| Records |
| Author |
Daniel Ponsa; Xavier Roca |
| Title |
A Novel Approach to Generate Multiple Shape Models. |
Type |
Miscellaneous |
| Year |
2002 |
Publication |
Articulated Motion and Deformable Objects, LNCS 2492: 80–91, Springer Verlag. |
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ADAS;ISE |
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ADAS @ adas @ PoR2002a |
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283 |
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| Author |
Daniel Ponsa; Xavier Roca |
| Title |
Unsupervised Parameterisation of Gaussian Mixture Models |
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Miscellaneous |
| Year |
2002 |
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ADAS;ISE |
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no |
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ADAS @ adas @ PoR2002c |
Serial |
313 |
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| Author |
Daniel Ponsa; Xavier Roca |
| Title |
Multiple Model Approach to Deformable Shape Tracking |
Type |
Miscellaneous |
| Year |
2003 |
Publication |
In Pattern Recognition and Image Analysis, Lecture Notes in Computer Science 2652:782–792 |
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Springer-Verlag |
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ADAS;ISE |
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no |
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ADAS @ adas @ PoR2003 |
Serial |
397 |
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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) |
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| Volume |
42 |
Issue |
4 |
Pages |
1114-1120 |
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SPIE |
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ADAS;ISE;CIC |
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ADAS @ adas @ PRL2003 |
Serial |
399 |
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| Author |
J. Pladellorens; Joan Serrat; A. Castell; M.J. Yzuel |
| Title |
Using mathematical morphology to determine left ventricular contours. |
Type |
Journal |
| Year |
1993 |
Publication |
Physics in Medicine and Biology. |
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37 |
Issue |
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Pages |
1877––1894 |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ PSC1993 |
Serial |
146 |
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| Author |
Daniel Ponsa; A.F. Sole; Antonio Lopez; Cristina Cañero; Petia Radeva; Jordi Vitria |
| Title |
Regularized EM |
Type |
Miscellaneous |
| Year |
1999 |
Publication |
Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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Bilbao |
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invisible;ADAS;OR;MILAB;MV |
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no |
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ADAS @ adas @ PSL1999 |
Serial |
4 |
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| Author |
Daniel Ponsa; A.F. Sole; Antonio Lopez; Cristina Cañero; Petia Radeva; Jordi Vitria |
| Title |
Regularized EM. |
Type |
Miscellaneous |
| Year |
2000 |
Publication |
Pattern Recognition and Applications, IOS Press, 69–77. |
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invisible;ADAS;OR;MILAB;MV |
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no |
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ADAS @ adas @ PSL2000 |
Serial |
336 |
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| Author |
Daniel Ponsa; Joan Serrat; Antonio Lopez |
| Title |
On-board image-based vehicle detection and tracking |
Type |
Journal Article |
| Year |
2011 |
Publication |
Transactions of the Institute of Measurement and Control |
Abbreviated Journal |
TIM |
| Volume |
33 |
Issue |
7 |
Pages |
783-805 |
| Keywords |
vehicle detection |
| Abstract |
In this paper we present a computer vision system for daytime vehicle detection and localization, an essential step in the development of several types of advanced driver assistance systems. It has a reduced processing time and high accuracy thanks to the combination of vehicle detection with lane-markings estimation and temporal tracking of both vehicles and lane markings. Concerning vehicle detection, our main contribution is a frame scanning process that inspects images according to the geometry of image formation, and with an Adaboost-based detector that is robust to the variability in the different vehicle types (car, van, truck) and lighting conditions. In addition, we propose a new method to estimate the most likely three-dimensional locations of vehicles on the road ahead. With regards to the lane-markings estimation component, we have two main contributions. First, we employ a different image feature to the other commonly used edges: we use ridges, which are better suited to this problem. Second, we adapt RANSAC, a generic robust estimation method, to fit a parametric model of a pair of lane markings to the image features. We qualitatively assess our vehicle detection system in sequences captured on several road types and under very different lighting conditions. The processed videos are available on a web page associated with this paper. A quantitative evaluation of the system has shown quite accurate results (a low number of false positives and negatives) at a reasonable computation time. |
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ADAS |
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no |
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ADAS @ adas @ PSL2011 |
Serial |
1413 |
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| Author |
A. Pujol; A.F. Sole; Daniel Ponsa; Javier Varona; Juan J. Villanueva |
| Title |
Satellite Image Segmentation Trough Rotational Invariant Feature Eigenvector Projection. |
Type |
Miscellaneous |
| Year |
1999 |
Publication |
Machine Vision and Advanced Image Processing in Remote Sensing, Springer, 317–327. |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ PSP1999 |
Serial |
36 |
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| Author |
A. Pujol; Jordi Vitria; Felipe Lumbreras; Juan J. Villanueva |
| Title |
Topological principal component analysis for face encoding and recognition |
Type |
Journal Article |
| Year |
2001 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
22 |
Issue |
6-7 |
Pages |
769–776 |
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IF: 0.552 |
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ADAS;OR;MV |
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no |
| Call Number |
ADAS @ adas @ PVL2001 |
Serial |
155 |
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| Author |
A. Pujol; Javier Varona; Joan Serrat |
| Title |
A machine vision system for the inspection of industrial sieves. |
Type |
Miscellaneous |
| Year |
1997 |
Publication |
VII SNRFAI. |
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ADAS |
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no |
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ADAS @ adas @ PVS1997 |
Serial |
33 |
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| Author |
J. Pladellorens; M.J. Yzuel; J. Castell; Joan Serrat |
| Title |
Calculo automatico del volumen del ventriculo izquierdo. Comparacion con expertos. |
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Journal |
| Year |
1993 |
Publication |
Optica Pura y Aplicada. |
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26 |
Issue |
3 |
Pages |
685–691 |
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ADAS |
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no |
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ADAS @ adas @ PYC1993 |
Serial |
149 |
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| Author |
Petia Radeva; Joan Serrat |
| Title |
Rubber Snake: Implementation on Signed Distance Potential. |
Type |
Conference Article |
| Year |
1993 |
Publication |
Vision Conference |
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187-194 |
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Zurich, Switzerland. |
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SWISS |
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ADAS;MILAB |
Approved |
no |
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ADAS @ adas @ RaS1993 |
Serial |
170 |
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| Author |
Gemma Roig; Xavier Boix; R. de Nijs; Sebastian Ramos; K. Kühnlenz; Luc Van Gool |
| Title |
Active MAP Inference in CRFs for Efficient Semantic Segmentation |
Type |
Conference Article |
| Year |
2013 |
Publication |
15th IEEE International Conference on Computer Vision |
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Pages |
2312 - 2319 |
| Keywords |
Semantic Segmentation |
| Abstract |
Most MAP inference algorithms for CRFs optimize an energy function knowing all the potentials. In this paper, we focus on CRFs where the computational cost of instantiating the potentials is orders of magnitude higher than MAP inference. This is often the case in semantic image segmentation, where most potentials are instantiated by slow classifiers fed with costly features. We introduce Active MAP inference 1) to on-the-fly select a subset of potentials to be instantiated in the energy function, leaving the rest of the parameters of the potentials unknown, and 2) to estimate the MAP labeling from such incomplete energy function. Results for semantic segmentation benchmarks, namely PASCAL VOC 2010 [5] and MSRC-21 [19], show that Active MAP inference achieves similar levels of accuracy but with major efficiency gains. |
| Address |
Sydney; Australia; December 2013 |
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1550-5499 |
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ICCV |
| Notes |
ADAS; 600.057 |
Approved |
no |
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ADAS @ adas @ RBN2013 |
Serial |
2377 |
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| Author |
Mohammad Rouhani; Angel Sappa |
| Title |
A Novel Approach to Geometric Fitting of Implicit Quadrics |
Type |
Conference Article |
| Year |
2009 |
Publication |
8th International Conference on Advanced Concepts for Intelligent Vision Systems |
Abbreviated Journal |
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| Volume |
5807 |
Issue |
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Pages |
121–132 |
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| Abstract |
This paper presents a novel approach for estimating the geometric distance from a given point to the corresponding implicit quadric curve/surface. The proposed estimation is based on the height of a tetrahedron, which is used as a coarse but reliable estimation of the real distance. The estimated distance is then used for finding the best set of quadric parameters, by means of the Levenberg-Marquardt algorithm, which is a common framework in other geometric fitting approaches. Comparisons of the proposed approach with previous ones are provided to show both improvements in CPU time as well as in the accuracy of the obtained results. |
| Address |
Bordeaux, France |
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Springer Berlin Heidelberg |
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LNCS |
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0302-9743 |
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978-3-642-04696-4 |
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ACIVS |
| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ RoS2009 |
Serial |
1194 |
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