Invited Papers and Lectures

Invited Journal Papers

  1. Hitoshi Kiya, “Compressible and Learnable Encryption for Untrusted Cloud Environments,” APSIPA 10th Anniversary Magazine, DOI: 978-988-14768-5©, 2018
  2. Hitoshi KIYA and Toshiyuki DOBASHI, “An Efficient Unified-Tone-Mapping Operation for HDR Images with Various Formats,” ITE Transactions on Media Technology and Applications, vol.4, no.1, pp.2-9, January 2016.
  3. Hitoshi KIYA and Masaaki FUJIYOSHI, “Signal and Image Processing in the Encrypted Domain,” ECTI Transactions on Computer Engineering, Computer and Information Technology, vol.6, no.1, pp.11-18, May 2012.
  4. Hitoshi KIYA, “Methods for Embedding Binary Data into JPEG and MPEG Images in Compressed Domain,” IEICE Trans., vol.J83-A, no.12, pp.1349-1356, December 2000.
  5. Kiyoshi NISHIKAWA and Hitoshi KIYA, “Pipeline Implementation of Gradient-Type Adaptive Filters,” IEICE Trans., vol.J82-A, no.6, pp.769-778, June 1999.

Invited Speeches in Conferences, Institutions and Companies

  1. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Image Encryption for Privacy-Preserving Image Compression and Machine Learning,” keynote speech at International Conference on Knowledge and Smart Technology (KST 2020), Pattaya Thailand, August 2020.
  2. Hitoshi Kiya, “Privacy-Preserving Image Compression and Machine Learning for Semi-trusted Cloud Environments, – ,Progress and Challenges in Compressible and Learnable Image Encryption,” invited speech at Wuchang University of Technology, China, December 2019.
  3. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Encryption for Semi-Trusted Cloud Environments -Human Visibility and Machine Visibility,” Keynote Speech at Workshop on Intelligent Multimedia Processing, Taiwan, September 2019
  4. Hitoshi Kiya, “Privacy-Preserving Image Compression and Machine Learning for Untrusted Cloud Environments, – ,”Progress and Challenges in Compressible and Learnable Image Encryption keynote speech at International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology 2019 (ECTI-CON 2019), Pattaya Thailand, July 2019.
  5. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Image Encryption for Semi-Trusted Cloud Environments”, Invited speech at National Institute of Informatics (NII), Tokyo Japan, August 2019.
  6. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Encryption for Untrusted Cloud Environments,” invited speech at the Hong Kong Polytechnic University (Hong Kong PolyU), Hong Kong, March 2019.
  7. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Image Encryption for Untrusted Cloud Environments,” Invited speech at Nanyang Technological University (NTU), Singapore, January 2019.
  8. Hitoshi Kiya, “Privacy-Preserving Image Compression and Learning for Untrusted Cloud Environments –Progress and Challenges in Compressible and Learnable Encryption,” keynote speech at Annual international conference organized by Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI) Association (ECTI-CON), Pattaya, Thailand, July 2019.
  9. Hitoshi Kiya, “Progress and Challenges in Compressible and Learnable Encryption for Untrusted Cloud Environments,” invited speech at the National Taiwan University of Science and Technology (Taiwan Tech), Taipei, Taiwan, December 2018.
  10. Hitoshi Kiya, “Compressible and Learnable Encryption for Untrusted Cloud Environments,” invited speech at APSIPA ASC 2018, Hawaii, USA, November 2018.
  11. Hitoshi Kiya, “Privacy-Preserving Image Compression and Learning for Untrusted Cloud Environments –Toward Compressible and Learnable Encryption,” keynote speech at International Computer symposium (ICS), Yulin Taiwan, December 2018
  12. Hitoshi Kiya, “Signal Processing-Friendly Encryption for Social Networking and Multimedia Cloud Computing,” Keynote Speech at 2017 International Conference on Electrical Engineering and Informatics (ICELTICs 2017), Banda Aceh, Indonesia, 10 Oct., 2017
  13. Hitoshi Kiya, “Looking Back Research and Education of Signal Processing -Multi-Rate Signal Processing to Perceptual Encryption,” Keynote Speech at 31st IEICE Signal Processing Symposium, Japan, November 2016.
  14. Hitoshi Kiya, “Gifts from Nagaoka -Memories and Gigaku-,” Keynote Speech at IGCN 2016, Japan, October 2016.
  15. Hitoshi Kiya, “The Future of Gigaku Education,” Invited Speech at IGCN 2016, Japan, October 2016.
  16. Hitoshi Kiya, “Signal Processing Friendly Encryption: Toward Secure and Flexible Multimedia Processing”, Invited Speech at Seoul National University, Korea, October 2015
  17. Hitoshi Kiya, “Information Security for Multimedia Signal Processing”, Invited Speech at Syiah Kuala University, Indonesia, September 2015
  18. Hitoshi Kiya, “General Overview of the Past DSPS Educator Conferences and after This”, Invited Speech in the DSP Educator Conference, Tokyo, Japan, August, 2013
  19. Hitoshi Kiya, “Activites of IEICE and IEEE”, Invited Speech in the International Electrical Engineering Congress (iEECON), Chaingmai, Thailand, March 2013
  20. Hitoshi Kiya, “Signal and Image Processing in the Encrypted Domain”, Keynote Speech in the IEEE International Symposium on Intelligent Signal Processing and Communication Systems(ISPACS), Chaingmai, Thailand, December 2011
  21. Hitoshi Kiya, “Phase Representation of Discrete Signals with Finite Length and Its Properties”, Keynote Speech in the ITE Workshop on Media Engineering, Kumamoto Japan, Dec. 2011
  22. Hitoshi Kiya and Kiyoshi Nishikawa,”Selected Topics from Recent Researches in Signal and Image Processing at Tokyo Metropolitan University”, Invited Speech in the APSIPA Annual Summit and Conference, Biopolis, Singapore, December 2010
  23. Hitoshi Kiya, Periodic Symmetric Extension of a Signal and Its Applications” Keynote Speech in the IEICE Workshop on Signal Processing, Okinawa Japan, March, 2010
  24. Hitoshi Kiya, Selected Reseach Topics in Signal and Image Processing at Kiya Lab., NTT Innovation Network Laboratories Japan, Oct. 2008
  25. Hitoshi Kiya, “Looking Back at the Last Ten years of the DSPS Educator Conference”, Invited Speech in the DSP Educator Conference, Tokyo, Japan, September, 2008
  26. Hitoshi Kiya, Integration of Signal processing and Media Engineering, Toyama University Japan, June 2008
  27. Hitoshi Kiya, DCT signs and Their Properties, Nagoya University Japan, June 2007
  28. Hitoshi Kiya,Integration of Image Signal Processing and Pattern Recognition-DCT Sign Correlation and Its Applications”, Keynote Speech in the JPSE Workshop on Dynamic Image Processing for Real Application, Sapporo Japan, March, 2007
  29. Hitoshi Kiya, Recent Topics in Digital Filter Design Methods, NEC Japan, June 2006
  30. Hitoshi Kiya, JPEG2000 and Its Advantages, Utsunomiya University Japan, May 2002
  31. Hitoshi Kiya, “Some Advantages of JPEG2000 Coding and Its Extension,” Invited Speech in the IEICE Workshop on Digital Signal Processing, Kyoto Japan, May 2002
  32. Hitoshi Kiya, “Recent Topics in Signal and Image Processing “, Invited Speech in the DSP Educator Conference, Tokyo, Japan, December, 1998
  33. Hitoshi Kiya, “Recent Topics in Signal and Image Processing”, the University of Sydney, NSW Australia, January 1996
  34. Hitoshi Kiya,” Multirate Signal Processing”, Sepuluh Nopember Institute of Technology, Indonesia, January 1990