Document Detail


Measuring isotropic subsurface light transport.
MedLine Citation:
PMID:  24787793     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Subsurface light transport can affect the visual appearance of materials significantly. Measuring and modeling this phenomenon is crucial for accurately reproducing colors in printing or for rendering translucent objects on displays. In this paper, we propose an apparatus to measure subsurface light transport employing a reference material to cancel out adverse signals that may bias the results. In contrast to other approaches, the setup enables improved focusing on rough surfaces (e.g. uncoated paper). We derive a measurement equation that may be used to deduce the point spread function (PSF) of subsurface light transport. Main contributions are the usage of spectrally-narrowband exchangeable LEDs allowing spectrally-resolved measurements and an approach based on quadratic programming for reconstructing PSFs in the case of isotropic light transport.
Authors:
Kathrin Happel; Edgar Dörsam; Philipp Urban
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Optics express     Volume:  22     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  -    
Other Details:
Languages:  ENG     Pagination:  9048-9062     Citation Subset:  -    
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