Associate Professor at the Graduate Institute of Animation and Film Art, Tainan National University of the Arts, Taiwan. He is a Visiting Professor at Tainan University of Technology. He is also a visiting scholar at the Department of Media Engineering, The Graduate School of Engineering, Tokyo Polytechnic University of Japan (from April 2010 to present). He was an Assistant professor in the Tainan National University of the Arts(from August 2010 to July 2013). He was a Postdoctoral Researcher in the Center for Hyper Media Research, Tokyo Polytechnic University, Japan (from October 2008 to March 2010). He also worked at the Japan Advanced Institute of Science and Technology, Japan, as a Teaching /Research Assistant (from April 2005 to March 2008). He received his Ph.D. from Japan Advanced Institute of Science and Technology in 2008. His research interests include computer animations, motion capture techniques, computer graphics, 3D Printing, virtual reality, haptic interfaces, interactive media and kansei engineering. Prof. Rajapakse is the author or coauthor of over sixty academic publications. He is Member of Motion Capture Society (MCS) , The Society for Art and Science, IEEE and DCSIG.

[1]Yusuke Kawakami, Tetsuo Hattori, Yoshiro Imai, Kazuaki Ando, Yo Horikawa, R. P. C. Janaka Rajapakse: "Histogram Matching Based on Gaussian Distribution Using Variance Estimation -- Comparison between Curvature Computation and Regression Analysis", Proceedings of ICAROB2017 (International Conference on Artificial Life and Robotics 2017), ISBN 978-4-9908350-2-6, pp.579-582,Miyazaki, Japan, 2017.

[2] Yoshimasa Tokuyama, R. P. C. Janaka Rajapakse, Shougo Miya and Kouichi Konno, “Development of a Whack-a-Mole Game with Haptic Feedback for Rehabilitation”, Proceedings of Nicograph International Conference (NicoInt-2015), Electronic ISBN 978-1-5090-2305-9,  Print on Demand ISBN 978-1-5090-2306-6, July 6^th -8^th , 2016,  pp. 29-35, Hanzhou, China.

[3] Yusuke Kawakami, Tetsuo Hattori, Yoshiro Imai, Yo Horikawa, Kazuaki Ando, R. P. C. Janaka Rajapakse: "Automated Processing of Multiple-Brightness Peak Histogram Image Using Curvature and Variance Estimation", Journal of Robotics, Networking and Artificial Life, ISSN 2352-6386, Vol.3, No.1, pp.55-60, June 2016.

[4] Manjula Madhuwanthi, Ashu Marasinghe, R. P. C. Janaka Rajapakse, Asanka Dharmawansa and Shusaku Nomura , “Factor Influence to Travel Behavior on Transport Mode Choice- A Case of Colombo Metropolitan Area in Sri Lanka ”, International Journal of Affective Engineering, Vol. 15, No. 2 ( December 2015), pp.63-72, ISSN:2187-5413

[5] Prabath Weerasinghe, R. P. C. Janaka Rajapakse, and Ashu Marasinghe, “An Empirical Analysis on Emotional Body Gesture for Affective Virtual Communication”, International Journal of Computer Science Issues, Vol. 12, Issue. 1, No. 1(January 2015), pp.101-107, ISSN: 1694-0784(Online), ISSN: 1694-0814(Print).

General Chair and Publication Chair, ASIAGRAPH-2017, 22nd to 24th April 2017, Kaohsiung, Taiwan, https://sites.google.com/view/asiagraph-2017/committee. 

International Program Committee

Annual international conference “NICOGRAPH International 2017” June 2nd-3rd, in Kyoto, Japan, http://art-science.org/nicograph/nicoint2017/. 

Member of International Review committee
ASIAGRAPH-2016, 27th to 30^th October, 2016,Tokyo, http://www.asiagraph.jp/judge.html  

International Program Committee
Annual international conference “NICOGRAPH International 2016” July 6-8, in Hangzhou, China, http://www.vc.media.yamanashi.ac.jp/nicoint2016/Organization.html  

Member of International Review committee
ASIAGRAPH-2015, 27th to 30^th October, 2015,Tokyo, http://www.asiagraph.jp/judge.html

General Chair and Publication Chair, ASIAGRAPH-2015, 25^th to 27^th April, Tainan, Taiwan.

Member of International Review committee, ASIAGRAPH-2014, 23^rd to 26^th October, Tokyo, http://www.asiagraph.jp/judge.html

Program Committee, The 12^th annual international conference “NICOGRAPH International 2013” will be held in Fukuoka, Japan, The Society for Art and Science, http://art-science.org/nicograph/nicoint2013/committee.html

Reviewer, IEEE-ICBAKE 2013, International Conference on Biometrics and Kansei Engineering-2013 will be held on Akihabara, japan, http://www.sd.tmu.ac.jp/ICBAKE2013/

Reviewer, Journal of Art and Science, The Society for Art and Science (http://art-science.org), Japan.

International Program Committee, The 11^th annual international conference “NICOGRAPH International 2012” in Bali, Indonesia, The Society for Art and Science (http://art-science.org) in cooperation with University of Multimedia Nusantara, Indonesia.

Reviewer, IEEE-ICBAKE 2011, International Conference on Biometrics and Kansei Engineering-2011, http://vivi.eng.kagawa-u.ac.jp/~icbake2011/index.htm

Session Chair, ICROS-SICE International Joint Conference 2009 (ICCAS-SICE 2009), Session title: Force Control and Haptic Devices, http://www.sice.or.jp/ICCAS-SICE2009/session_paperID_c.pdf

Reviewer, ACM SIGCHI Creativity & Cognition 2009, http://www.creativityandcognition09.org/programcommittee.htm, http://portalparts.acm.org/1650000/1640233/fm/frontmatter.pdf

Reviewer, ICROS-SICE International Joint Conference 2009 (ICCAS-SICE 2009), http://www.sice.or.jp/ICCAS-SICE2009/

Program Committee, The 12^th International Conference on Humans and Computers 2009 (HC'2009) http://ktm11.eng.shizuoka.ac.jp/HC2009/committee.html

Publicity Committee, International Multi-Conference on Biometrics and Kansei Engineering (IEEE-ICBAKE 2009) http://icbake.us.edu.pl/?menu=1&docid=3