| Records |
| Author |
David Guillamet; Jordi Vitria |
| Title |
Evaluation of distance metrics for recognition based on non-negative matrix factorization |
Type  |
Journal Article |
| Year |
2003 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
24 |
Issue |
9-10 |
Pages |
1599 –1605 |
| Keywords |
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| Abstract |
IF: 0.809 |
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| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ GuV2003b |
Serial |
380 |
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| Author |
David Guillamet; Jordi Vitria; B. Shiele |
| Title |
Introducing a weighted non-negative matrix factorization for image classification |
Type |
Journal Article |
| Year |
2003 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
24 |
Issue |
14 |
Pages |
2447–2454 |
| Keywords |
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| Abstract |
IF: 0.809 |
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| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ GVS2003 |
Serial |
382 |
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| Author |
Judit Martinez; Eva Costa; P. Herreros; F. Javier Sanchez; Ramon Baldrich |
| Title |
A Modular and Scalable Architecture for PC-Based Real-Time Vision Systems |
Type |
Journal Article |
| Year |
2003 |
Publication |
Real–Time Imaging, (IF: 0.512) |
Abbreviated Journal |
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| Volume |
9 |
Issue |
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Pages |
99-112 |
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| Notes |
CIC |
Approved |
no |
| Call Number |
CAT @ cat @ MCH2003b |
Serial |
394 |
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| Author |
Daniel Ponsa; Robert Benavente; Felipe Lumbreras; Judit Martinez; Xavier Roca |
| Title |
Quality control of safety belts by machine vision inspection for real-time production |
Type |
Journal Article |
| Year |
2003 |
Publication |
Optical Engineering (IF: 0.877) |
Abbreviated Journal |
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| Volume |
42 |
Issue |
4 |
Pages |
1114-1120 |
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SPIE |
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| Notes |
ADAS;ISE;CIC |
Approved |
no |
| Call Number |
ADAS @ adas @ PRL2003 |
Serial |
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 |
| Title |
Model Empiric de Simulacio d Ecografia Intravascular |
Type |
Journal Article |
| Year |
2003 |
Publication |
Revista Societat Catalana de Cardiologia, 4(4):42, XIVe Congres de la Societat Catalana de Cardiologia |
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Issue |
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Pages |
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| Address |
Barcelona |
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| Notes |
MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ RMF2003e |
Serial |
412 |
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| Author |
A.F. Sole; Antonio Lopez; G. Sapiro |
| Title |
Crease Enhancement Diffusion |
Type |
Journal Article |
| Year |
2001 |
Publication |
Computer Vision and Image Understanding, 84(2): 241–248 (IF: 1.298) |
Abbreviated Journal |
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Issue |
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Pages |
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| Address |
New York; USA |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SLS2001 |
Serial |
485 |
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| Author |
Debora Gil; Petia Radeva |
| Title |
A Regularized Curvature Flow Designed for a Selective Shape Restoration |
Type |
Journal Article |
| Year |
2004 |
Publication |
IEEE Transactions on Image Processing |
Abbreviated Journal |
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| Volume |
13 |
Issue |
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Pages |
1444–1458 |
| Keywords |
Geometric flows, nonlinear filtering, shape recovery. |
| 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 |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ GiR2004b |
Serial |
491 |
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| Author |
Antonio Lopez; Ernest Valveny; Juan J. Villanueva |
| Title |
Real-time quality control of surgical material packaging by artificial vision |
Type |
Journal Article |
| Year |
2005 |
Publication |
Assembly Automation |
Abbreviated Journal |
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| Volume |
25 |
Issue |
3 |
Pages |
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| Keywords |
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| Abstract |
IF: 0.061) |
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| Notes |
ADAS;DAG |
Approved |
no |
| Call Number |
ADAS @ adas @ LVV2005 |
Serial |
552 |
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| Author |
A. Sanfeliu; Juan J. Villanueva |
| Title |
An approach of visual motion analysis |
Type |
Journal Article |
| Year |
2005 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
26 |
Issue |
3 |
Pages |
355–368 |
| Keywords |
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| Abstract |
IF: 1.138 |
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Approved |
no |
| Call Number |
ISE @ ise @ SaV2005 |
Serial |
561 |
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| Author |
Jaume Amores; Petia Radeva |
| Title |
Registration and Retrieval of Highly Elastic Bodies using Contextual Information |
Type |
Journal Article |
| Year |
2005 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
26 |
Issue |
11 |
Pages |
1720–1731 |
| Keywords |
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| Abstract |
IF: 1.138 |
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| Notes |
ADAS;MILAB |
Approved |
no |
| Call Number |
ADAS @ adas @ AmR2005b |
Serial |
592 |
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| Author |
Oriol Ramos Terrades; Ernest Valveny |
| Title |
A new use of the ridgelets transform for describing linear singularities in images |
Type |
Journal Article |
| Year |
2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
27 |
Issue |
6 |
Pages |
587–596 |
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| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ RaV2006a |
Serial |
635 |
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| Author |
Jaume Amores; N. Sebe; Petia Radeva |
| Title |
Boosting the distance estimation: Application to the K-Nearest Neighbor Classifier |
Type |
Journal Article |
| Year |
2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
27 |
Issue |
3 |
Pages |
201–209 |
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| Notes |
ADAS;MILAB |
Approved |
no |
| Call Number |
ADAS @ adas @ ASR2006 |
Serial |
643 |
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| Author |
Fernando Vilariño; Ludmila I. Kuncheva; Petia Radeva |
| Title |
ROC curves and video analysis optimization in intestinal capsule endoscopy |
Type |
Journal Article |
| Year |
2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
27 |
Issue |
8 |
Pages |
875–881 |
| Keywords |
ROC curves; Classification; Classifiers ensemble; Detection of intestinal contractions; Imbalanced classes; Wireless capsule endoscopy |
| 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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| Area |
800 |
Expedition |
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| Notes |
MILAB;MV;SIAI |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ VKR2006; IAM @ iam @ VKR2006 |
Serial |
647 |
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| Author |
Angel Sappa; David Geronimo; Fadi Dornaika; Antonio Lopez |
| Title |
On-board camera extrinsic parameter estimation |
Type |
Journal Article |
| Year |
2006 |
Publication |
Electronics Letters |
Abbreviated Journal |
EL |
| Volume |
42 |
Issue |
13 |
Pages |
745–746 |
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| Abstract |
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 |
Approved |
no |
| Call Number |
ADAS @ adas @ SGD2006a |
Serial |
655 |
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| Author |
Xavier Otazu; Oriol Pujol |
| Title |
Wavelet based approach to cluster analysis. Application on low dimensional data sets |
Type |
Journal Article |
| Year |
2006 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
27 |
Issue |
14 |
Pages |
1590–1605 |
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| Notes |
MILAB; CIC; HuPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ OtP2006 |
Serial |
658 |
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