Dr Henry JOHAN

Dr Henry Johan



Principal Research Fellow
Email: [email protected]
The University of Tokyo, PhD (Computer Science), 2004
The University of Tokyo, MSc (Information Science), 2001
The University of Tokyo, BSc (Information Science), 1999


Henry has more than 20 years of experience in computer graphics. His work spans research and development, project management, teaching, and student supervision. He has worked in the three main areas of graphics: modelling, rendering, and animation. He has published papers in reputable journals (Advanced Engineering Informatics, International Journal of Computer Vision, Computer Vision and Image Understanding) and conferences (ACM Interactive 3D Graphics and Games, IEEE Virtual Reality). In RRIS, he is leading the initiative on Ability Digital Twin. Prior to RRIS, he was with Fraunhofer IDM@NTU which was a German research centre in NTU focusing on interactive digital media. His main role was managing computer graphics related projects. He was an Assistant Professor in the School of Computer Engineering at NTU before joining Fraunhofer. In this role, he has supervised students’ research work, from PhD level to undergraduate level. He has graduated five PhD students. He also has experience in teaching computer graphics related courses. Henry received his BSc, MSc, and PhD degrees from the University of Tokyo. He received scholarships from the Ministry of Education, Culture, Sports, Science and Technology of Japan and the Japan Society for the Promotion of Science.

​​​Research Interest
Modelling, Simulation, Visualisation


​​​Academic & Professional Experience
Program Committee member of the International Conference of Cyberworlds 2018 – present Reviewer for journals and conferences

  • Ability Digital Twin
  • Human-in-the-Loop Robotic Simulation




  • Alex Zhang, Kan Chen, Henry Johan, and Marius Erdt, “High Performance, Adaptive Texture Streaming and Rendering of Large 3D Cities”, in The Visual Computer, Vol.38, pp.1245-1262, April 2022.
  • Kan Chen, Henry Johan, and Marius Erdt, “Appearance-Driven Conversion of Polygon Soup Building Models with Level of Detail Control for 3D Geospatial Applications”, in Advanced Engineering Informatics, Vol.44, April 2020, 101049.
  • Ming Di Koa, Henry Johan, and Alexei Sourin, “Interactive Screenspace Fragment Rendering for Direct Illumination from Area Lights Using Gradient Aware Subdivision and Radial Basis Function Interpolation”, in Computers & Graphics, Vol.64, pp.37-50, May 2017 (online January 2017).
  • Kan Chen and Henry Johan, “Interactive Authoring of Bending and Twisting Motions of Short Plants Using Hand Gestures”, in Computer Animation and Virtual Worlds, Vol.28, No.6, e1747, November/December 2017 (online February 2017).
  • D. Pickup, X. Sun, P.L. Rosin, R.R. Martin, Z. Cheng, Z. Lian, M. Aono, A. Ben Hamza, A. Bronstein, M. Bronstein, S. Bu, U. Castellani, S. Cheng, V. Garro, A. Giachetti, A. Godil, L. Isaia, J. Han, H. Johan, L. Lai, B. Li, C. Li, H. Li, R. Litman, X. Liu, Z. Liu, Y. Lu, L. Sun, G. Tam, A. Tatsuma, J. Ye, “Shape Retrieval of Non-rigid 3D Human Models”, in International Journal of Computer Vision, Vol.120, No.2, pp.169-193, November 2016 (online April 2016).

Book Chapter

  • Hock Soon Seah, Henry Johan, Chee Kwang Quah, Nicholas Mario Wardhana, Tze Yuen Lim, and Darren Wee Sze Ong, “GF Engine”, in Simulations, Serious Games and Their Applications, Chapter 10, pp.147-165, Springer, 2014.


  • Xingzi Zhang, Kan Chen, Henry Johan, and Marius Erdt, “A Semantics-Aware Method for Adding 3D Window Details to Textured LoD2 CityGML Models”, in the Proceedings of Cyberworlds 2022, pp.63-70, Kanazawa (Japan), September 2022. (Best Full Paper Award)
  • Yisi Liu, Fitri Trapsilawati, Zirui Lan, Olga Sourina, Henry Johan, Fan Li, Chun-Hsien Chen, Wolfgang Mueller-Wittig, “Human Factors Evaluation of ATC Operational Procedures in Relation to Use of 3D Display”, in the Proceedings of the International Conference on Applied Human Factors and Ergonomics, pp.715-725, Washington D.C. (USA), July 2019.
  • Ming Di Koa, Henry Johan, and Alexei Sourin, “Voxel-Based Interactive Rendering of Translucent Materials Under Area Lights Using Sparse Samples”, in the Proceedings of Cyberworlds 2017, pp.56-63, Chester (United Kingdom), September 2017. (Best Full Paper Award)
  • Kan Chen and Henry Johan, “Animating 3D Vegetation in Real-time Using a 2D Approach”, in the Proceedings of ACM Symposium on Interactive 3D Graphics and Games (I3D) 2015, pp.69-76, San Francisco (USA), February 2015.
  • Bo Li, Henry Johan, Yijuan Lu, and Ricky Ye, “Efficient View-Based 3D Reflection Symmetry Detection”, in 2014 SIGGRAPH Asia Workshop on Creative Shape Modeling and Design, 2:1-2:8, Shenzhen (China), December 2014.