This work has been done in collaboration with Miguel Sainz and Simon Green from NVIDIA, as well as Fabrice Neyret from CNRS and Elmar Eisemann from ParisTech.
The paper ha been published at Pacific Graphic. You can find the authors version of it on my research page:
[Update 30/06/2011]: Benoit Rogez wrote a very good article about our approach on 3DVF (in French) : here
[Update 10/06/2012]: More details on the algorithm and the fast voxelization and octree construction can be found in my GTC 2012 presentation.
Indirect lighting (global illumination):
High quality video: http://artis.imag.fr/Membres/Cyril.Crassin/GIVoxels/Siggraph11_GI1.mov
High quality video: http://artis.imag.fr/Membres/Cyril.Crassin/GIVoxels/Siggraph11_AO1.mov