2009.
  53. Technical Program Committee (TPC) Member for the IEEE International Workshop on Genomic Signal Processing and Statistics (GENSIPS), Minneapolis, Minnesota, USA, May 17-21, 2009.
  54. International Program Committee Member for International Conference on Imaging Theory and Applications (IMAGAPP), Lisboa, Portugal, February 5-8, 2009.
  55. Program Committee Member for the Visual Communications and Image Processing, as Part of the IS&T/SPIE International Symposium on Electronic Imaging, San Jose, CA, January 18-22, 2009.
  56. Technical Program Committee (TPC) Member for the Indian Conference on Computer Vision, Graphics & Image Processing (CVGIP), Bhubaneswar, India, December 16-19, 2008.
  57. Program Committee (PC) Member for the first International Workshop on Video Mining (VM08), Pisa, Italy, December 15, 2008.
  58. Technical Program Committee (TPC) Member, the 5th International Conference on Soft Computing as Trans-disciplinary Science and Technology (CSTST) Paris/Cergy Pointoise, France October 26-30, 2008.
  59. Technical Program Committee (TPC) Member for International Workshop on Digital Watermarking (IWDW), Busan, Korea, November 10-12, 2008.
  60. Technical Program Committee (TPC) Member for the International Workshop on Multimedia Signal Processing (MMSP), Cairns, Queensland, Australia, October 8-10, 2008.
  61. Technical Program Committee (TPC) for EUSIPCO 2008 (European Conference on Signal Processing 2008), Lausanne, Switzerland, August 25-29, 2008.
  62. International Program Committee (IPC) Member for the IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA), Kailua-Kona, USA, August 18-20, 2008.
  63. Program Committee Member for the Conference on Applications of Digital Image Processing XXXI, Part of the SPIE International Symposium on Optical Engineering and Applications, San Diego, CA., USA, 10-14 August, 2008.
  64. Program Committee for the International Joint Conference on e-Business and Telecommunications (ICETE)-Signal Processing and Multimedia Applications, (SIGMAP), Porto, Portugal, July 26-29, 2008.
  65. Program Committee Member for the Visual Communications and Image Processing, as Part of the IS&T/SPIE International Symposium on Electronic Imaging, San Jose, CA, January 26-31, 2008.
  66. Advisory Committee Member for the Asia-Pacific Workshop on Visual Information Processing (VIP), National Cheng-Kung University, Tainan, Taiwan, December 15-17, 2007.
  67. Advisory Program Committee Member for the IEEE Workshop on Scalable Video Coding & Transport (SVCT), Taichung, Taiwan, December 10-12, 2007.
  68. Technical Program Committee for the IEEE International Conference on Intelligent Signal Processing & Communication Systems (ISPACS), Xiamen, China, December, 2007.
  69. Program Committee Member for the IEEE International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), Kaohsiung, Taiwan, November 26-28, 2007.
  70. Technical Program Committee Member for International Workshop on Digital Watermarking (IWDW), Guangzhou, China, November 8-10, 2007.
  71. Program Committee Member for the 2nd International Workshop on Mobile and Networking Technologies for social applications (MONET), Lisbon, Portugal, October 28-November 2, 2007.
  72. Technical Committee for 2007 IEEE International Workshop on Multimedia Signal Processing (MMSP), Chania, Crete, Greece, October 1-3, 2007.
  73. Program Committee for the SPIE Conference on Multimedia Systems and Applications IX, Part of SPIE’s International Symposium on Optics East, Boston, MA, September 9-12, 2007.
  74. Program Committee Member for the SPIE Conference on Applications of Digital Image Processing XXX, Part of the SPIE International Symposium on Optics and Photonics, San Diego, CA., USA, 26-31 August, 2007.
  75. Program Committee for the International Joint Conference on e-Business and Telecommunications (ICETE)-Signal Processing and Multimedia Applications, (SIGMAP), Barcelona, Spain, July 28-31, 2007.
  76. Program Committee for the SPIE Visual Communications and Image Processing, as Part of the IS&T/SPIE International Symposium on Electronic Imaging, San Jose, CA, January 28-February 1, 2007.
  77. Program Committee for International Computer Symposium, Taipei, Taiwan, Dec. 4-6, 2006.
  78. Technical Program Committee for International Workshop on Digital Watermarking (IWDW), Jeju Island, Korea, November 8-10, 2006.
  79. Program Committee for the Conference on Multimedia Systems and Applications IX, Part of SPIE’s International Symposium on Optics East, Boston, MA, October 1-4, 2006.
  80. Technical Committee of the 14th European Signal Processing Conference (EUSIPCO), Florence, Italy, September 4-8, 2006.
  81. Technical Program Committee for the 6th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), Vancouver, Canada, August 27-30, 2006.
  82. Program Committee of Picture Coding Symposium (PCS-2006), Beijing, China, April 24-26, 2006.
  83. Technical Committee of the 15th International Packet Video Workshop (PV2006), Hangzhou, China, April 20-21, 2006.
  84. Program Committee for the Conference on Wireless Sensing and Processing in SPIE Defense and Security Symposium, Orlando, FL., April 17-18, 2006.
  85. Program Committee for the Conference on Visual Communications and Image Processing as Part of the IS&T/SPIE International Symposium on Electronic Imaging, San Jose, CA, January 15-19, 2006.
  86. Program Committee for the 7th ACM SIGMM International Workshop on Multimedia Information Retrieval (MIR) Workshop, Singapore, November 11-12, 2005.
  87. Technical Program Committee for IEEE International Workshop on Multimedia Signal Processing, Shanghai, China, October 30-November 2, 2005.
  88. Program Committee for the Conference on Internet Multimedia Management Systems V, Boston, MA, October 23-26, 2005.
  89. Program Committee for the Conference on Applications of Digital Image Processing, XXVIII, San Diego, CA, July 31-August 4, 2005.
  90. Technical Program Committee for the Visual Communications and Image Processing (VCIP), Beijing, China, July 12-15, 2005.
  91. Program Committee for the IEEE International Conference on Multimedia and Expo (ICME), Amsterdam, The Netherlands, July 6-8, 2005.
  92. Program Committee for the Image and Video Communications and Processing, San Jose, CA, January 18-20, 2005.
  93. Technical Program Committee for the International Packet Video Workshop, Irvine, CA, December 13-14, 2004.
  94. Program Committee for the Conference on Internet Multimedia Management Systems V, Philadelphia, PA., October 25-28, 2004.
  95. Program Committee for the Conference on Applications of Digital Image Processing, XXVII, Denver, Colorado, August 2-6, 2004.
  96. Technical Program Vice-Chairs for the 2004 International Conference on Multimedia and Expo (ICME), Taipei, Taiwan, June 27-30, 2004.
  97. Program Committee for the Conference on Digital Wireless Communications VI in SPIE Defense and Security Symposium, Orlando, FL., April 12-13, 2004.
  98. Program Committee for the Conference on Visual Communications and Image Processing, San Jose, CA, January 20-22, 2004.
  99. Program Committee for International Computer Symposium (ICS), HuaLian, Taiwan, Dec. 2002.
  100. Technical Committee for the 2002 International Conference on Multimedia and Expo (ICME), Lausanne, Switzerland, August 26-29, 2002.
  101. Technical Program Committee for the 2002 International Conference on Consumer Electronics, Los Angeles, June 18-20, 2002.
  102. Program Committee for the IEEE Packet Video Workshop, Pittsburg, PA, April 24-26, 2002.
  103. Program Committee for the Conference on Security and Watermarking of Multimedia Contents IV, in IS&T/SPIE’s 14th Annual Symposium on Electronic Imaging: Science and Technology, San Jose, CA, January 21-25, 2002.
  104. Technical Committee for IEEE Workshop on Content-based Access of Image and Video Libraries, Kauai, Hawaii, Dec. 14, 2001.
  105. Program Committee for Applications of Digital Image Processing XXIV, San Diego, CA, July 29-August 3, 2001.
  106. Technical Committee for the IEEE Packet Video Workshop, Taejon, Korea, April 22-24, 2001.
  107. Program Committee for the Conference on Security and Watermarking of Multimedia Contents III, in IS&T/SPIE’s 13th Annual Symposium on Electronic Imaging: Science and Technology, San Jose, CA, January 23-28, 2001.
  108. Program Committee for International Computer Symposium, Chiayi, Taiwan, December 6-8, 2000.
  109. Technical Committee for the Millennium InfoMedia (International Information and Media Communication Systems Conference/Exhibition), Helsinki, Finland, September 20-24, 2000.
  110. Technical Committee for International Conference on Image Processing (ICIP), Vancouver, Canada, September 10-13, 2000.
  111. Technical Committee for the first International Conference on Multimedia and Expo (ICME), New York City, July, 2000.
  112. Technical Committee for the Conference on Visual Communications and Image Processing 2000, Perth, Australia, June 20-23, 2000.
  113. Technical Committee for the IEEE Workshop on Content-based Access of Image and Video Libraries (CBAIVL), Hilton Head, South Carolina, June 16, 2000.
  114. Technical Committee for the IEEE Packet Video Workshop, Sardinia, Italy, May 1-2, 2000.
  115. Program Committee for the Conference on Image and Video Communications and Processing, in IS&T/SPIE’s 12th Annual Symposium on Electronic Imaging: Science and Technology, San Jose, CA, January 23-28, 2000.
  116. Program Committee for IEEE Workshop on Signal Processing Systems (SiPS), Taipei, Taiwan, October 20-22, 1999.
  117. Technical Committee for International Conference on Image Processing (ICIP), Kobe, Japan, Oct. 25-28, 1999.
  118. Program Committee for IEEE International Workshop on Multimedia Signal Processing, Copenhagen, Denmark, September 13-15, 1999.
  119. Technical Committee for the Conference on Applications of Digital Image Processing XXII in SPIE’s Annual meeting, Denver, Colorado, July 18-23, 1999.
  120. Technical Committee for SPIE/IS&T’s 1999 Conference on Visual Communications and Image Processing (VCIP), San Jose, CA, January 23-29, 1999.
  121. Technical Committee for International Conference on Image Processing (ICIP), Chicago, Illinois, Oct. 4-7, 1998.
  122. Technical Committee for SPIE Photonics China: Electronic Imaging and Multimedia Systems, Beijing, China, Sep. 16-19, 1998.
  123. Technical Committee for the Conference on Applications of Digital Image Processing XXI in SPIE’s Annual meeting, San Diego, CA., 19-24 July, 1998.
  124. Technical Committee for SPIE/IS&T’s 1998 Conference on Visual Communications and Image Processing (VCIP), San Jose, CA, January 28-30, 1998.
  125. Treasurer for 1997 International Conference on Image Processing (ICIP), Santa Barbara, CA, Oct. 26-29, 1997.
  126. Technical Committee for 1997 International Conference on Image Processing (ICIP), Santa Barbara, CA, Oct. 26-29, 1997.
  127. Technical Committee for the First IEEE Signal Processing Society Workshop on Multimedia Signal Processing, Princeton, NJ, June 23-25, 1997.
  128. Technical Committee for SPIE/IS&T’s 1997 Conference on Visual Communications and Image Processing (VCIP), San Jose, CA, Feb. 8-14, 1997
  129. Technical Committee for SPIE Photonics China: Electronic Imaging and Multimedia Systems, Beijing, China, Nov. 4-7, 1996.
  130. Technical Committee for SPIE’s Symposium on Visual Communications and Image Processing (VCIP), Orlando, Florida, March 17-20, 1996
  131. Technical Committee for the 2nd International Conference on Image Processing (ICIP), Washington, DC, Oct. 22-25, 1995.
  132. Technical Committee for SPIE’s Symposium on Visual Communications and Image Processing (VCIP), Taipei, Taiwan, May. 23-26, 1995.
  133. Technical Committee for the 1st International Conference on Image Processing (ICIP), Austin, TX, Nov. 13-16, 1994.

Conference Session Chair

  1. Session Chair for the International Symposium on Circuits and Systems (ISCAS), New Orleans, Louisiana, USA, 27-30 May, 2007.
  2. Session Chair on the Conference on Security and Watermarking of Multimedia Contents III, in IS&T/SPIE’s 13th Annual Symposium on Electronic Imaging: Science and Technology, San Jose, CA, January 20-26, 2001.
  3. Session Chair on the Conference on Security and Watermarking of Multimedia Contents II, in IS&T/SPIE’s 12th Annual Symposium on Electronic Imaging: Science and Technology, San Jose, CA, January 24-26, 2000.
  4. Session Chair on “Robust Image and Video Transmission II” for SPIE’s Symposium on Visual Communications and Image Processing, San Jose, CA, January 25-27, 1999.
  5. Session Chair on “Image and Video Compression III” for SPIE Conference on Applications of Digital Image Processing XXI, San Diego, CA, July 21-24, 1998.
  6. Session Chair on “Image and Video Compression” for the Conference on Multimedia Storage and Archiving Systems III, Boston, MA, Nov. 2-4, 1998.
  7. Session Chair on “Media Servers” for the Conference on Multimedia Storage and Archiving Systems in Symposia at SPIE’s Photonics East, Boston, MA, Nov. 18-22, 1996.
  8. Session Chair on “Object Recognition” for SPIE’s Symposium on Visual Communications and Image Processing, Orlando, Florida, March 17-20, 1996.
  9. Session Chair on “Compression Issues” for the Conference on Digital Image Storage and Archiving Systems in Symposia at SPIE’s Photonics East, Philadelphia, PA, Oct. 23-26, 1995.
  10. Session Chair on “Video Coding” for the 2nd International Conference on Image Processing (ICIP), Washington, DC, Oct. 22-25, 1995.
  11. Session Chair on “Signal Processing” for the International Computer Symposium (ICS), Hsinchu, Taiwan, Dec. 12-15, 1994.
  12. Session Chair on “Shape From Shading” for the 1st International Conference on Image Processing (ICIP), Austin, TX, Nov. 13-16, 1994.
  13. Session Chair on “Signal Processing” for SIAM 1994 Annual Meeting, San Diego, CA, July 25-29, 1994.

Service in the Standard Activities

  1. Host the JPEG-2000 meeting in Los Angeles, CA. Nov. 2-7, 1998.

Referee for the following journals

  1. Applied Numerical Mathematics
  2. Computer Vision, Graphics, and Image Processing
  3. The Proceedings of the IEEE
  4. IEEE Transactions on Acoustics, Speech, and Signal Processing
  5. IEEE Transactions on Circuits and Systems
  6. IEEE Transactions on Circuits and Systems for Video Technology
  7. IEEE Transactions on Computers
  8. IEEE Transactions on Fuzzy Systems
  9. IEEE Transactions on Geoscience and Remote Sensing
  10. IEEE Transactions on Image Processing
  11. IEEE Transactions on Medical Imaging
  12. IEEE Transactions on Multimedia
  13. IEEE Transactions on Signal Processing
  14. IEEE Signal Processing Letters
  15. Inverse Problems
  16. Journal of Parallel and Distributed Computing
  17. Journal of Visual Communication and Image Representation
  18. Journal of VLSI Signal Processing
  19. Linear Algebra and Applications
  20. SIAM Journal on Numerical Analysis
  21. SIAM Journal on Matrix Theory and Applications
  22. SIAM Journal on Scientific and Statistical Computing