Srinivasa G. Narasimhan Mohit Gupta Craig Donner Ravi Ramamoorthi Shree K. Nayar Henrik Wann Jensen Acquiring scattering properties of participating media by dilution. 1003-1012 2006 25 ACM Trans. Graph. 3 http://doi.acm.org/10.1145/1141911.1141986 db/journals/tog/tog25.html#NarasimhanGDRNJ06