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A Generalized Approach to Radiometric

  • We propose a novel method that applies the light transport matrix for performing an image-based radiometric compensation which accounts for all possible types of light modulation. For practical application the matrix is decomposed into clusters of mutually influencing projector and camera pixels. The compensation is modeled as a linear system that can be solved with respect to the projector patterns. Precomputing the inverse light transport in combination with an efficient implementation on the GPU makes interactive compensation rates possible. Our generalized method unifies existing approaches that address individual problems. Based on examples, we show that it is possible to project corrected images onto complex surfaces such as an inter-reflecting statuette, glossy wallpaper, or through highly-refractive glass. Furthermore, we illustrate that a side-effect of our approach is an increase in the overall sharpness of defocused projections.

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Document Type:Preprint
Author: Gordon Wetzstein, Prof. Dr. Oliver BimberORCiDGND
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.762Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20111215-7625Cite-Link
Date of Publication (online):2006/07/24
Year of first Publication:2006
Release Date:2006/07/24
Contributing Corporation:ACM
Institutes:Fakult├Ąt Medien / Juniorprofessur Augmented Reality
GND Keyword:Association for Computing Machinery / Special Interest Group on Graphics; CGI <Computergraphik>; Maschinelles Sehen
Dewey Decimal Classification:000 Informatik, Informationswissenschaft, allgemeine Werke / 000 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
BKL-Classification:54 Informatik / 54.73 Computergraphik
Licence (German):License Logo In Copyright