Multiresolution wavelet framework models brightness induction effects
Otazu Porter, Xavier (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació)
Vanrell i Martorell, Maria Isabel (Centre de Visió per Computador)
Parraga, Carlos Alejandro (Universitat Autònoma de Barcelona. Departament de Ciències de la Computació)

Date:	2008
Abstract:	A new multiresolution wavelet model is presented here, which accounts for brightness assimilation and contrast effects in a unified framework, and includes known psychophysical and physiological attributes of the primate visual system (such as spatial frequency channels, oriented receptive fields, contrast sensitivity function, contrast non-linearities, and a unified set of parameters). Like other low-level models, such as the ODOG model [Blakeslee, B. , & McCourt, M. E. (1999). A multiscale spatial filtering account of the white effect, simultaneous brightness contrast and grating induction. Vision Research, 39, 4361-4377], this formulation reproduces visual effects such as simultaneous contrast, the White effect, grating induction, the Todorović effect, Mach bands, the Chevreul effect and the Adelson-Logvinenko tile effects, but it also reproduces other previously unexplained effects such as the dungeon illusion, all using a single set of parameters.
Grants:	Ministerio de Educación y Ciencia TIN2004-02970 Ministerio de Educación y Ciencia TIN2007-64577
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Brightness induction ; Visual system ; Wavelet transform
Published in:	Vision Research, Vol. 48, Issue 5 (February 2008) , p. 733-751, ISSN 1878-5646

DOI: 10.1016/j.visres.2007.12.008

Postprint 40 p, 535.7 KB

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