| Records |
| Author |
Eduard Vazquez; Ramon Baldrich; Joost Van de Weijer; Maria Vanrell |
| Title |
Describing Reflectances for Colour Segmentation Robust to Shadows, Highlights and Textures |
Type |
Journal Article |
| Year |
2011 |
Publication |
IEEE Transactions on Pattern Analysis and Machine Intelligence |
Abbreviated Journal |
TPAMI |
| Volume |
33 |
Issue |
5 |
Pages |
917-930 |
| Keywords |
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| Abstract |
The segmentation of a single material reflectance is a challenging problem due to the considerable variation in image measurements caused by the geometry of the object, shadows, and specularities. The combination of these effects has been modeled by the dichromatic reflection model. However, the application of the model to real-world images is limited due to unknown acquisition parameters and compression artifacts. In this paper, we present a robust model for the shape of a single material reflectance in histogram space. The method is based on a multilocal creaseness analysis of the histogram which results in a set of ridges representing the material reflectances. The segmentation method derived from these ridges is robust to both shadow, shading and specularities, and texture in real-world images. We further complete the method by incorporating prior knowledge from image statistics, and incorporate spatial coherence by using multiscale color contrast information. Results obtained show that our method clearly outperforms state-of-the-art segmentation methods on a widely used segmentation benchmark, having as a main characteristic its excellent performance in the presence of shadows and highlights at low computational cost. |
| Address |
Los Alamitos; CA; USA; |
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| Publisher |
IEEE Computer Society |
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0162-8828 |
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CIC |
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no |
| Call Number |
Admin @ si @ VBW2011 |
Serial |
1715 |
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| Author |
Naila Murray; Maria Vanrell; Xavier Otazu; C. Alejandro Parraga |
| Title |
Low-level SpatioChromatic Grouping for Saliency Estimation |
Type |
Journal Article |
| Year |
2013 |
Publication |
IEEE Transactions on Pattern Analysis and Machine Intelligence |
Abbreviated Journal |
TPAMI |
| Volume |
35 |
Issue |
11 |
Pages |
2810-2816 |
| Keywords |
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| Abstract |
We propose a saliency model termed SIM (saliency by induction mechanisms), which is based on a low-level spatiochromatic model that has successfully predicted chromatic induction phenomena. In so doing, we hypothesize that the low-level visual mechanisms that enhance or suppress image detail are also responsible for making some image regions more salient. Moreover, SIM adds geometrical grouplets to enhance complex low-level features such as corners, and suppress relatively simpler features such as edges. Since our model has been fitted on psychophysical chromatic induction data, it is largely nonparametric. SIM outperforms state-of-the-art methods in predicting eye fixations on two datasets and using two metrics. |
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0162-8828 |
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| Notes |
CIC; 600.051; 600.052; 605.203 |
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no |
| Call Number |
Admin @ si @ MVO2013 |
Serial |
2289 |
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| Author |
Susana Alvarez; Maria Vanrell |
| Title |
Texton theory revisited: a bag-of-words approach to combine textons |
Type |
Journal Article |
| Year |
2012 |
Publication |
Pattern Recognition |
Abbreviated Journal |
PR |
| Volume |
45 |
Issue |
12 |
Pages |
4312-4325 |
| Keywords |
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| Abstract |
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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CIC |
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no |
| Call Number |
Admin @ si @ AlV2012a |
Serial |
2130 |
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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 |
Publication |
Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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| Address |
Bilbao |
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| Notes |
ADAS;CIC |
Approved |
no |
| Call Number |
ADAS @ adas @ LBV1999a |
Serial |
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 |
Publication |
Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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Bilbao |
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OR;ISE;CIC;MV |
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no |
| Call Number |
BCNPCL @ bcnpcl @ RVV1999a |
Serial |
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 |
Abbreviated Journal |
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| Volume |
9 |
Issue |
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Pages |
262–271 |
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OR;ISE;CIC;MV |
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no |
| Call Number |
BCNPCL @ bcnpcl @ VVR1997 |
Serial |
35 |
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| Author |
Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva |
| Title |
Gaze control in a binocular robot systems |
Type |
Miscellaneous |
| Year |
1999 |
Publication |
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| Address |
Barcelona |
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| Notes |
OR;ISE;CIC;MV |
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no |
| Call Number |
BCNPCL @ bcnpcl @ RVV1999b |
Serial |
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 |
Approved |
no |
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ADAS @ adas @ LBV1999b |
Serial |
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 |
| Year |
1999 |
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Girona |
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CIC |
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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 |
Type |
Report |
| Year |
2001 |
Publication |
CVC Technical Report #56 |
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CVC (UAB) |
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CIC |
Approved |
no |
| Call Number |
CAT @ cat @ BeV2001 |
Serial |
78 |
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| Author |
Felipe Lumbreras; Joan Serrat; Ramon Baldrich; Maria Vanrell; Juan J. Villanueva |
| Title |
Color Texture Recognition Through Multiresolution Features |
Type |
Miscellaneous |
| Year |
2001 |
Publication |
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 |
| Call Number |
ADAS @ adas @ LSB2001 |
Serial |
124 |
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| Author |
Maria Vanrell; Jordi Vitria; Xavier Roca |
| Title |
A General Morphological Framework for Perceptual Texture Discrimination based on Granulometries. |
Type |
Miscellaneous |
| Year |
1993 |
Publication |
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 |
Serial |
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. |
Type |
Miscellaneous |
| Year |
2001 |
Publication |
Proceeding ICIP 2001, IEEE International Conference on Image Processing |
Abbreviated Journal |
ICIP 2001 |
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1 |
Pages |
874–877 |
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Grecia. |
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ADAS;DAG;CIC |
Approved |
no |
| Call Number |
ADAS @ adas @ VLP2001 |
Serial |
167 |
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| Author |
Maria Vanrell; Jordi Vitria |
| Title |
Mathematical Morphology, Granulometries and Texture Perception. |
Type |
Miscellaneous |
| Year |
1993 |
Publication |
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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no |
| Call Number |
BCNPCL @ bcnpcl @ VaV1993 |
Serial |
178 |
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