Compact Representation of Reflectance Fields using Clustered Sparse Residual Factorization (bibtex)
by Hideshi Yamada, Pieter Peers, Paul Debevec
Abstract:
We present a novel compression method for fixed viewpoint re- flectance fields, captured for example by a Light Stage. Our com- pressed representation consists of a global approximation that ex- ploits the similarities between the reflectance functions of different pixels, and a local approximation that encodes the per-pixel resid- ual with the global approximation. Key to our method is a clustered sparse residual factorization. This sparse residual factorization en- sures that the per-pixel residual matrix is as sparse as possible, en- abling a compact local approximation. Finally, we demonstrate that the presented compact representation is well suited for high-quality real-time rendering.
Reference:
Compact Representation of Reflectance Fields using Clustered Sparse Residual Factorization (Hideshi Yamada, Pieter Peers, Paul Debevec), 2009.
Bibtex Entry:
@techreport{yamada_compact_2009,
	type = {{ICT} {Technical} {Report}},
	title = {Compact {Representation} of {Reflectance} {Fields} using {Clustered} {Sparse} {Residual} {Factorization}},
	url = {http://ict.usc.edu/pubs/ICT-TR-02-2009.pdf},
	abstract = {We present a novel compression method for fixed viewpoint re- flectance fields, captured for example by a Light Stage. Our com- pressed representation consists of a global approximation that ex- ploits the similarities between the reflectance functions of different pixels, and a local approximation that encodes the per-pixel resid- ual with the global approximation. Key to our method is a clustered sparse residual factorization. This sparse residual factorization en- sures that the per-pixel residual matrix is as sparse as possible, en- abling a compact local approximation. Finally, we demonstrate that the presented compact representation is well suited for high-quality real-time rendering.},
	number = {ICT TR 02 2009},
	institution = {University of Southern California Institute for Creative Technologies},
	author = {Yamada, Hideshi and Peers, Pieter and Debevec, Paul},
	year = {2009},
	keywords = {Graphics}
}
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