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hal.structure.identifierEnvironmental Optics Laboratory [Budapest]
dc.contributor.authorHORVÁTH, Gábor
hal.structure.identifierMax-Planck-Institut für Informatik [MPII]
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
hal.structure.identifierMelting the frontiers between Light, Shape and Matter [MANAO]
dc.contributor.authorHEGEDÜS, Ramón
dc.contributor.editorGábor Horváth
dc.date.accessioned2023-05-12T11:01:48Z
dc.date.available2023-05-12T11:01:48Z
dc.date.issued2014-08-03
dc.identifier.isbnISBN Print 978-3-642-54717-1 - ISBN Online 978-3-642-54718-8
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/182054
dc.description.abstractEnIf the photoreceptors of a colour vision system are polarization sensitive, the system detects polarization-induced false colours. It has been hypothesized that egg-laying Papilio butterflies could use these polarizational colours as a cue to detect leaf orientation and to discriminate between shiny and matte leaves. In this chapter, we show that a shiny green surface with any orientation can possess almost any polarizational false colour under any illumination condition (for different solar elevations and directions of view with respect to the solar azimuth as well as for sunlit and shady circumstances under clear skies). Consequently, polarizational colours cannot unambiguously code surface orientation. Polarization sensitivity is even disadvantageous for the detection of surface orientation by means of colours. On the other hand, the colour changes due to retinal rotation can be significantly larger for shiny surfaces than for matte ones. Thus, polarizational colours could help polarization-dependent colour vision systems to discriminate between shiny and matte surfaces. Earlier it has been believed that a uniformly polarization-sensitive retina (UPSR)—in which receptors of all spectral types have the same polarization sensitivity ratio and microvilli direction—cannot detect polarization-induced false colours. Here we show that, contrary to this belief, a colour vision based on a UPSR is subject to polarization-related artefacts, because both the degree and the angle of polarization of light reflected from natural surfaces depend on wavelength. These findings are of general importance for polarization-dependent colour vision systems.
dc.language.isoen
dc.publisherSpringer Berlin Heidelberg
dc.source.titlePolarized Light and Polarization Vision in Animal Sciences
dc.subject.enAnimal Physiology
dc.subject.enBiophysics and Biological Physics
dc.subject.enAtmospheric Sciences
dc.subject.enBehavioural Sciences
dc.subject.enNeurobiology
dc.title.enPolarization-Induced False Colours
dc.typeChapitre d'ouvrage
dc.identifier.doi10.1007/978-3-642-54718-8_13
dc.subject.halSciences du Vivant [q-bio]/Biologie animale
dc.subject.halSciences de l'ingénieur [physics]/Optique / photonique
bordeaux.page293-302
bordeaux.volume2
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
hal.identifierhal-01091829
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01091829v1
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