About
I’m a postdoc with Frédo Durand at MIT CSAIL. I work mostly on realistic image synthesis, but my interests span most areas in graphics, including hardware architectures, modeling, image processing, and mathematics.
I obtained my doctorate in 2007 from Helsinki University of Technology, where I worked with Timo Aila, Janne Kontkanen and Samuli Laine.
In addition to research, I also consult for the game developer Remedy Entertainment, where I’ve worked since 1996 as a graphics programmer.
Teaching
6.837 Computer Graphics, Fall 09
Current Professional Activities
Program Committee Member for
• Eurographics 2010
• Eurographics Symposium on Rendering 2010
Refereed Publications
Ilya Baran, Jaakko Lehtinen, and Jovan Popović. Sketching Clothoid Splines Using Shortest Paths. Conditionally accepted to Eurographics 2010.
Jaakko Lehtinen, Matthias Zwicker, Emmanuel Turquin, Janne Kontkanen, Frédo Durand, François Sillion, and Timo Aila. A Meshless Hierarchical Representation for Light Transport. ACM Transactions on Graphics 27(3) (Proc. SIGGRAPH 2008), to appear.
Samuli Laine, Hannu Saransaari, Janne Kontkanen, Jaakko Lehtinen, and Timo Aila 2007. Incremental Instant Radiosity for Real-Time Indirect Illumination. In Rendering Techniques 2007 (Proc. Eurographics Symposium on Rendering), pp. 277-286.
[PDF]
Jaakko Lehtinen 2007. A Framework for Precomputed and Captured Light Transport. ACM Transactions on Graphics 26(4), pp. 13:1-13:22.
Jaakko Lehtinen, Samuli Laine, and Timo Aila 2006. An Improved Physically-Based Soft Shadow Volume Algorithm. Computer Graphics Forum 25(3) (Proc. Eurographics 2006).
[PDF]
Samuli Laine, Timo Aila, Ulf Assarsson, Jaakko Lehtinen, and Tomas Akenine-Möller 2005. Soft Shadow Volumes for Ray Tracing. ACM Transactions on Graphics 24(3) (Proc. SIGGRAPH 2005).
See our EG 2006 paper for improvements.
[PDF]
Jan Kautz, Jaakko Lehtinen, and Timo Aila 2004. Hemispherical Rasterization for Self-Shadowing of Dynamic Objects. In Rendering Techniques 2004 (Proc. Eurographics Symposium on Rendering), pp. 179-184.
[PDF]
Jaakko Lehtinen and Jan Kautz 2003. Matrix Radiance Transfer. In proc. ACM SIGGRAPH 2003 Symposium on Interactive 3D Graphics, pp. 59-64.
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Theses
Jaakko Lehtinen 2007. Theory and Algorithms for Efficient Physically-Based Illumination. Doctoral dissertation. Publications in Telecommunications Software and Multimedia TML-A20, Helsinki University of Technology.
Jaakko Lehtinen 2004. Foundations of Precomputed Radiance Transfer. Master's thesis, Helsinki University of Technology, September 2004.
[PDF]
Technical Reports and Book Chapters
Jaakko Lehtinen, Matthias Zwicker, Janne Kontkanen, Emmanuel Turquin, François Sillion, and Timo Aila 2007. Meshless Finite Elements for Hierarchical Global Illumination. Technical Report TML-B7, Publications in Telecommunications Software and Multimedia, Helsinki University of Technology.
[Project page]
Hannu Saransaari, Samuli Laine, Janne Kontkanen, Jaakko Lehtinen and Timo Aila. Incremental Instant Radiosity. In ShaderX 6 — Advanced Rendering Techniques, Wolfgang Engel, ed., pp. 381-392. CEngage Learning, 2008.


