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| Author | Jordi Roca; C. Alejandro Parraga; Maria Vanrell |
 
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| Title | Predicting categorical colour perception in successive colour constancy | Type  |
Abstract | |||
| Year | 2012 | Publication | Perception | Abbreviated Journal | PER | |
| Volume | 41 | Issue | Pages | 138 | ||
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| Abstract | Colour constancy is a perceptual mechanism that seeks to keep the colour of objects relatively stable under an illumination shift. Experiments haveshown that its effects depend on the number of colours present in the scene. We
studied categorical colour changes under different adaptation states, in particular, whether the colour categories seen under a chromatically neutral illuminant are the same after a shift in the chromaticity of the illumination. To do this, we developed the chromatic setting paradigm (2011 Journal of Vision11 349), which is as an extension of achromatic setting to colour categories. The paradigm exploits the ability of subjects to reliably reproduce the most representative examples of each category, adjusting multiple test patches embedded in a coloured Mondrian. Our experiments were run on a CRT monitor (inside a dark room) under various simulated illuminants and restricting the number of colours of the Mondrian background to three, thus weakening the adaptation effect. Our results show a change in the colour categories present before (under neutral illumination) and after adaptation (under coloured illuminants) with a tendency for adapted colours to be less saturated than before adaptation. This behaviour was predicted by a simple affine matrix model, adjusted to the chromatic setting results. |
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| ISSN | 0301-0066 | ISBN | Medium | |||
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| Notes | CIC | Approved | no | |||
| Call Number | Admin @ si @ RPV2012 | Serial | 2188 | |||
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| Author | Ivet Rafegas; Maria Vanrell |
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| Title | Colour Visual Coding in trained Deep Neural Networks | Type |
Abstract | |||
| Year | 2016 | Publication | European Conference on Visual Perception | Abbreviated Journal | ||
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| Address | Barcelona; Spain; August 2016 | |||||
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| Area | Expedition | Conference | ECVP | |||
| Notes | CIC | Approved | no | |||
| Call Number | Admin @ si @ RaV2016b | Serial | 2895 | |||
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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 | Francesc Tous; Agnes Borras; Robert Benavente; Ramon Baldrich; Maria Vanrell; Josep Llados |
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| Title | Textual Descriptions for Browsing People by Visual Apperance. | Type |
Book Chapter | |||
| Year | 2002 | Publication | Lecture Notes in Artificial Intelligence | Abbreviated Journal | ||
| Volume | 2504 | Issue | Pages | 419-429 | ||
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| Abstract | This paper presents a first approach to build colour and structural descriptors for information retrieval on a people database. Queries are formulated in terms of their appearance that allows to seek people wearing specific clothes of a given colour name or texture. Descriptors are automatically computed by following three essential steps. A colour naming labelling from pixel properties. A region seg- mentation step based on colour properties of pixels combined with edge information. And a high level step that models the region arrangements in order to build clothes structure. Results are tested on large set of images from real scenes taken at the entrance desk of a building | |||||
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| Publisher | Springer Verlag | Place of Publication | Editor | |||
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| Notes | DAG;CIC | Approved | no | |||
| Call Number | CAT @ cat @ TBB2002b | Serial | 319 | |||
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| Author | Agnes Borras; Francesc Tous; Josep Llados; Maria Vanrell |
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| Title | High-Level Clothes Description Based on Color-Texture and Structural Features | Type |
Book Chapter | |||
| Year | 2003 | Publication | Lecture Notes in Computer Science | Abbreviated Journal | ||
| Volume | 2652 | Issue | Pages | 108–116 | ||
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| Abstract | This work is a part of a surveillance system where content- based image retrieval is done in terms of people appearance. Given an image of a person, our work provides an automatic description of his clothing according to the colour, texture and structural composition of its garments. We present a two-stage process composed by image segmentation and a region-based interpretation. We segment an image by modelling it due to an attributed graph and applying a hybrid method that follows a split-and-merge strategy. We propose the interpretation of five cloth combinations that are modelled in a graph structure in terms of region features. The interpretation is viewed as a graph matching with an associated cost between the segmentation and the cloth models. Fi- nally, we have tested the process with a ground-truth of one hundred images. | |||||
| Address | Springer-Verlag | |||||
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| Notes | DAG;CIC | Approved | no | |||
| Call Number | CAT @ cat @ BTL2003a | Serial | 368 | |||
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| Author | Francesc Tous; Maria Vanrell; Ramon Baldrich |
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| Title | Relaxed Grey-World: Computational Colour Constancy by Surface Matching | Type |
Book Chapter | |||
| Year | 2005 | Publication | Pattern Recognition and Image Analysis (IbPRIA 2005), LNCS 3522:192–199 | Abbreviated Journal | ||
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| Address | Estoril (Portugal) | |||||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ TVB2005 | Serial | 555 | |||
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| Author | Susana Alvarez; Xavier Otazu; Maria Vanrell |
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| Title | Image Segmentation Based on Inter-Feature Distance Maps | Type |
Book Chapter | |||
| Year | 2005 | Publication | Frontiers in Artificial Intelligence and Applications, IOS Press, 131: 75–82 | Abbreviated Journal | ||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ AOV2005 | Serial | 569 | |||
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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 | 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 | 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 | Javier Vazquez; Maria Vanrell; Anna Salvatella; Eduard Vazquez |
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| Title | A colour space based on the image content | Type |
Book Chapter | |||
| Year | 2007 | Publication | Artificial Intelligence Research and Development, C. Angulo and L. Godo, pp 205–212 IOS Press | Abbreviated Journal | ||
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| Notes | CIC | Approved | no | |||
| Call Number | CAT @ cat @ VVS2007 | Serial | 829 | |||
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| Author | Joost Van de Weijer; Robert Benavente; Maria Vanrell; Cordelia Schmid; Ramon Baldrich; Jacob Verbeek; Diane Larlus |
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| Title | Color Naming | Type |
Book Chapter | |||
| Year | 2012 | Publication | Color in Computer Vision: Fundamentals and Applications | Abbreviated Journal | ||
| Volume | Issue | 17 | Pages | 287-317 | ||
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| Publisher | John Wiley & Sons, Ltd. | Place of Publication | Editor | Theo Gevers;Arjan Gijsenij;Joost Van de Weijer;Jan-Mark Geusebroek | ||
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| Notes | CIC | Approved | no | |||
| Call Number | Admin @ si @ WBV2012 | Serial | 2063 | |||
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| Author | A.Gonzalez; Robert Benavente; Olivier Penacchio; Javier Vazquez; Maria Vanrell; C. Alejandro Parraga |
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| Title | Coloresia: An Interactive Colour Perception Device for the Visually Impaired | Type |
Book Chapter | |||
| Year | 2013 | Publication | Multimodal Interaction in Image and Video Applications | Abbreviated Journal | ||
| Volume | 48 | Issue | Pages | 47-66 | ||
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| Abstract | A significative percentage of the human population suffer from impairments in their capacity to distinguish or even see colours. For them, everyday tasks like navigating through a train or metro network map becomes demanding. We present a novel technique for extracting colour information from everyday natural stimuli and presenting it to visually impaired users as pleasant, non-invasive sound. This technique was implemented inside a Personal Digital Assistant (PDA) portable device. In this implementation, colour information is extracted from the input image and categorised according to how human observers segment the colour space. This information is subsequently converted into sound and sent to the user via speakers or headphones. In the original implementation, it is possible for the user to send its feedback to reconfigure the system, however several features such as these were not implemented because the current technology is limited.We are confident that the full implementation will be possible in the near future as PDA technology improves. | |||||
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| Publisher | Springer Berlin Heidelberg | Place of Publication | Editor | |||
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| Series Volume | Series Issue | Edition | ||||
| ISSN | 1868-4394 | ISBN | 978-3-642-35931-6 | Medium | ||
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| Notes | CIC; 600.052; 605.203 | Approved | no | |||
| Call Number | Admin @ si @ GBP2013 | Serial | 2266 | |||
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| Author | Francesc Tous; Agnes Borras; Robert Benavente; Ramon Baldrich; Maria Vanrell; Josep Llados |
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| Title | Textual Descriptors for browsing people by visual appearence. | Type |
Conference Article | |||
| Year | 2002 | Publication | 5è. Congrés Català d’Intel·ligència Artificial CCIA | Abbreviated Journal | ||
| Volume | Issue | Pages | ||||
| Keywords | Image retrieval, textual descriptors, colour naming, colour normalization, graph matching. | |||||
| Abstract | This paper presents a first approach to build colour and structural descriptors for information retrieval on a people database. Queries are formulated in terms of their appearance that allows to seek people wearing specific clothes of a given colour name or texture. Descriptors are automatically computed by following three essential steps. A colour naming labelling from pixel properties. A region seg- mentation step based on colour properties of pixels combined with edge information. And a high level step that models the region arrangements in order to build clothes structure. Results are tested on large set of images from real scenes taken at the entrance desk of a building. | |||||
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| Area | Expedition | Conference | ||||
| Notes | DAG;CIC | Approved | no | |||
| Call Number | CAT @ cat @ TBB2002a | Serial | 287 | |||
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