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Author |
Bhaskar Chakraborty; Ognjen Rudovic; Jordi Gonzalez |
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Title |
View-Invariant Human-Body Detection with Extension to Human Action Recognition using Component-Wise HMM of Body Parts |
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Conference Article |
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2008 |
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8th IEEE International Conference on Automatic Face and Gesture Recognition |
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Amsterdam; The Netherlands |
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ISE |
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ISE @ ise @ CRG2008 |
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1113 |
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Author |
Miquel Ferrer; Ernest Valveny; F. Serratosa |
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Title |
Median graph: A new exact algorithm using a distance based on the maximum common subgraph |
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Journal Article |
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Year |
2009 |
Publication |
Pattern Recognition Letters |
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PRL |
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30 |
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5 |
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579–588 |
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Median graphs have been presented as a useful tool for capturing the essential information of a set of graphs. Nevertheless, computation of optimal solutions is a very hard problem. In this work we present a new and more efficient optimal algorithm for the median graph computation. With the use of a particular cost function that permits the definition of the graph edit distance in terms of the maximum common subgraph, and a prediction function in the backtracking algorithm, we reduce the size of the search space, avoiding the evaluation of a great amount of states and still obtaining the exact median. We present a set of experiments comparing our new algorithm against the previous existing exact algorithm using synthetic data. In addition, we present the first application of the exact median graph computation to real data and we compare the results against an approximate algorithm based on genetic search. These experimental results show that our algorithm outperforms the previous existing exact algorithm and in addition show the potential applicability of the exact solutions to real problems. |
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Elsevier Science Inc. |
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0167-8655 |
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DAG @ dag @ FVS2009a |
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1114 |
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Author |
Fadi Dornaika; Angel Sappa |
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Title |
Instantaneous 3D motion from image derivatives using the Least Trimmed Square Regression |
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Journal Article |
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Year |
2009 |
Publication |
Pattern Recognition Letters |
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PRL |
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30 |
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5 |
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535–543 |
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This paper presents a new technique to the instantaneous 3D motion estimation. The main contributions are as follows. First, we show that the 3D camera or scene velocity can be retrieved from image derivatives only assuming that the scene contains a dominant plane. Second, we propose a new robust algorithm that simultaneously provides the Least Trimmed Square solution and the percentage of inliers-the non-contaminated data. Experiments on both synthetic and real image sequences demonstrated the effectiveness of the developed method. Those experiments show that the new robust approach can outperform classical robust schemes. |
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Elsevier Science Inc. |
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0167-8655 |
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ADAS |
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ADAS @ adas @ DoS2009a |
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1115 |
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Author |
Xavier Baro; Sergio Escalera; Jordi Vitria; Oriol Pujol; Petia Radeva |
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Title |
Traffic Sign Recognition Using Evolutionary Adaboost Detection and Forest-ECOC Classification |
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Journal Article |
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Year |
2009 |
Publication |
IEEE Transactions on Intelligent Transportation Systems |
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TITS |
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10 |
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1 |
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113–126 |
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The high variability of sign appearance in uncontrolled environments has made the detection and classification of road signs a challenging problem in computer vision. In this paper, we introduce a novel approach for the detection and classification of traffic signs. Detection is based on a boosted detectors cascade, trained with a novel evolutionary version of Adaboost, which allows the use of large feature spaces. Classification is defined as a multiclass categorization problem. A battery of classifiers is trained to split classes in an Error-Correcting Output Code (ECOC) framework. We propose an ECOC design through a forest of optimal tree structures that are embedded in the ECOC matrix. The novel system offers high performance and better accuracy than the state-of-the-art strategies and is potentially better in terms of noise, affine deformation, partial occlusions, and reduced illumination. |
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1524-9050 |
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OR;MILAB;HuPBA;MV |
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BCNPCL @ bcnpcl @ BEV2008 |
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1116 |
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Author |
Enric Marti; J. Rocarias; A. Sanchez; Petia Radeva; Ricardo Toledo; Jordi Vitria |
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Title |
Caronte: una propuesta de entorno de gestion documental para asignaturas de Ingenieria Informatica |
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Miscellaneous |
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2006 |
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IV Congreso Internacional Docencia Universitaria e Innovacion (CIDUI´06) |
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Barcelona |
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IAM;RV;OR;MILAB;ADAS;MV |
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BCNPCL @ bcnpcl @ MRS2006a |
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1122 |
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Author |
Enric Marti; Carme Julia; Debora Gil |
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Title |
Una experiencia de PBL en la docencia de la asignatura de Graficos por Computador en Ingenieria Informatica |
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Miscellaneous |
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2006 |
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IV Congreso Internacional Docencia Universitaria e Innovacion (CIDUI´06) |
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Barcelona |
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IAM;ADAS; |
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IAM @ iam @ MJG2006b |
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1123 |
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Author |
Enric Marti; J. Rocarias; A. Sanchez; Petia Radeva; Ricardo Toledo; Jordi Vitria |
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Title |
Caronte: un gestor documental para asignaturas del EEES |
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Miscellaneous |
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2006 |
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III Jornades de Innovacio Docent |
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UAB, Bellaterra |
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IAM;RV;OR;MILAB;ADAS;MV |
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no |
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BCNPCL @ bcnpcl @ MRS2006b |
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1124 |
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Author |
Enric Marti; J. Rocarias; Petia Radeva; H. Tizon; Jordi Vitria |
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Title |
Caronte. Un gestor documental para asignaturas de universidad en el EEES |
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Miscellaneous |
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2007 |
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Desarrollo de gestion de grupos, encuestas y autoevaluacion, MoodleMoot 2007 |
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IAM;OR;MILAB;MV |
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no |
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BCNPCL @ bcnpcl @ MRR2007b |
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1128 |
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Author |
Josep Llados; Dimosthenis Karatzas; Joan Mas; Gemma Sanchez |
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Title |
A Generic Architecture for the Conversion of Document Collections into Semantically Annotated Digital Archives |
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2008 |
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Journal of Universal Computer Science |
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14 |
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18 |
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2912–2935 |
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Median Graph, Graph Embedding, Graph Matching, Structural Pattern Recognition |
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DAG |
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no |
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DAG @ dag @ LKM2008 |
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1142 |
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Author |
Niki Aifanti; Angel Sappa; N. Grammalidis; Sotiris Malassiotis |
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Title |
Advances in Tracking and Recognition of Human Motion |
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2009 |
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Encyclopedia of Information Science and Technology |
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I |
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2nd edition |
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65–71 |
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ADAS @ adas @ ASG2009 |
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1143 |
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Author |
Arnau Ramisa; Adriana Tapus; Ramon Lopez de Mantaras; Ricardo Toledo |
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Title |
Mobile Robot Localization using Panoramic Vision and Combination of Feature Region Detectors |
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Conference Article |
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2008 |
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IEEE International Conference on Robotics and Automation, |
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538–543 |
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Pasadena; CA; USA |
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ICRA |
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RV;ADAS |
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Admin @ si @ RTL2008 |
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1144 |
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Author |
Francesco Ciompi |
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Title |
ECOC-based Plaque Classification using In-vivo and Exvivo Intravascular Ultrasound Data |
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Miscellaneous |
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2008 |
Publication |
CVC Technical Report #125 |
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Bellaterra (Spain) |
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Admin @ si @ Cio2008 |
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1145 |
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Author |
Carles Fernandez; Jordi Gonzalez |
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Title |
A Multilingually-Extensible Module for Natural Language Generation |
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2008 |
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CVC Technical Report #120 |
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Barcelona, Spain |
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ISE @ ise @ FeG2008 |
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1146 |
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Author |
Ognjen Rudovic; Jordi Gonzalez |
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Title |
Building Temporal Templates for Human Behaviour Classification |
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2008 |
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CVC Technical Report #127 |
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Barcelona, Spain |
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ISE @ ise @ RuG 2008 |
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1147 |
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Author |
Marco Pedersoli |
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Title |
A Multiresolution Cascade for Human Detection |
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2008 |
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CVC Technical Report #126 |
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Barcelona, Spain |
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ISE |
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Admin @ si @ Ped2008 |
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1148 |
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