Planned Sampling of Spatially Varying BRDFs
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Date
2003
Journal Title
Journal ISSN
Volume Title
Publisher
Blackwell Publishers, Inc and the Eurographics Association
Abstract
Measuring reflection properties of a 3D object involves capturing images for numerous viewing and lightingdirections. We present a method to select advantageous measurement directions based on analyzing the estimationof the bi-directional reflectance distribution function (BRDF). The selected directions minimize the uncertaintyin the estimated parameters of the BRDF. As a result, few measurements suffice to produce models that describethe reflectance behavior well. Moreover, the uncertainty measure can be computed fast on modern graphics cardsby exploiting their capability to render into a floating-point frame buffer. This forms the basis of an acquisitionplanner capable of guiding experts and non-experts alike through the BRDF acquisition process. We demonstratethat spatially varying reflection properties can be captured more efficiently for real-world applications using ouracquisition planner.Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-DimensionalGraphics and Realism Virtual Reality I.4.1 [Computer Vision]: Digitization and Image Capture, Reflectance
Description
@article{10.1111:1467-8659.00695,
journal = {Computer Graphics Forum},
title = {{Planned Sampling of Spatially Varying BRDFs}},
author = {Lensch, Hendrik P.A. and Lang, Jochen and Sa, Asla M. and Seidel, Hans-Peter},
year = {2003},
publisher = {Blackwell Publishers, Inc and the Eurographics Association},
ISSN = {1467-8659},
DOI = {10.1111/1467-8659.00695}
}