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| Author |
Jordi Roca; C. Alejandro Parraga; Maria Vanrell |
| Title |
Categorical Focal Colours are Structurally Invariant Under Illuminant Changes |
Type |
Conference Article |
| Year |
2011 |
Publication |
European Conference on Visual Perception |
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196 |
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| Abstract |
The visual system perceives the colour of surfaces approximately constant under changes of illumination. In this work, we investigate how stable is the perception of categorical \“focal\” colours and their interrelations with varying illuminants and simple chromatic backgrounds. It has been proposed that best examples of colour categories across languages cluster in small regions of the colour space and are restricted to a set of 11 basic terms (Kay and Regier, 2003 Proceedings of the National Academy of Sciences of the USA 100 9085\–9089). Following this, we developed a psychophysical paradigm that exploits the ability of subjects to reliably reproduce the most representative examples of each category, adjusting multiple test patches embedded in a coloured Mondrian. The experiment was run on a CRT monitor (inside a dark room) under various simulated illuminants. We modelled the recorded data for each subject and adapted state as a 3D interconnected structure (graph) in Lab space. The graph nodes were the subject\’s focal colours at each adaptation state. The model allowed us to get a better distance measure between focal structures under different illuminants. We found that perceptual focal structures tend to be preserved better than the structures of the physical \“ideal\” colours under illuminant changes. |
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Perception 40 |
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ECVP |
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CIC |
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no |
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Admin @ si @ RPV2011 |
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1867 |
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| Author |
Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva |
| Title |
Multiresolution colour texture representations for tile classification |
Type |
Miscellaneous |
| Year |
1999 |
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Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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Bilbao |
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ADAS;CIC |
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ADAS @ adas @ LBV1999a |
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3 |
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| Author |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
| Title |
Visual behaviours for binocular navigation with autonomous systems. |
Type |
Miscellaneous |
| Year |
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 |
Maria Vanrell; Jordi Vitria; Xavier Roca |
| Title |
A multidimensional scaling approach to explore the behavior of a texture perception algorithm. |
Type |
Journal Article |
| Year |
1997 |
Publication |
Machine Vision and Applications |
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9 |
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262–271 |
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OR;ISE;CIC;MV |
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BCNPCL @ bcnpcl @ VVR1997 |
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35 |
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| Author |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
| Title |
Gaze control in a binocular robot systems |
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Miscellaneous |
| Year |
1999 |
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Barcelona |
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OR;ISE;CIC;MV |
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no |
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BCNPCL @ bcnpcl @ RVV1999b |
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41 |
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| Author |
Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva |
| Title |
Multiresolution texture classification of ceramic tiles. |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Recent Research developments in optical engineering, Research Signpost, 2: 213–228 |
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India |
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ADAS;CIC |
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ADAS @ adas @ LBV1999b |
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45 |
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| Author |
Robert Benavente; M.C. Olive; Maria Vanrell; Ramon Baldrich |
| Title |
Colour Perception: A Simple Method for Colour Naming. |
Type |
Miscellaneous |
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1999 |
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Girona |
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no |
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CAT @ cat @ BOV1999 |
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47 |
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| Author |
Robert Benavente; Maria Vanrell |
| Title |
A colour naming experiment |
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Report |
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2001 |
Publication |
CVC Technical Report #56 |
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CVC (UAB) |
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no |
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CAT @ cat @ BeV2001 |
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78 |
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| Author |
Felipe Lumbreras; Joan Serrat; Ramon Baldrich; Maria Vanrell; Juan J. Villanueva |
| Title |
Color Texture Recognition Through Multiresolution Features |
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Miscellaneous |
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2001 |
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QCAV 2001 International Conference on Quality Control by Artificial Vision, France, 1:114–121. |
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ADAS;CIC |
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no |
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ADAS @ adas @ LSB2001 |
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124 |
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| Author |
Maria Vanrell; Jordi Vitria; Xavier Roca |
| Title |
A General Morphological Framework for Perceptual Texture Discrimination based on Granulometries. |
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Miscellaneous |
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1993 |
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Technical Workshop on Mathematical Morphology and its Applications to Signal Processing. |
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Barcelona |
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OR;ISE;CIC;MV |
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no |
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BCNPCL @ bcnpcl @ VVR1993 |
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154 |
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| Author |
Maria Vanrell; Felipe Lumbreras; A. Pujol; Ramon Baldrich; Josep Llados; Juan J. Villanueva |
| Title |
Colour Normalisation Based on Background Information. |
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Miscellaneous |
| Year |
2001 |
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Proceeding ICIP 2001, IEEE International Conference on Image Processing |
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ICIP 2001 |
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1 |
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874–877 |
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Grecia. |
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ADAS;DAG;CIC |
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no |
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ADAS @ adas @ VLP2001 |
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167 |
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| Author |
Maria Vanrell; Jordi Vitria |
| Title |
Mathematical Morphology, Granulometries and Texture Perception. |
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Miscellaneous |
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1993 |
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SPIE International Symposium on Optical Instrumentation and Applied Science (Conference on image Algebra and Morphological image Processing IV). |
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San Diego; CA; USA |
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OR;CIC;MV |
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BCNPCL @ bcnpcl @ VaV1993 |
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178 |
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| Author |
Robert Benavente; Gemma Sanchez; Ramon Baldrich; Maria Vanrell; Josep Llados |
| Title |
Normalized colour segmentation for human appearance description. |
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Miscellaneous |
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2000 |
Publication |
15 th International Conference on Pattern Recognition, 3:637–641. |
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Barcelona. |
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DAG;CIC |
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CAT @ cat @ BSB2000 |
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223 |
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| Author |
Robert Benavente; Ramon Baldrich; M.C. Olive; Maria Vanrell |
| Title |
Colour Naming Considering the Colour Variability Problem. |
Type |
Miscellaneous |
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2000 |
Publication |
Computacion y Sistemas, 4(1):30–43. |
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CIC |
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CAT @ cat @ BBO2000 |
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242 |
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