The rendering compitition 2007
http://graphics.ucsd.edu/courses/rendering/2007/thachisuka/
I found this page yeasterday. He might be the author of Parthenon renderer, and made a great job on the compitition.
In the last part of the page, there are some test images without any comments. They are rather noisy. So I wonder what he was trying to do for them.
Anyway, I wish I could go abroad to study like him...