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Author |
David Vazquez; Antonio Lopez; Daniel Ponsa; David Geronimo |
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Title |
Interactive Training of Human Detectors |
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Book Chapter |
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Year |
2013 |
Publication |
Multiodal Interaction in Image and Video Applications |
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Volume |
48 |
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Pages |
169-182 |
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Keywords |
Pedestrian Detection; Virtual World; AdaBoost; Domain Adaptation |
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Abstract |
Image based human detection remains as a challenging problem. Most promising detectors rely on classifiers trained with labelled samples. However, labelling is a manual labor intensive step. To overcome this problem we propose to collect images of pedestrians from a virtual city, i.e., with automatic labels, and train a pedestrian detector with them, which works fine when such virtual-world data are similar to testing one, i.e., real-world pedestrians in urban areas. When testing data is acquired in different conditions than training one, e.g., human detection in personal photo albums, dataset shift appears. In previous work, we cast this problem as one of domain adaptation and solve it with an active learning procedure. In this work, we focus on the same problem but evaluating a different set of faster to compute features, i.e., Haar, EOH and their combination. In particular, we train a classifier with virtual-world data, using such features and Real AdaBoost as learning machine. This classifier is applied to real-world training images. Then, a human oracle interactively corrects the wrong detections, i.e., few miss detections are manually annotated and some false ones are pointed out too. A low amount of manual annotation is fixed as restriction. Real- and virtual-world difficult samples are combined within what we call cool world and we retrain the classifier with this data. Our experiments show that this adapted classifier is equivalent to the one trained with only real-world data but requiring 90% less manual annotations. |
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Springer Heidelberg New York Dordrecht London |
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Springer Berlin Heidelberg |
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English |
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1868-4394 |
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978-3-642-35931-6 |
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ADAS; 600.057; 600.054; 605.203 |
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VLP2013; ADAS @ adas @ vlp2013 |
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2193 |
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Author |
Joan Mas; Gemma Sanchez; Josep Llados |
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Title |
SSP: Sketching slide Presentations, a Syntactic Approach |
Type |
Book Chapter |
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Year |
2010 |
Publication |
Graphics Recognition. Achievements, Challenges, and Evolution. 8th International Workshop, GREC 2009. Selected Papers |
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6020 |
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118-129 |
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Abstract |
The design of a slide presentation is a creative process. In this process first, humans visualize in their minds what they want to explain. Then, they have to be able to represent this knowledge in an understandable way. There exists a lot of commercial software that allows to create our own slide presentations but the creativity of the user is rather limited. In this article we present an application that allows the user to create and visualize a slide presentation from a sketch. A slide may be seen as a graphical document or a diagram where its elements are placed in a particular spatial arrangement. To describe and recognize slides a syntactic approach is proposed. This approach is based on an Adjacency Grammar and a parsing methodology to cope with this kind of grammars. The experimental evaluation shows the performance of our methodology from a qualitative and a quantitative point of view. Six different slides containing different number of symbols, from 4 to 7, have been given to the users and they have drawn them without restrictions in the order of the elements. The quantitative results give an idea on how suitable is our methodology to describe and recognize the different elements in a slide. |
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Springer Berlin Heidelberg |
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LNCS |
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0302-9743 |
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978-3-642-13727-3 |
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GREC |
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DAG |
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no |
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MSL2010 |
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2405 |
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Author |
Joaquin Salas; P. Martinez; Jordi Gonzalez |
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Title |
Background Updating with the Use of Intrinsic Curves |
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Book Chapter |
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Year |
2006 |
Publication |
International Conference on Image Analysis and Recognition (ICIAR´06), LNCS 4141 (A. Campilho et al., eds.), 1: 731–742, ISBN 978–3–540–44891–4 |
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ISE @ ise @ SMG2006 |
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768 |
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Author |
Ignasi Rius; Javier Varona; Xavier Roca; Jordi Gonzalez |
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Title |
Posture Constraints for Bayesian Human Motion Tracking |
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Book Chapter |
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Year |
2006 |
Publication |
IV Conference on Articulated Motion and Deformable Objects (AMDO´06), LNCS 4069: 414–423 |
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Mallorca (Spain) |
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ISE |
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no |
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ISE @ ise @ RVR2006 |
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720 |
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Author |
Dani Rowe; I. Reid; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Unconstrained Multiple-People Tracking |
Type |
Book Chapter |
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Year |
2006 |
Publication |
28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 505–514, ISBN 978–3–540–44412–1 |
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Berlin (Germany) |
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no |
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Call Number |
ISE @ ise @ RRG2006 |
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769 |
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Author |
Ignasi Rius; Dani Rowe; Jordi Gonzalez; Xavier Roca |
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Title |
A 3D Dynamic Model of Human Actions for Probabilistic Image Tracking |
Type |
Book Chapter |
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Year |
2005 |
Publication |
Pattern Recognition and Image Analysis (IbPRIA 2005), LNCS 3522: 529–536 |
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Estoril (Portugal) |
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ISE |
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no |
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ISE @ ise @ RRG2005b |
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544 |
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Author |
Dani Rowe; Ignasi Rius; Jordi Gonzalez; Xavier Roca; Juan J. Villanueva |
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Title |
Probabilistic Image-Based Tracking: Improving Particle Filtering |
Type |
Book Chapter |
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Year |
2005 |
Publication |
Pattern Recognition and Image Analysis (IbPRIA 2005), LNCS 3522: 85–92 |
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Estoril (Portugal) |
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ISE |
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ISE @ ise @ RRG2005a |
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545 |
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Author |
Dani Rowe; Ivan Huerta; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Robust Multiple-People Tracking Using Colour-Based Particle Filters |
Type |
Book Chapter |
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Year |
2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120 |
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Girona (Spain) |
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no |
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ISE @ ise @ RHG2007 |
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782 |
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Author |
Francisco Javier Orozco; Jordi Gonzalez; Ignasi Rius; Xavier Roca |
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Title |
Hierarchical Eyelid and Face Tracking |
Type |
Book Chapter |
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Year |
2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:499–506 |
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Girona (Spain) |
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ISE |
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ISE @ ise @ OGR2007 |
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773 |
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Author |
Mikhail Mozerov; Ignasi Rius; Xavier Roca; Jordi Gonzalez |
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Title |
3D Human Motion Sequences Synchronization Using Dense Matching Algorithm |
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2006 |
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28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 485–494, ISBN 978–3–540–44412–1 |
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Berlin (Germany) |
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ISE |
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ISE @ ise @ MRR2006 |
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678 |
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Author |
Mikhail Mozerov |
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Title |
An Effective Stereo Matching Algorithm with Optimal Path Cost Aggregation |
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2006 |
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28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 617–626 |
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Berlin (Germany) |
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ISE |
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ISE @ ise @ Moz2006 |
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677 |
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Author |
Ivan Huerta; Dani Rowe; Mikhail Mozerov; Jordi Gonzalez |
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Title |
Improving Background Subtraction based on a Casuistry of Colour-Motion Segmentation Problems |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:475–482 |
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Girona (Spain) |
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ISE @ ise @ HRM2007 |
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783 |
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Author |
Ivan Huerta; Dani Rowe; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Efficient Incorporation of Motionless Foreground Objects for Adaptive Background Segmentation |
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Book Chapter |
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2006 |
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IV Conference on Articulated Motion and Deformable Objects (AMDO´06), LNCS 4069: 424–433 |
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Mallorca (Spain) |
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ISE @ ise @ HRG2006a |
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702 |
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Author |
Ivan Huerta; Ariel Amato; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Fusing Edge Cues to Handle Colour Problems in Image Segmentation |
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2008 |
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Articulated Motion and Deformable Objects, 5th International Conference |
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5098 |
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279–288 |
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Port d'Andratx (Mallorca) |
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AMDO |
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ISE |
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ISE @ ise @ HAG2008 |
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973 |
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Author |
Carles Fernandez; Pau Baiget; Xavier Roca; Jordi Gonzalez |
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Title |
Exploiting Natural Language Generation in Scene Interpretation |
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2009 |
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Human–Centric Interfaces for Ambient Intelligence |
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4 |
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71–93 |
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Elsevier Science and Tech |
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ISE @ ise @ FBR2009 |
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1212 |
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