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David Guillamet; Jordi Vitria |
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Title |
Unsupervised Learning of Part-Based Representations |
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2001 |
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Proceedings 9th International Conference CAIP 2001,700–708, W. Skarbek (Ed.): Computer Analysis of Images and Patterns, LNCS 2059, Springer Verlag, 123–134. |
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BCNPCL @ bcnpcl @ GVi2001b |
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106 |
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Author |
David Guillamet; Jordi Vitria |
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Title |
Determining a Suitable Metric when using Non-negative Matrix Factorization. |
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Miscellaneous |
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2002 |
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IEEE International Conference on Pattern Recognition, 2: 128–131. |
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Quebec, Canada |
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BCNPCL @ bcnpcl @ GVi2002 |
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294 |
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Author |
C. Gratin; Jordi Vitria; F. Moreso; D. Seron |
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Title |
Texture Classification using Neural Networks and Local Granulometries |
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1994 |
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EURASIP Workshop, Mathematical Morphology and Its Applications to image Processing, J.Serra and P.Soille, editors |
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309-316 |
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Neural Networks; Granulometry; Kidney; Texture; Classication |
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Fointanebleau, France |
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OR;MV |
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BCNPCL @ bcnpcl @ GVM1994 |
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110 |
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Author |
David Guillamet; Jordi Vitria; B. Shiele |
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Title |
Introducing a weighted non-negative matrix factorization for image classification |
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2003 |
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Pattern Recognition Letters |
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PRL |
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24 |
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14 |
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2447–2454 |
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IF: 0.809 |
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OR;MV |
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BCNPCL @ bcnpcl @ GVS2003 |
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382 |
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Author |
Antonio Hernandez; Carlo Gatta; Petia Radeva; Laura Igual; R. Letaz; Sergio Escalera |
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Title |
Automatic Vessel Segmentation For Angiography and CT Registration |
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Conference Article |
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2010 |
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Medical Image Computing in Catalunya: Graduate Student Workshop |
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1–2 |
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Girona |
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MICCAT |
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MILAB;HUPBA |
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no |
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BCNPCL @ bcnpcl @ HGR2010 |
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1474 |
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Author |
Antonio Hernandez; Miguel Reyes; Sergio Escalera; Petia Radeva |
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Title |
Spatio-Temporal GrabCut human segmentation for face and pose recovery |
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Conference Article |
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2010 |
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IEEE International Workshop on Analysis and Modeling of Faces and Gestures |
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33–40 |
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In this paper, we present a full-automatic Spatio-Temporal GrabCut human segmentation methodology. GrabCut initialization is performed by a HOG-based subject detection, face detection, and skin color model for seed initialization. Spatial information is included by means of Mean Shift clustering whereas temporal coherence is considered by the historical of Gaussian Mixture Models. Moreover, human segmentation is combined with Shape and Active Appearance Models to perform full face and pose recovery. Results over public data sets as well as proper human action base show a robust segmentation and recovery of both face and pose using the presented methodology. |
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San Francisco; CA; USA; June 2010 |
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2160-7508 |
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978-1-4244-7029-7 |
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AMFG |
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MILAB;HUPBA |
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no |
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BCNPCL @ bcnpcl @ HRE2010 |
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1362 |
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Author |
Cesar Isaza; Joaquin Salas; Bogdan Raducanu |
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Title |
Toward the Detection of Urban Infrastructures Edge Shadows |
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Conference Article |
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2010 |
Publication |
12th International Conference on Advanced Concepts for Intelligent Vision Systems |
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6474 |
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I |
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30–37 |
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In this paper, we propose a novel technique to detect the shadows cast by urban infrastructure, such as buildings, billboards, and traffic signs, using a sequence of images taken from a fixed camera. In our approach, we compute two different background models in parallel: one for the edges and one for the reflected light intensity. An algorithm is proposed to train the system to distinguish between moving edges in general and edges that belong to static objects, creating an edge background model. Then, during operation, a background intensity model allow us to separate between moving and static objects. Those edges included in the moving objects and those that belong to the edge background model are subtracted from the current image edges. The remaining edges are the ones cast by urban infrastructure. Our method is tested on a typical crossroad scene and the results show that the approach is sound and promising. |
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Sydney, Australia |
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Springer Berlin Heidelberg |
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eds. Blanc–Talon et al |
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0302-9743 |
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978-3-642-17687-6 |
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ACIVS |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ ISR2010 |
Serial |
1458 |
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Author |
Laura Igual; Santiago Segui; Jordi Vitria; Fernando Azpiroz; Petia Radeva |
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Title |
Eigenmotion-Based Detection of Intestinal Contractions |
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Conference Article |
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2007 |
Publication |
Computer Analysis of Images and Patterns, 12th International Conference |
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4673 |
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293–300 |
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Vienna (Austria) |
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978-3-540-74271-5 |
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CAIP |
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OR;MILAB;MV |
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no |
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BCNPCL @ bcnpcl @ ISV2007a |
Serial |
895 |
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Author |
Laura Igual; Santiago Segui; Jordi Vitria; Fernando Azpiroz; Petia Radeva |
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Title |
Sparse Bayesian Feature Selection Applied to Intestinal Motility Analysis |
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Conference Article |
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2007 |
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XVI Congreso Argentino de Bioingenieria |
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467–470 |
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San Juan (Argentina) |
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SABI |
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MILAB;OR;MV |
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no |
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BCNPCL @ bcnpcl @ ISV2007b |
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896 |
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Author |
D. Jayagopi; Bogdan Raducanu; D. Gatica-Perez |
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Title |
Characterizing conversational group dynamics using nonverbal behaviour |
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Conference Article |
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2009 |
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10th IEEE International Conference on Multimedia and Expo |
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370–373 |
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This paper addresses the novel problem of characterizing conversational group dynamics. It is well documented in social psychology that depending on the objectives a group, the dynamics are different. For example, a competitive meeting has a different objective from that of a collaborative meeting. We propose a method to characterize group dynamics based on the joint description of a group members' aggregated acoustical nonverbal behaviour to classify two meeting datasets (one being cooperative-type and the other being competitive-type). We use 4.5 hours of real behavioural multi-party data and show that our methodology can achieve a classification rate of upto 100%. |
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New York, USA |
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1945-7871 |
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978-1-4244-4290-4 |
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ICME |
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OR;MV |
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BCNPCL @ bcnpcl @ JRG2009 |
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1217 |
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Author |
Matthias S. Keil; Jordi Vitria |
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Does the brain generate representations of smooth brightness gradients? A novel account for Mach bands, Chevreul’s illusion, and a variant of the Ehrenstein disk |
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2005 |
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Perception 34:209–210 Suppl. S (IF: 1.391) |
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BCNPCL @ bcnpcl @ KeV2005a |
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608 |
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Author |
Matthias S. Keil; Jordi Vitria |
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Does the brain generate representations of smooth brightness gradients? A novel account for Mach bands, Chevreul’s illusion, and a variant of the Ehrenstein disk |
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2005 |
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European Conference on Visual Perception |
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BCNPCL @ bcnpcl @ KeV2005b |
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607 |
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Author |
Matthias S. Keil; Jordi Vitria |
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Title |
Pushing it to the Limit: Adaptation with Dynamically Switching Gain Control |
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2007 |
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EURASIP Journal on Advances in Signal Processing, Vol 2007, Article ID 51684, 10 pages, doi: 10.1155/2007/51684 |
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BCNPCL @ bcnpcl @ KeV2007 |
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794 |
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Matthias S. Keil; Agata Lapedriza; David Masip; Jordi Vitria |
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Preferred Spatial Frequencies for Human Face Processing Are Associated with Optimal Class Discrimination in the Machine |
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2008 |
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PLoS ONE 3(7):e2590, DOI:10.1371/journal.pone.0002590 |
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BCNPCL @ bcnpcl @ KLM2008 |
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978 |
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Author |
Agata Lapedriza |
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Face Classification using External Face Features |
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2005 |
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CVC Technical Report #83 |
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CVC (UAB) |
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BCNPCL @ bcnpcl @ Lap2005 |
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551 |
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