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Author |
M. Bressan; Jordi Vitria |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Nonparametric Discriminant Analysis and Nearest Neighbor Classification |
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2003 |
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Pattern Recognition Letters |
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24 |
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15 |
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2743–2749 |
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IF: 0.809 |
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BCNPCL @ bcnpcl @ BrV2003b |
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367 |
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Author |
Cristina Cañero; Petia Radeva |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Vesselness enhancement diffusion |
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2003 |
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Pattern Recognition Letters |
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24 |
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16 |
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3141–3151 |
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IF: 0.809 |
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BCNPCL @ bcnpcl @ CaR2003 |
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371 |
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Author |
David Guillamet; Jordi Vitria |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Evaluation of distance metrics for recognition based on non-negative matrix factorization |
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Journal Article |
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Year |
2003 |
Publication |
Pattern Recognition Letters |
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PRL |
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24 |
Issue |
9-10 |
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1599 –1605 |
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IF: 0.809 |
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BCNPCL @ bcnpcl @ GuV2003b |
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380 |
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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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Journal Article |
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Year |
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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BCNPCL @ bcnpcl @ GVS2003 |
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382 |
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Author |
Judit Martinez; Eva Costa; P. Herreros; F. Javier Sanchez; Ramon Baldrich |
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Title |
A Modular and Scalable Architecture for PC-Based Real-Time Vision Systems |
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Journal Article |
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2003 |
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Real–Time Imaging, (IF: 0.512) |
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9 |
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99-112 |
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CAT @ cat @ MCH2003b |
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394 |
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Author |
Daniel Ponsa; Robert Benavente; Felipe Lumbreras; Judit Martinez; Xavier Roca |
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Title |
Quality control of safety belts by machine vision inspection for real-time production |
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Journal Article |
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Year |
2003 |
Publication |
Optical Engineering (IF: 0.877) |
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42 |
Issue |
4 |
Pages |
1114-1120 |
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ADAS @ adas @ PRL2003 |
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399 |
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Author |
O. Rodriguez; J. Mauri; E Fernandez-Nofrerias; C. Garcia; R. Villuendas; A. Tovar; A. Duran; V. Valle; Misael Rosales; Petia Radeva |
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Title |
Model Empiric de Simulacio d Ecografia Intravascular |
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Journal Article |
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2003 |
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Revista Societat Catalana de Cardiologia, 4(4):42, XIVe Congres de la Societat Catalana de Cardiologia |
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Barcelona |
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MILAB |
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BCNPCL @ bcnpcl @ RMF2003e |
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412 |
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Author |
A.F. Sole; Antonio Lopez; G. Sapiro |
![download PDF file pdf](img/file_PDF.gif)
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Title |
Crease Enhancement Diffusion |
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Journal Article |
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Year |
2001 |
Publication |
Computer Vision and Image Understanding, 84(2): 241–248 (IF: 1.298) |
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New York; USA |
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ADAS @ adas @ SLS2001 |
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485 |
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Author |
Debora Gil; Petia Radeva |
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Title |
A Regularized Curvature Flow Designed for a Selective Shape Restoration |
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Journal Article |
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Year |
2004 |
Publication |
IEEE Transactions on Image Processing |
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13 |
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Pages |
1444–1458 |
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Keywords |
Geometric flows, nonlinear filtering, shape recovery. |
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Abstract |
Among all filtering techniques, those based exclu- sively on image level sets (geometric flows) have proven to be the less sensitive to the nature of noise and the most contrast preserving. A common feature to existent curvature flows is that they penalize high curvature, regardless of the curve regularity. This constitutes a major drawback since curvature extreme values are standard descriptors of the contour geometry. We argue that an operator designed with shape recovery purposes should include a term penalizing irregularity in the curvature rather than its magnitude. To this purpose, we present a novel geometric flow that includes a function that measures the degree of local irregularity present in the curve. A main advantage is that it achieves non-trivial steady states representing a smooth model of level curves in a noisy image. Performance of our approach is compared to classical filtering techniques in terms of quality in the restored image/shape and asymptotic behavior. We empirically prove that our approach is the technique that achieves the best compromise between image quality and evolution stabilization. |
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IAM;MILAB |
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BCNPCL @ bcnpcl @ GiR2004b |
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491 |
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Author |
Antonio Lopez; Ernest Valveny; Juan J. Villanueva |
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Title |
Real-time quality control of surgical material packaging by artificial vision |
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2005 |
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Assembly Automation |
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25 |
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3 |
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Abstract |
IF: 0.061) |
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ADAS @ adas @ LVV2005 |
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552 |
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Author |
A. Sanfeliu; Juan J. Villanueva |
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Title |
An approach of visual motion analysis |
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Journal Article |
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Year |
2005 |
Publication |
Pattern Recognition Letters |
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PRL |
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Volume |
26 |
Issue |
3 |
Pages |
355–368 |
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IF: 1.138 |
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ISE @ ise @ SaV2005 |
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561 |
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Author |
Jaume Amores; Petia Radeva |
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Title |
Registration and Retrieval of Highly Elastic Bodies using Contextual Information |
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Journal Article |
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2005 |
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Pattern Recognition Letters |
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PRL |
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26 |
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11 |
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1720–1731 |
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IF: 1.138 |
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ADAS @ adas @ AmR2005b |
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592 |
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Author |
Oriol Ramos Terrades; Ernest Valveny |
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Title |
A new use of the ridgelets transform for describing linear singularities in images |
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2006 |
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Pattern Recognition Letters |
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PRL |
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27 |
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6 |
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587–596 |
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DAG @ dag @ RaV2006a |
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635 |
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Author |
Jaume Amores; N. Sebe; Petia Radeva |
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Title |
Boosting the distance estimation: Application to the K-Nearest Neighbor Classifier |
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2006 |
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Pattern Recognition Letters |
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27 |
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3 |
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201–209 |
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ADAS @ adas @ ASR2006 |
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643 |
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Author |
Fernando Vilariño; Ludmila I. Kuncheva; Petia Radeva |
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Title |
ROC curves and video analysis optimization in intestinal capsule endoscopy |
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Journal Article |
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2006 |
Publication |
Pattern Recognition Letters |
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PRL |
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27 |
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8 |
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875–881 |
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ROC curves; Classification; Classifiers ensemble; Detection of intestinal contractions; Imbalanced classes; Wireless capsule endoscopy |
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Wireless capsule endoscopy involves inspection of hours of video material by a highly qualified professional. Time episodes corresponding to intestinal contractions, which are of interest to the physician constitute about 1% of the video. The problem is to label automatically time episodes containing contractions so that only a fraction of the video needs inspection. As the classes of contraction and non-contraction images in the video are largely imbalanced, ROC curves are used to optimize the trade-off between false positive and false negative rates. Classifier ensemble methods and simple classifiers were examined. Our results reinforce the claims from recent literature that classifier ensemble methods specifically designed for imbalanced problems have substantial advantages over simple classifiers and standard classifier ensembles. By using ROC curves with the bagging ensemble method the inspection time can be drastically reduced at the expense of a small fraction of missed contractions. |
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800 |
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BCNPCL @ bcnpcl @ VKR2006; IAM @ iam @ VKR2006 |
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647 |
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