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| Author | C. Alejandro Parraga; Ramon Baldrich; Maria Vanrell |
 
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| Title | Accurate Mapping of Natural Scenes Radiance to Cone Activation Space: A New Image Dataset | Type | Conference Article | |||
| Year | 2010 | Publication | 5th European Conference on Colour in Graphics, Imaging and Vision and 12th International Symposium on Multispectral Colour Science | Abbreviated Journal | ||
| Volume | Issue | Pages | 50–57 | |||
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| Abstract | The characterization of trichromatic cameras is usually done in terms of a device-independent color space, such as the CIE 1931 XYZ space. This is indeed convenient since it allows the testing of results against colorimetric measures. We have characterized our camera to represent human cone activation by mapping the camera sensor's (RGB) responses to human (LMS) through a polynomial transformation, which can be “customized” according to the types of scenes we want to represent. Here we present a method to test the accuracy of the camera measures and a study on how the choice of training reflectances for the polynomial may alter the results. | |||||
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Joensuu, Finland | |||||
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| ISSN | ISBN | 9781617388897 | Medium | |||
| Area | Expedition | Conference | CGIV/MCS | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ PBV2010a | Serial | 1322 | |||
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| Author | Javier Vazquez; G. D. Finlayson; Maria Vanrell |
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| Title | A compact singularity function to predict WCS data and unique hues | Type | Conference Article | |||
| Year | 2010 | Publication | 5th European Conference on Colour in Graphics, Imaging and Vision and 12th International Symposium on Multispectral Colour Science | Abbreviated Journal | ||
| Volume | Issue | Pages | 33–38 | |||
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| Abstract | Understanding how colour is used by the human vision system is a widely studied research field. The field, though quite advanced, still faces important unanswered questions. One of them is the explanation of the unique hues and the assignment of color names. This problem addresses the fact of different perceptual status for different colors.
Recently, Philipona and O'Regan have proposed a biological model that allows to extract the reflection properties of any surface independently of the lighting conditions. These invariant properties are the basis to compute a singularity index that predicts the asymmetries presented in unique hues and basic color categories psychophysical data, therefore is giving a further step in their explanation. In this paper we build on their formulation and propose a new singularity index. This new formulation equally accounts for the location of the 4 peaks of the World colour survey and has two main advantages. First, it is a simple elegant numerical measure (the Philipona measurement is a rather cumbersome formula). Second, we develop a colour-based explanation for the measure. |
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| Address |
Joensuu, Finland | |||||
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| ISSN | ISBN | 9781617388897 | Medium | |||
| Area | Expedition | Conference | CGIV/MCS | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VFV2010 | Serial | 1324 | |||
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| Author | Susana Alvarez; Anna Salvatella; Maria Vanrell; Xavier Otazu |
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| Title | Perceptual color texture codebooks for retrieving in highly diverse texture datasets | Type | Conference Article | |||
| Year | 2010 | Publication | 20th International Conference on Pattern Recognition | Abbreviated Journal | ||
| Volume | Issue | Pages | 866–869 | |||
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| Abstract | Color and texture are visual cues of different nature, their integration in a useful visual descriptor is not an obvious step. One way to combine both features is to compute texture descriptors independently on each color channel. A second way is integrate the features at a descriptor level, in this case arises the problem of normalizing both cues. A significant progress in the last years in object recognition has provided the bag-of-words framework that again deals with the problem of feature combination through the definition of vocabularies of visual words. Inspired in this framework, here we present perceptual textons that will allow to fuse color and texture at the level of p-blobs, which is our feature detection step. Feature representation is based on two uniform spaces representing the attributes of the p-blobs. The low-dimensionality of these text on spaces will allow to bypass the usual problems of previous approaches. Firstly, no need for normalization between cues; and secondly, vocabularies are directly obtained from the perceptual properties of text on spaces without any learning step. Our proposal improve current state-of-art of color-texture descriptors in an image retrieval experiment over a highly diverse texture dataset from Corel. | |||||
| Address |
Istanbul (Turkey) | |||||
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| ISSN | 1051-4651 | ISBN | 978-1-4244-7542-1 | Medium | ||
| Area | Expedition | Conference | ICPR | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ ASV2010b | Serial | 1426 | |||
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| Author | Eduard Vazquez; Francesc Tous; Ramon Baldrich; Maria Vanrell |
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| Title | n-Dimensional Distribution Reduction Preserving its Structure | Type | Book Chapter | |||
| Year | 2006 | Publication | Artificial Intelligence Research and Development, M. Polit et al. (Eds.), 146: 167–175 | Abbreviated Journal | ||
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| Address |
IOS Press | |||||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VTB2006a | Serial | 681 | |||
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| Author | Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva |
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| Title | Multiresolution texture classification of ceramic tiles. | Type | Book Chapter | |||
| Year | 1999 | Publication | Recent Research developments in optical engineering, Research Signpost, 2: 213–228 | Abbreviated Journal | ||
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| Address |
India | |||||
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| Notes | ADAS;CIC | Approved | no | |||
| Call Number | ADAS @ adas @ LBV1999b | Serial | 45 | |||
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| Author | Naila Murray; Luca Marchesotti; Florent Perronnin |
 
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| Title | Learning to Rank Images using Semantic and Aesthetic Labels | Type | Conference Article | |||
| Year | 2012 | Publication | 23rd British Machine Vision Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 110.1-110.10 | |||
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| Abstract | Most works on image retrieval from text queries have addressed the problem of retrieving semantically relevant images. However, the ability to assess the aesthetic quality of an image is an increasingly important differentiating factor for search engines. In this work, given a semantic query, we are interested in retrieving images which are semantically relevant and score highly in terms of aesthetics/visual quality. We use large-margin classifiers and rankers to learn statistical models capable of ordering images based on the aesthetic and semantic information. In particular, we compare two families of approaches: while the first one attempts to learn a single ranker which takes into account both semantic and aesthetic information, the second one learns separate semantic and aesthetic models. We carry out a quantitative and qualitative evaluation on a recently-published large-scale dataset and we show that the second family of techniques significantly outperforms the first one. | |||||
| Address |
Guildford, London | |||||
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| ISSN | ISBN | 1-901725-46-4 | Medium | |||
| Area | Expedition | Conference | BMVC | |||
| Notes | CIC | Approved | no | |||
| Call Number | Admin @ si @ MMP2012b | Serial | 2027 | |||
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| Author | Maria Vanrell; Felipe Lumbreras; A. Pujol; Ramon Baldrich; Josep Llados; Juan J. Villanueva |
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| 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 | |
| Volume | Issue | 1 | Pages | 874–877 | ||
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| Address |
Grecia. | |||||
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| Notes | ADAS;DAG;CIC | Approved | no | |||
| Call Number | ADAS @ adas @ VLP2001 | Serial | 167 | |||
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| Author | Naila Murray; Eduard Vazquez |
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| Title | Lacuna Restoration: How to choose a neutral colour? | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 248–252 | |||
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| Abstract | Painting restoration which involves filling in material loss (called lacuna) is a complex process. Several standard techniques exist to tackle lacuna restoration,
and this article focuses on those techniques that employ a “neutral” colour to mask the defect. Restoration experts often disagree on the choice of such a colour and in fact, the concept of a neutral colour is controversial. We posit that a neutral colour is one that attracts relatively little visual attention for a specific lacuna. We conducted an eye tracking experiment to compare two common neutral colour selection methods, specifically the most common local colour and the mean local colour. Results obtained demonstrate that the most common local colour triggers less visual attention in general. Notwithstanding, we have observed instances in which the most common colour triggers a significant amount of attention when subjects spent time resolving their confusion about whether or not a lacuna was part of the painting. |
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| Address |
Gjovik, Norway | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | Admin @ si @ MuV2010 | Serial | 1297 | |||
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| Author | Eduard Vazquez; Ramon Baldrich |
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| Title | Non-supervised goodness measure for image segmentation | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 334–335 | |||
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| Address |
Gjovik, Norway | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VaB2010 | Serial | 1299 | |||
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| Author | Jaime Moreno; Xavier Otazu; Maria Vanrell |
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| Title | Contribution of CIWaM in JPEG2000 Quantization for Color Images | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 132–136 | |||
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| Abstract | The aim of this work is to explain how to apply perceptual concepts to define a perceptual pre-quantizer and to improve JPEG2000 compressor. The approach consists in quantizing wavelet transform coefficients using some of the human visual system behavior properties. Noise is fatal to image compression performance, because it can be both annoying for the observer and consumes excessive bandwidth when the imagery is transmitted. Perceptual pre-quantization reduces unperceivable details and thus improve both visual impression and transmission properties. The comparison between JPEG2000 without and with perceptual pre-quantization shows that the latter is not favorable in PSNR, but the recovered image is more compressed at the same or even better visual quality measured with a weighted PSNR. Perceptual criteria were taken from the CIWaM(ChromaticInductionWaveletModel). | |||||
| Address |
Gjovik (Norway) | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ MOV2010b | Serial | 1308 | |||
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| Author | Javier Vazquez; Maria Vanrell; Robert Benavente |
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| Title | Color names as a constraint for Computer Vision problems | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 324–328 | |||
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| Abstract | Computer Vision Problems are usually ill-posed. Constraining de gamut of possible solutions is then a necessary step. Many constrains for different problems have been developed during years. In this paper, we present a different way of constraining some of these problems: the use of color names. In particular, we will focus on segmentation, representation ans constancy. | |||||
| Address |
Gjovik (Norway) | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VVB2010 | Serial | 1328 | |||
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| Author | Fahad Shahbaz Khan; Joost Van de Weijer; Maria Vanrell |
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| Title | Who Painted this Painting? | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 329–333 | |||
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| Address |
Gjovik (Norway) | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ KWV2010 | Serial | 1329 | |||
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| Author | Shida Beigpour; Joost Van de Weijer |
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| Title | Photo-Realistic Color Alteration for Architecture and Design | Type | Conference Article | |||
| Year | 2010 | Publication | Proceedings of The CREATE 2010 Conference | Abbreviated Journal | ||
| Volume | Issue | Pages | 84–88 | |||
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| Abstract | As color is a strong stimuli we receive from the exterior world, choosing the right color can prove crucial in creating the desired architecture and desing. We propose a framework to apply a realistic color change on both objects and their illuminant lights for snapshots of architectural designs, in order to visualize and choose the right color before actully applying the change in the real world. The proposed framework is based on the laws of physics in order to accomplish realistic and physically plausible results. | |||||
| Address |
Gjovik (Norway) | |||||
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| Area | Expedition | Conference | CREATE | |||
| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ BeW2010 | Serial | 1330 | |||
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| Author | Robert Benavente; M.C. Olive; Maria Vanrell; Ramon Baldrich |
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| Title | Colour Perception: A Simple Method for Colour Naming. | Type | Miscellaneous | |||
| Year | 1999 | Publication | Abbreviated Journal | |||
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| Address |
Girona | |||||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ BOV1999 | Serial | 47 | |||
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| Author | Eduard Vazquez; Ramon Baldrich; Javier Vazquez; Maria Vanrell |
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| Title | Topological histogram reduction towards colour segmentation | Type | Book Chapter | |||
| Year | 2007 | Publication | 3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:55–62 | Abbreviated Journal | ||
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| Address |
Gerona (Spain) | |||||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VBV2007 | Serial | 809 | |||
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| Author | Jose Manuel Alvarez; Antonio Lopez; Ramon Baldrich |
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| Title | Shadow Resistant Road Segmentation from a Mobile Monocular System | Type | Conference Article | |||
| Year | 2007 | Publication | 3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:9–16 | Abbreviated Journal | ||
| Volume | Issue | Pages | ||||
| Keywords | road detection | |||||
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| Address |
Gerona (Spain) | |||||
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| Notes | ADAS;CIC | Approved | no | |||
| Call Number | ADAS @ adas @ ALB2007 | Serial | 943 | |||
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| Author | F. Lopez; J.M. Valiente; Ramon Baldrich; Maria Vanrell |
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| Title | Fast surface grading using color statistics in the CIELab space | Type | Book Chapter | |||
| Year | 2005 | Publication | LNCS 1: 666–673 | Abbreviated Journal | ||
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| Address |
Germany | |||||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ LVB2005 | Serial | 641 | |||
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| Author | Felipe Lumbreras; Xavier Roca; Daniel Ponsa; Robert Benavente; J. Martinez; Silvia Sanchez; Coen Antens; Juan J. Villanueva |
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| Title | Visual Inspection of Safety Belts | Type | Conference Article | |||
| Year | 2001 | Publication | International Conference on Quality Control by Artificial Vision | Abbreviated Journal | ||
| Volume | 2 | Issue | Pages | 526–531 | ||
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| Address |
France | |||||
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| Area | Expedition | Conference | QCAV | |||
| Notes | ADAS;ISE;CIC | Approved | no | |||
| Call Number | ADAS @ adas @ LRP2001 | Serial | 122 | |||
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