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Colorimetric and Multispectral Image Acquisition Using Model-based and Empirical Device Characterization
Linköping University, Department of Science and Technology, Digital Media. Linköping University, The Institute of Technology.
2007 (English)In: Image Analysis: 15th Scandinavian Conference, SCIA 2007, Aalborg, Denmark, June 10-14, 2007 / [ed] Bjarne Kjær Ersbøll, Kim Steenstrup Pedersen, Springer Berlin/Heidelberg, 2007, 798-807 p.Conference paper, Published paper (Refereed)
Abstract [en]

The focus of the study is high quality image acquisition in colorimetric and multispectral formats. The aim is to combine the spatial resolution of digital images with the spectral resolution of color measurement instruments, to allow for accurate colorimetric and spectral measurements in each pixel of the acquired images. An experimental image acquisition system is used, which besides trichromatic RGB filters also provides the possibility of acquiring multi-channel images, using a set of narrowband filters. To derive mappings to colorimetric and multispectral representations, two conceptually different approaches are used. In the model-based characterization, the physical model describing the image acquisition process is inverted, to reconstruct spectral reflectance from the recorded device response. In the empirical characterization, the characteristics of the individual components are ignored, and the functions are derived by relating the device response for a set of test colors to the corresponding colorimetric and spectral measurements, using linear and polynomial least squares regression. The results indicate that for trichromatic imaging, accurate colorimetric mappings can be derived by the empirical approach, using polynomial regression to CIEXYZ and CIELAB. However, accurate spectral reconstructions requires for multi-channel imaging, with the best results obtained using the model-based approach.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2007. 798-807 p.
Series
Lecture Notes in Computer Science, ISSN 0302-9743 (print), 1611-3349 (online) ; 4522
Keyword [en]
Multispectral imaging, Device characterization, Spectral recons-truction, Metamerism
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-40814DOI: 10.1007/978-3-540-73040-8_81ISI: 000247364000081Local ID: 54216ISBN: 978-3-540-73039-2 (print)ISBN: 978-3-540-73040-8 (print)OAI: oai:DiVA.org:liu-40814DiVA: diva2:261663
Conference
15th Scandinavian Conference, SCIA 2007, Aalborg, Denmark, June 10-14, 2007
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-04-22Bibliographically approved

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Nyström, Daniel

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf