Information

Abstract

This technical report presents a heuristic perceptually-based termination criterion for a stochastic radiosity algorithms. The proposed criterion makes it possible to terminate the iterative radiosity simulation as soon as any further changes of the radiosity solution are predicted not to be noticed by the human observer. We use tone mapping operators and perceptually uniform CIE L*u*v* colour space to arrive at the difference of displayed values. In order to decide when to stop the iterations of the radiosity method, we evaluate the least squares fit of a power function to the error distribution data.

Additional Files and Images

Additional files:
paper
paper




BibTeX

Download BibTeX-Entry
@techreport{Prikryl-1999-PDTX,
  title =      "Perceptually-Driven Termination for Stochastic
                  Radiosity",
  author =     "Jan Prikryl and Werner Purgathofer",
  year =       "1999",
  abstract =   "This technical report presents a heuristic
               perceptually-based termination criterion for a stochastic
               radiosity algorithms. The proposed criterion makes it
               possible to terminate the iterative radiosity simulation as
               soon as any further changes of the radiosity solution are
               predicted not to be noticed by the human observer. We use
               tone mapping operators and perceptually uniform CIE L*u*v*
               colour space to arrive at the difference of displayed
               values. In order to decide when to stop the iterations of
               the radiosity method, we evaluate the least squares fit     
                            of a power function to the error distribution
               data.",
  address =    "Favoritenstrasse 9-11/186, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  month =      jan,
  number =     "TR-186-2-99-01",
  keywords =   "termination prediction, radiosity, human perception",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/1999/Prikryl-1999-PDTX/",
}