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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 |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2003 |
Publication |
Pattern Recognition Letters |
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PRL |
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Volume |
24 |
Issue |
9-10 |
Pages |
1599 –1605 |
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Abstract |
IF: 0.809 |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ GuV2003b |
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380 |
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Author |
David Guillamet; Jordi Vitria; B. Shiele |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Introducing a weighted non-negative matrix factorization for image classification |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2003 |
Publication |
Pattern Recognition Letters |
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PRL |
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24 |
Issue |
14 |
Pages |
2447–2454 |
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IF: 0.809 |
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OR;MV |
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no |
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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 |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
A Modular and Scalable Architecture for PC-Based Real-Time Vision Systems |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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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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CIC |
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no |
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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 |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Quality control of safety belts by machine vision inspection for real-time production |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2003 |
Publication |
Optical Engineering (IF: 0.877) |
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42 |
Issue |
4 |
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1114-1120 |
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ADAS;ISE;CIC |
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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 |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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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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no |
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BCNPCL @ bcnpcl @ RMF2003e |
Serial |
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 |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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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 |
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no |
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Call Number |
ADAS @ adas @ SLS2001 |
Serial |
485 |
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Author |
Debora Gil; Petia Radeva |
![download PDF file pdf](img/file_PDF.gif)
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Title |
A Regularized Curvature Flow Designed for a Selective Shape Restoration |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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Year |
2004 |
Publication |
IEEE Transactions on Image Processing |
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Volume |
13 |
Issue |
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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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Notes |
IAM;MILAB |
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no |
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Call Number |
BCNPCL @ bcnpcl @ GiR2004b |
Serial |
491 |
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Author |
Antonio Lopez; Ernest Valveny; Juan J. Villanueva |
![goto web page url](img/www.gif)
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Title |
Real-time quality control of surgical material packaging by artificial vision |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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Year |
2005 |
Publication |
Assembly Automation |
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Volume |
25 |
Issue |
3 |
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Abstract |
IF: 0.061) |
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ADAS;DAG |
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no |
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Call Number |
ADAS @ adas @ LVV2005 |
Serial |
552 |
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Author |
A. Sanfeliu; Juan J. Villanueva |
![goto web page url](img/www.gif)
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Title |
An approach of visual motion analysis |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2005 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
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Volume |
26 |
Issue |
3 |
Pages |
355–368 |
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Abstract |
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 |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2005 |
Publication |
Pattern Recognition Letters |
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PRL |
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Volume |
26 |
Issue |
11 |
Pages |
1720–1731 |
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IF: 1.138 |
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ADAS;MILAB |
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no |
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ADAS @ adas @ AmR2005b |
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592 |
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Author |
Oriol Ramos Terrades; Ernest Valveny |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
A new use of the ridgelets transform for describing linear singularities in images |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
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Volume |
27 |
Issue |
6 |
Pages |
587–596 |
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DAG |
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DAG @ dag @ RaV2006a |
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635 |
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Author |
Jaume Amores; N. Sebe; Petia Radeva |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Boosting the distance estimation: Application to the K-Nearest Neighbor Classifier |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
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Volume |
27 |
Issue |
3 |
Pages |
201–209 |
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ADAS;MILAB |
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ADAS @ adas @ ASR2006 |
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643 |
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Author |
Fernando Vilariño; Ludmila I. Kuncheva; Petia Radeva |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
ROC curves and video analysis optimization in intestinal capsule endoscopy |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
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27 |
Issue |
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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Abstract |
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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MILAB;MV;SIAI |
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no |
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BCNPCL @ bcnpcl @ VKR2006; IAM @ iam @ VKR2006 |
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647 |
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Author |
Angel Sappa; David Geronimo; Fadi Dornaika; Antonio Lopez |
![download PDF file pdf](img/file_PDF.gif)
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Title |
On-board camera extrinsic parameter estimation |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2006 |
Publication |
Electronics Letters |
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EL |
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42 |
Issue |
13 |
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745–746 |
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An efficient technique for real-time estimation of camera extrinsic parameters is presented. It is intended to be used on on-board vision systems for driving assistance applications. The proposed technique is based on the use of a commercial stereo vision system that does not need any visual feature extraction. |
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IEE |
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ADAS |
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ADAS @ adas @ SGD2006a |
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655 |
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Author |
Xavier Otazu; Oriol Pujol |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Wavelet based approach to cluster analysis. Application on low dimensional data sets |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2006 |
Publication |
Pattern Recognition Letters |
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PRL |
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27 |
Issue |
14 |
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1590–1605 |
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MILAB; CIC; HuPBA |
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BCNPCL @ bcnpcl @ OtP2006 |
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658 |
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