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Author  |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
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| Title |
Visual behaviours for binocular navigation with autonomous systems. |
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1999 |
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Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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OR;ISE;CIC;MV |
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BCNPCL @ bcnpcl @ RVV1999a |
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13 |
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| Author |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
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| Title |
Gaze control in a binocular robot systems |
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1999 |
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Barcelona |
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OR;ISE;CIC;MV |
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BCNPCL @ bcnpcl @ RVV1999b |
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41 |
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| Author |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
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| Title |
Visual behaviours for binocular navigation with autonomous systems. |
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2000 |
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Pattern Recognition and Applications, IOS Press, 134–143. |
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OR;ISE;CIC;MV |
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BCNPCL @ bcnpcl @ RVV2000 |
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245 |
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| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
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| Title |
Mutiresolution Wavelet Framework Reproduces Induction Effects |
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2007 |
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Perception 36:167–167, supp |
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CAT @ cat @ OVP2007 |
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842 |
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| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
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| Title |
Multiresolution Wavelet Framework Models Brightness Induction Effects |
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Journal |
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2008 |
Publication |
Vision Research |
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VR |
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48 |
Issue |
5 |
Pages |
733–751 |
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CAT @ cat @ OVP2008a |
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927 |
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| Author |
Xavier Otazu; Maria Vanrell; C. Alejandro Parraga |
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Colour induction effects are modelled by a low-level multiresolution wavelet framework |
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2008 |
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Perception 37(Suppl.): 107 |
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CAT @ cat @ OVP2008b |
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1055 |
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| Author |
Xavier Otazu; Maria Vanrell |
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| Title |
Building Perceived Colour Images. |
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Miscellaneous |
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2004 |
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CGIV 2004 Second European Conference on Colour in Graphics, Imaging, and Vision, 140:145 |
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Aachen (Germany) |
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CAT @ cat @ OtV2004 |
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450 |
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| Author |
Xavier Otazu; Maria Vanrell |
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| Title |
Perceptual representation of textured images |
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2005 |
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Journal of Imaging Science and Technology, 49(3):262–271 (IF: 0.522) |
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CAT @ cat @ OtV2005b |
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542 |
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| Author |
Xavier Otazu; Maria Vanrell |
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A surround-induction function to unify assimilation and contrast in a computational model of color apearance |
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2005 |
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Perception supplement, ECVP05 Abstracts, 34: 215 |
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CAT @ cat @ OtV2005a |
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568 |
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Xavier Otazu; Maria Vanrell |
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Several lightness induction effects with a computational multiresolution wavelet framework |
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2006 |
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29th European Conference on Visual Perception (ECVP’06), Perception Suppl s, 32: 56–56 |
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Saint-Petersburg (Russia) |
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CAT @ cat @ OtV2006 |
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659 |
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Xavier Otazu; C. Alejandro Parraga; Maria Vanrell |
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| Title |
Towards a unified chromatic inducction model |
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2010 |
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Journal of Vision |
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VSS |
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10 |
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12:5 |
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1-24 |
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| Keywords |
Visual system; Color induction; Wavelet transform |
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In a previous work (X. Otazu, M. Vanrell, & C. A. Párraga, 2008b), we showed how several brightness induction effects can be predicted using a simple multiresolution wavelet model (BIWaM). Here we present a new model for chromatic induction processes (termed Chromatic Induction Wavelet Model or CIWaM), which is also implemented on a multiresolution framework and based on similar assumptions related to the spatial frequency and the contrast surround energy of the stimulus. The CIWaM can be interpreted as a very simple extension of the BIWaM to the chromatic channels, which in our case are defined in the MacLeod-Boynton (lsY) color space. This new model allows us to unify both chromatic assimilation and chromatic contrast effects in a single mathematical formulation. The predictions of the CIWaM were tested by means of several color and brightness induction experiments, which showed an acceptable agreement between model predictions and psychophysical data. |
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CAT @ cat @ OPV2010 |
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1450 |
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X. Binefa; Jordi Vitria; Maria Vanrell |
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| Title |
Reconstruccion tridimensional de imagenes Microscopicas. |
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1992 |
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V Simposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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OR;CIC;MV |
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BCNPCL @ bcnpcl @ BVV1992b |
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255 |
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| Author |
Susana Alvarez; Xavier Otazu; Maria Vanrell |
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| Title |
Image Segmentation Based on Inter-Feature Distance Maps |
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2005 |
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Frontiers in Artificial Intelligence and Applications, IOS Press, 131: 75–82 |
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CAT @ cat @ AOV2005 |
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569 |
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Susana Alvarez; Maria Vanrell |
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| Title |
Texton theory revisited: a bag-of-words approach to combine textons |
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2012 |
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Pattern Recognition |
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PR |
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45 |
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12 |
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4312-4325 |
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The aim of this paper is to revisit an old theory of texture perception and
update its computational implementation by extending it to colour. With this in mind we try to capture the optimality of perceptual systems. This is achieved in the proposed approach by sharing well-known early stages of the visual processes and extracting low-dimensional features that perfectly encode adequate properties for a large variety of textures without needing further learning stages. We propose several descriptors in a bag-of-words framework that are derived from different quantisation models on to the feature spaces. Our perceptual features are directly given by the shape and colour attributes of image blobs, which are the textons. In this way we avoid learning visual words and directly build the vocabularies on these lowdimensionaltexton spaces. Main differences between proposed descriptors rely on how co-occurrence of blob attributes is represented in the vocabularies. Our approach overcomes current state-of-art in colour texture description which is proved in several experiments on large texture datasets. |
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0031-3203 |
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Admin @ si @ AlV2012a |
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2130 |
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