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    • MAM2015: Eurographics Workshop on Material Appearance Modeling: Issues and Acquisition
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    Geometric Accuracy Analysis of Stationary BTF Gonioreflectometers

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    Date
    2015
    Author
    Havran, V.
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    Abstract
    The accurate BTF data representation requires specialized measurement gantries, some of them designed as gonireflectometers. These consist of an illumination source and a camera mounted on two robotic arms, one degree of freedom possibly achieved by rotation stage which a measured sample is mounted on. While there are several variations of the gonioreflectometer gantry, the principle of all remains the same, positioning directly the illumination and detector on a hemispherical surface over a sample. We analyze the positioning error of such gonioreflectometers. The input parameters are the required spatial resolution of a BTF sample and the distance between the camera used as a detector and the BTF sample. Our analysis confirms that the requirements for mechatronic actuators for the positioning of the sample and arms are very high and near the limit of state of the art technology.
    BibTeX
    @inproceedings {mam.20151200,
    booktitle = {Workshop on Material Appearance Modeling},
    editor = {Reinhard Klein and Holly Rushmeier},
    title = {{Geometric Accuracy Analysis of Stationary BTF Gonioreflectometers}},
    author = {Havran, V.},
    year = {2015},
    publisher = {The Eurographics Association},
    ISSN = {2309-5059},
    ISBN = {978-3-905674-83-5},
    DOI = {10.2312/mam.20151200}
    }
    URI
    http://dx.doi.org/10.2312/mam.20151200
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    Eurographics Association copyright © 2013 - 2020 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA