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2013 Cover Image: Prism
Author(s) -
Spencer Ben,
Jones Mark W.
Publication year - 2013
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.12017
Subject(s) - prism , enamel paint , decussation , cover (algebra) , art history , art , computer graphics (images) , computer science , visual arts , anatomy , biology , physics , optics , mechanical engineering , engineering
Description: This image depicts a glass prism backlit by a strong point emitter. A false colour scheme has been applied to the refracted caustic based on a parameterisation of the primal trajectory of each photon. When encoded by the photon map, this information can be used to dissociate subtle, interlaced or high-frequency structure in caustic illumination. Combined with photon relaxation, noise is effectively removed while minimising bias and loss of detail due to diffusion. The full algorithm is described in our paper, Photon Parameterisation for Robust Relaxation Constraints, to be presented at Eurographics 2013.