dc.contributor.author | Wang, Xingbo | |
dc.contributor.author | Thomas, Jean-Baptiste | |
dc.contributor.author | Hardeberg, Jon Yngve | |
dc.contributor.author | Gouton, Pierre | |
dc.date.accessioned | 2014-07-22T10:49:30Z | |
dc.date.available | 2014-07-22T10:49:30Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Wang, X., Thomas, J.-B., Hardeberg, J. Y. &Gouton, P. (2014) Multispectral imaging: narrow or wide band filters? In: Journal of the International Colour Association, 12 p. 44-51. | nb_NO |
dc.identifier.issn | 2227-1309 | |
dc.identifier.uri | http://hdl.handle.net/11250/197985 | |
dc.description | This is an Open Access article. This is the publisher’s PDF originally published in Journal of the International Colour Association: http://aic-colour-journal.org/index.php/JAIC/article/view/149 | nb_NO |
dc.description.abstract | In every aspect, spectral characteristics of filters play an important role in an image acquisition
system. For a colorimetric system, traditionally, it is believed that narrow-band filters give rise to
higher accuracy of colour reproduction, whereas wide-band filters, such as complementary colour
filters, have the advantage of higher sensitivity. In the context of multispectral image capture, the
objective is very often to retrieve an estimation of the spectral reflectance of the captured objects. The
literature does not provide a satisfactory answer to which configuration yields the best results. It is
therefore of interest to verify which type of filters performs the best in estimating the reflectance
spectra for the purpose of multispectral image acquisition. A series of experiments were conducted on
a simulated imaging system, with six types of filters of varying bandwidths paired with three linear
reflectance estimation methods. The results show that filter bandwidth exerts direct influence on the
accuracy of reflectance estimation. Extremely narrowband filters did not perform well in the
experiment and the relation between bandwidth and reflectance estimation accuracy is not monotonic.
Also it is indicated that the optimal number of filters depends on the spectral similarity metrics
employed. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | International Colour Association | nb_NO |
dc.subject | VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420::Simulering, visualisering, signalbehandling, bildeanalyse: 429 | nb_NO |
dc.title | Multispectral imaging: narrow or wide band filters? | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.source.pagenumber | 44-51 | nb_NO |
dc.source.volume | 12 | nb_NO |
dc.source.journal | Journal of the International Colour Association | nb_NO |