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Author Marcos V Conde; Javier Vazquez; Michael S Brown; Radu TImofte edit   pdf
url  openurl
Title NILUT: Conditional Neural Implicit 3D Lookup Tables for Image Enhancement Type Conference Article
Year 2024 Publication 38th AAAI Conference on Artificial Intelligence Abbreviated Journal  
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Abstract (down) 3D lookup tables (3D LUTs) are a key component for image enhancement. Modern image signal processors (ISPs) have dedicated support for these as part of the camera rendering pipeline. Cameras typically provide multiple options for picture styles, where each style is usually obtained by applying a unique handcrafted 3D LUT. Current approaches for learning and applying 3D LUTs are notably fast, yet not so memory-efficient, as storing multiple 3D LUTs is required. For this reason and other implementation limitations, their use on mobile devices is less popular. In this work, we propose a Neural Implicit LUT (NILUT), an implicitly defined continuous 3D color transformation parameterized by a neural network. We show that NILUTs are capable of accurately emulating real 3D LUTs. Moreover, a NILUT can be extended to incorporate multiple styles into a single network with the ability to blend styles implicitly. Our novel approach is memory-efficient, controllable and can complement previous methods, including learned ISPs.  
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Area Expedition Conference AAAI  
Notes CIC; MACO Approved no  
Call Number Admin @ si @ CVB2024 Serial 3872  
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Author Javier Vazquez; C. Alejandro Parraga; Maria Vanrell edit  openurl
Title Ordinal pairwise method for natural images comparison Type Journal Article
Year 2009 Publication Perception Abbreviated Journal PER  
Volume 38 Issue Pages 180  
Keywords  
Abstract (down) 38(Suppl.)ECVP Abstract Supplement
We developed a new psychophysical method to compare different colour appearance models when applied to natural scenes. The method was as follows: two images (processed by different algorithms) were displayed on a CRT monitor and observers were asked to select the most natural of them. The original images were gathered by means of a calibrated trichromatic digital camera and presented one on top of the other on a calibrated screen. The selection was made by pressing on a 6-button IR box, which allowed observers to consider not only the most natural but to rate their selection. The rating system allowed observers to register how much more natural was their chosen image (eg, much more, definitely more, slightly more), which gave us valuable extra information on the selection process. The results were analysed considering both the selection as a binary choice (using Thurstone's law of comparative judgement) and using Bradley-Terry method for ordinal comparison. Our results show a significant difference in the rating scales obtained. Although this method has been used in colour constancy algorithm comparisons, its uses are much wider, eg to compare algorithms of image compression, rendering, recolouring, etc.		  
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Notes CIC Approved no  
Call Number CAT @ cat @ VPV2009b Serial 1191  
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Author Jordi Roca; A.Owen; G.Jordan; Y.Ling; C. Alejandro Parraga; A.Hurlbert edit  url
doi  openurl
Title Inter-individual Variations in Color Naming and the Structure of 3D Color Space Type Abstract
Year 2011 Publication Journal of Vision Abbreviated Journal VSS  
Volume 12 Issue 2 Pages 166  
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Abstract (down) 36.307
Many everyday behavioural uses of color vision depend on color naming ability, which is neither measured nor predicted by most standardized tests of color vision, for either normal or anomalous color vision. Here we demonstrate a new method to quantify color naming ability by deriving a compact computational description of individual 3D color spaces. Methods: Individual observers underwent standardized color vision diagnostic tests (including anomaloscope testing) and a series of custom-made color naming tasks using 500 distinct color samples, either CRT stimuli (“light”-based) or Munsell chips (“surface”-based), with both forced- and free-choice color naming paradigms. For each subject, we defined his/her color solid as the set of 3D convex hulls computed for each basic color category from the relevant collection of categorised points in perceptually uniform CIELAB space. From the parameters of the convex hulls, we derived several indices to characterise the 3D structure of the color solid and its inter-individual variations. Using a reference group of 25 normal trichromats (NT), we defined the degree of normality for the shape, location and overlap of each color region, and the extent of “light”-“surface” agreement. Results: Certain features of color perception emerge from analysis of the average NT color solid, e.g.: (1) the white category is slightly shifted towards blue; and (2) the variability in category border location across NT subjects is asymmetric across color space, with least variability in the blue/green region. Comparisons between individual and average NT indices reveal specific naming “deficits”, e.g.: (1) Category volumes for white, green, brown and grey are expanded for anomalous trichromats and dichromats; and (2) the focal structure of color space is disrupted more in protanopia than other forms of anomalous color vision. The indices both capture the structure of subjective color spaces and allow us to quantify inter-individual differences in color naming ability.		  
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ISSN 1534-7362 ISBN Medium  
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Notes CIC Approved no  
Call Number Admin @ si @ ROJ2011 Serial 1758  
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Author Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva edit  openurl
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 Abbreviated Journal  
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Abstract (down)  
Address Bilbao  
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Area Expedition Conference  
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 edit  openurl
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 Abbreviated Journal  
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Abstract (down)  
Address Bilbao  
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Series Editor Series Title Abbreviated Series Title  
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Area Expedition Conference  
Notes OR;ISE;CIC;MV Approved no  
Call Number BCNPCL @ bcnpcl @ RVV1999a Serial 13  
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Author A. Pujol; Jordi Vitria; Petia Radeva; X. Binefa; Robert Benavente; Ernest Valveny; Craig Von Land edit  openurl
Title Real time pharmaceutical product recognition using color and shape indexing. Type Conference Article
Year 1999 Publication Proceedings of the 2nd International Workshop on European Scientific and Industrial Collaboration (WESIC´99), Promotoring Advanced Technologies in Manufacturing. Abbreviated Journal  
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Abstract (down)  
Address Wales  
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Notes OR;MILAB;DAG;CIC;MV Approved no  
Call Number BCNPCL @ bcnpcl @ PVR1999 Serial 24  
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Author Maria Vanrell; Jordi Vitria; Xavier Roca edit  openurl
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  
Volume 9 Issue Pages 262–271  
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Notes OR;ISE;CIC;MV Approved no  
Call Number BCNPCL @ bcnpcl @ VVR1997 Serial 35  
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Author Xavier Roca; Jordi Vitria; Maria Vanrell; Juan J. Villanueva edit  openurl
Title Gaze control in a binocular robot systems Type Miscellaneous
Year 1999 Publication Abbreviated Journal  
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Abstract (down)  
Address Barcelona  
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Area Expedition Conference  
Notes OR;ISE;CIC;MV Approved no  
Call Number BCNPCL @ bcnpcl @ RVV1999b Serial 41  
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Author Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva edit  openurl
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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Abstract (down)  
Address India  
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Notes ADAS;CIC Approved no  
Call Number ADAS @ adas @ LBV1999b Serial 45  
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Author Robert Benavente; M.C. Olive; Maria Vanrell; Ramon Baldrich edit  openurl
Title Colour Perception: A Simple Method for Colour Naming. Type Miscellaneous
Year 1999 Publication Abbreviated Journal  
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Abstract (down)  
Address Girona  
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Notes CIC Approved no  
Call Number CAT @ cat @ BOV1999 Serial 47  
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Author Robert Benavente edit  openurl
Title Dealing with colour variability: application to a colour naming task Type Report
Year 1999 Publication CVC Technical Report #32 Abbreviated Journal  
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Abstract (down)  
Address CVC (UAB)  
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Notes CIC Approved no  
Call Number CAT @ cat @ Ben1999 Serial 53  
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Author Jordi Vitria; Petia Radeva; X. Binefa; A. Pujol; Ernest Valveny; Robert Benavente; Craig Von Land edit  openurl
Title Real time recognition of pharmaceutical products by subspace methods Type Report
Year 1999 Publication CVC Technical Report #35 Abbreviated Journal  
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Address CVC (UAB)  
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Notes OR;MILAB;DAG;CIC;MV Approved no  
Call Number BCNPCL @ bcnpcl @ VRB1999b Serial 54  
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Author Ramon Baldrich edit  openurl
Title Perceptual approach to a computational colour-texture representation for surface inspection. Type Book Whole
Year 2001 Publication PhD Thesis, Universitat Autonoma de Barcelona-CVC Abbreviated Journal  
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Notes CIC Approved no  
Call Number CAT @ cat @ Bal2001 Serial 73  
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Author Robert Benavente; Maria Vanrell edit  openurl
Title A colour naming experiment Type Report
Year 2001 Publication CVC Technical Report #56 Abbreviated Journal  
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Abstract (down)  
Address CVC (UAB)  
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Notes CIC Approved no  
Call Number CAT @ cat @ BeV2001 Serial 78  
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Author O. Fors; Xavier Otazu; J. Nuñez edit  openurl
Title Fusion Mediante Wavelets de Imagenes Spot-pan y del Satelite Tailandes TMSAT. Type Miscellaneous
Year 2001 Publication Teledeteccion, Medio Ambiente y Cambio Global, IX Congreso Nacional de Teledeteccion, 546–550. Abbreviated Journal  
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Abstract (down)  
Address Lleida  
Corporate Author Thesis  
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Series Editor Series Title Abbreviated Series Title  
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Area Expedition Conference  
Notes CIC Approved no  
Call Number CAT @ cat @ FON2001 Serial 94  
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Author Felipe Lumbreras; Xavier Roca; Daniel Ponsa; Robert Benavente; J. Martinez; Silvia Sanchez; Coen Antens; Juan J. Villanueva edit  openurl
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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Abstract (down)  
Address France  
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ISSN ISBN Medium  
Area Expedition Conference QCAV  
Notes ADAS;ISE;CIC Approved no  
Call Number ADAS @ adas @ LRP2001 Serial 122  
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Author Felipe Lumbreras; Joan Serrat; Ramon Baldrich; Maria Vanrell; Juan J. Villanueva edit  openurl
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. Abbreviated Journal  
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Notes ADAS;CIC Approved no  
Call Number ADAS @ adas @ LSB2001 Serial 124  
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Author Xavier Otazu; J. Nuñez edit  openurl
Title Algoritmo de Clasificacion no Supervisada Basado en Wavelets. Type Miscellaneous
Year 2001 Publication Teledeteccion, Medio Ambiente y Cambio Global, IX Congreso Nacional de Teledeteccion, 437–440. Abbreviated Journal  
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Abstract (down)  
Address Lleida  
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Notes CIC Approved no  
Call Number CAT @ cat @ ONu2001 Serial 147  
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