| Records |
| 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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800 |
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MILAB;MV;SIAI |
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no |
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BCNPCL @ bcnpcl @ VKR2006; IAM @ iam @ VKR2006 |
Serial |
647 |
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| Author |
Matthias S. Keil; Gabriel Cristobal; Heiko Neumann |
| Title |
Gradient representation and perception in the early visual system – A novel account of Mach band formation |
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| Year |
2006 |
Publication |
Vision Research, 46(17): 2659–2674 |
Abbreviated Journal |
VR |
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no |
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Admin @ si @ KCN2006 |
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649 |
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| Author |
Anonymous |
| Title |
A Low Computational-Cost Method to Fuse IKONOS Images Using the Spectral Response Function of Its Sensors |
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2006 |
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IEEE Transactions on Geoscience and Remote Sensing, 44(6): 1683–1691 |
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CAT @ cat @ GOF2006 |
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650 |
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| Author |
Shigang Yue; F. Claire Rind; Matthias S. Keil; Jorge Cuadri; Richard Stafford |
| Title |
A bio-inspired visual collision detection mechanism for cars: Optimisation of a model of a locust neuron to a novel environment |
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Journal |
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2006 |
Publication |
Neurocomputing 69(13–15): 1591–1598 |
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Admin @ si @ YRK2006 |
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652 |
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| Author |
Carme Julia; Angel Sappa; Felipe Lumbreras; Joan Serrat; Antonio Lopez |
| Title |
Factorization with Missing and Noisy Data |
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Conference Article |
| Year |
2006 |
Publication |
6th International Conference on Computational Science |
Abbreviated Journal |
ICCS´06 |
| Volume |
LNCS 3991 |
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555–562 |
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Reading (United Kingdom) |
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ADAS |
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no |
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ADAS @ adas @ JSL2006b |
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653 |
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| Author |
Angel Sappa; Fadi Dornaika |
| Title |
An Edge-Based Approach to Motion Detection |
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Book Chapter |
| Year |
2006 |
Publication |
6th International Conference on Computational Science (ICCS´06), LNCS 3991:563–570 |
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Reading (United Kingdom) |
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ADAS |
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no |
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ADAS @ adas @ SaD2006 |
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654 |
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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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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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no |
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ADAS @ adas @ SGD2006a |
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655 |
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| Author |
Miquel Ferrer; F. Serratosa; A. Sanfeliu |
| Title |
Synthesis of median spectral graph |
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Book Chapter |
| Year |
2005 |
Publication |
Pattern Recognition and Image Analysis (IbPRIA´05), LNCS, 3523: 139 146 |
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Estoril (Portugal) |
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no |
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Admin @ si @ FSS2005 |
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656 |
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| Author |
Jaume Rodriguez; S. Yacoub; Gemma Sanchez; Josep Llados |
| Title |
Performance Evaluation, Comparison and Combination of Commercial Handwriting Recognition Engines |
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Report |
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2006 |
Publication |
CVC Technical Report #93 |
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CVC (UAB) |
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DAG |
Approved |
no |
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DAG @ dag @ RYS2006 |
Serial |
657 |
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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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MILAB; CIC; HuPBA |
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no |
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BCNPCL @ bcnpcl @ OtP2006 |
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658 |
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| Author |
Xavier Otazu; Maria Vanrell |
| Title |
Several lightness induction effects with a computational multiresolution wavelet framework |
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2006 |
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29th European Conference on Visual Perception (ECVP’06), Perception Suppl s, 32: 56–56 |
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Saint-Petersburg (Russia) |
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CIC |
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no |
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CAT @ cat @ OtV2006 |
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659 |
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| Author |
J. Nuñez; O. Fors; Xavier Otazu; Vicenç Pala; Roman Arbiol; M.T. Merino |
| Title |
A Wavelet-Based Method for the Determination of the Relative Resolution Between Remotely Sensed Images |
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2006 |
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IEEE Transactions on Geoscience and Remote Sensing, 44(9): 2539–2548 |
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CIC |
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no |
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CAT @ cat @ NFO2006 |
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660 |
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| Author |
Maria Alberich-Carramiñana; Guillem Alenya; Juan Andrade; E. Martinez; Carme Torras |
| Title |
Affine Epipolar Direction from Two Views of a Planar Contour |
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2006 |
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Proceedings of the Advanced Concepts for Intelligent Vision Systems Conference, LNCS 4179: 944–955 |
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Antwerp (Belgium) |
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Admin @ si @ AAA2006 |
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661 |
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| Author |
Jordi Gonzalez; Dani Rowe; Juan Andrade; Juan J. Villanueva |
| Title |
Efficient Management of Multiple Agent Tracking Through Observation Handling |
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Miscellaneous |
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2006 |
Publication |
6th IASTED International Conference on Visualization, Imaging and Image Processing (VIIP´06) |
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Palma de Mallorca (Spain) |
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ISE @ ise @ GRA2006 |
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662 |
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| Author |
Michael Villamizar; A. Sanfeliu; Juan Andrade |
| Title |
Computation of Rotation Local Invariant Features using the Integral Image for Real Time Object Detection |
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Miscellaneous |
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2006 |
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18th International Conference on Pattern Recognition, 81–85 |
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Hong Kong |
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Admin @ si @ VSA2006a |
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663 |
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