| Records |
| Author |
Jordi Gonzalez |
| Title |
Human Sequence Evaluation: the Key-frame Approach |
Type |
Book Whole |
| Year |
2004 |
Publication |
PhD Thesis, Universitat Autonoma de Barcelona-CVC |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
Ph.D. thesis |
| Publisher |
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Place of Publication |
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Editor  |
Xavier Roca;Javier Varona |
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Approved |
no |
| Call Number |
ISE @ ise @ Gon2004 |
Serial |
362 |
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| Author |
Ernest Valveny; Philippe Dosch |
| Title |
Performance Evaluation of Symbol Recognition |
Type |
Book Chapter |
| Year |
2004 |
Publication |
Document Analysis Systems |
Abbreviated Journal |
LNCS |
| Volume |
3163 |
Issue |
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Pages |
354–365 |
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| Abstract |
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| Address |
Springer-Verlag |
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Editor |
S. Marinai, A. Dengel (Eds.), |
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ISBN |
3-540-23060-2 |
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| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ VaD2004a |
Serial |
502 |
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| Author |
Oriol Pujol |
| Title |
A semi-Supervised Statistical Framework and Generative Snakes for IVUS Analysis |
Type |
Book Whole |
| Year |
2004 |
Publication |
PhD Thesis, Universitat Autonoma de Barcelona-CVC |
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| Address |
CVC (UAB), Bellaterra |
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Thesis |
Ph.D. thesis |
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Place of Publication |
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Editor |
Petia Radeva |
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| Notes |
HuPBA;MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ Puj2004 |
Serial |
512 |
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| Author |
Angel Sappa; Niki Aifanti; N. Grammalidis; Sotiris Malassiotis |
| Title |
Advances in Vision-Based Human Body Modeling |
Type |
Book Chapter |
| Year |
2004 |
Publication |
3D Modeling & Animation: Systhesis and Analysis Techniques for the Human Body |
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| Volume |
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Issue |
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Pages |
1-26 |
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Editor |
N. Sarris and M. Strintzis. |
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ISBN |
1-59140-299-9 |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SAG2004a |
Serial |
458 |
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| Author |
David Guillamet |
| Title |
Statistical Local Appearance Models for Object Recognition |
Type |
Book Whole |
| Year |
2004 |
Publication |
PhD Thesis, Universitat Autonoma de Barcelona-CVC |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
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| Address |
Bellaterra |
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Thesis |
Ph.D. thesis |
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Place of Publication |
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Editor |
Jordi Vitria |
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Approved |
no |
| Call Number |
Admin @ si @ Gui2004 |
Serial |
444 |
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| Author |
Debora Gil |
| Title |
Geometric Differential Operators for Shape Modelling |
Type |
Book Whole |
| Year |
2004 |
Publication |
PhD Thesis, Universitat Autonoma de Barcelona-CVC |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
Medical imaging feeds research in many computer vision and image processing fields: image filtering, segmentation, shape recovery, registration, retrieval and pattern matching. Because of their low contrast changes and large variety of artifacts and noise, medical imaging processing techniques relying on an analysis of the geometry of image level sets rather than on intensity values result in more robust treatment. From the starting point of treatment of intravascular images, this PhD thesis ad- dresses the design of differential image operators based on geometric principles for a robust shape modelling and restoration. Among all fields applying shape recovery, we approach filtering and segmentation of image objects. For a successful use in real images, the segmentation process should go through three stages: noise removing, shape modelling and shape recovery. This PhD addresses all three topics, but for the sake of algorithms as automated as possible, techniques for image processing will be designed to satisfy three main principles: a) convergence of the iterative schemes to non-trivial states avoiding image degeneration to a constant image and representing smooth models of the originals; b) smooth asymptotic behav- ior ensuring stabilization of the iterative process; c) fixed parameter values ensuring equal (domain free) performance of the algorithms whatever initial images/shapes. Our geometric approach to the generic equations that model the different processes approached enables defining techniques satisfying all the former requirements. First, we introduce a new curvature-based geometric flow for image filtering achieving a good compromise between noise removing and resemblance to original images. Sec- ond, we describe a new family of diffusion operators that restrict their scope to image level curves and serve to restore smooth closed models from unconnected sets of points. Finally, we design a regularization of snake (distance) maps that ensures its smooth convergence towards any closed shape. Experiments show that performance of the techniques proposed overpasses that of state-of-the-art algorithms. |
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Thesis |
Ph.D. thesis |
| Publisher |
Ediciones Graficas Rey |
Place of Publication |
Barcelona (Spain) |
Editor |
Jordi Saludes i Closa;Petia Radeva |
| Language |
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Edition |
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ISBN |
84-933652-0-3 |
Medium |
prit |
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| Notes |
IAM; |
Approved |
no |
| Call Number |
IAM @ iam @ GIL2004 |
Serial |
1517 |
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| Author |
Fernando Vilariño; Debora Gil; Petia Radeva |
| Title |
A Novel FLDA Formulation for Numerical Stability Analysis |
Type |
Book Chapter |
| Year |
2004 |
Publication |
Recent Advances in Artificial Intelligence Research and Development |
Abbreviated Journal |
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| Volume |
113 |
Issue |
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Pages |
77-84 |
| Keywords |
Supervised Learning; Linear Discriminant Analysis; Numerical Stability; Computer Vision |
| Abstract |
Fisher Linear Discriminant Analysis (FLDA) is one of the most popular techniques used in classification applying dimensional reduction. The numerical scheme involves the inversion of the within-class scatter matrix, which makes FLDA potentially ill-conditioned when it becomes singular. In this paper we present a novel explicit formulation of FLDA in terms of the eccentricity ratio and eigenvector orientations of the within-class scatter matrix. An analysis of this function will characterize those situations where FLDA response is not reliable because of numerical instability. This can solve common situations of poor classification performance in computer vision. |
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| Publisher |
IOS Press |
Place of Publication |
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Editor |
J. Vitrià, P. Radeva and I. Aguiló |
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ISBN |
978-1-58603-466-5 |
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| Notes |
MV;IAM;MILAB;SIAI |
Approved |
no |
| Call Number |
IAM @ iam @ VGR2004 |
Serial |
1663 |
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| Author |
Debora Gil; Petia Radeva |
| Title |
Inhibition of False Landmarks |
Type |
Book Chapter |
| Year |
2004 |
Publication |
Recent Advances in Artificial Intelligence Research and Development |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
233-244 |
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| Abstract |
We argue that a corner detector should be based on the degree of continuity of the tangent vector to the image level sets, work on the image domain and need no assumptions on neither the image local structure nor the particular geometry of the corner/junction. An operator measuring the degree of differentiability of the projection matrix on the image gradient fulfills the above requirements. Its high sensitivity to changes in vector directions makes it suitable for landmark location in real images prone to need smoothing to reduce the impact of noise. Because using smoothing kernels leads to corner misplacement, we suggest an alternative fake response remover based on the receptive field inhibition of spurious details. The combination of both orientation discontinuity detection and noise inhibition produce our Inhibition Orientation Energy (IOE) landmark locator. |
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| Publisher |
IOS Press |
Place of Publication |
Barcelona (Spain) |
Editor |
al, J.V. et |
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| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ GiR2004a |
Serial |
1533 |
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| Author |
Robert Benavente; Maria Vanrell |
| Title |
Fuzzy Colour Naming Based on Sigmoid Membership Functions. |
Type |
Miscellaneous |
| Year |
2004 |
Publication |
CGIV 2004 Second European Conference on Colour in Graphics, Imaging and Vision, 135:139 |
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| Address |
Aachen (Germany) |
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| Notes |
CIC |
Approved |
no |
| Call Number |
CAT @ cat @ BeV2004 |
Serial |
441 |
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| Author |
M. Bressan; David Guillamet; Jordi Vitria |
| Title |
Multiclass Object Recognition using Class-Conditional Independent Component Analisis |
Type |
Journal |
| Year |
2004 |
Publication |
Cybernetics and Systems, 35/1:35–61 (IF: 0.768) |
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| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ BGV2004 |
Serial |
442 |
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| Author |
Josep Llados; Gemma Sanchez |
| Title |
Graph Matching vs. Graph Parsing in Graphics Recognition: A Combined Approach |
Type |
Journal |
| Year |
2004 |
Publication |
International Journal of Pattern Recognition and Artificial Intelligence |
Abbreviated Journal |
IJPRAI |
| Volume |
18 |
Issue |
3 |
Pages |
455–473 |
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| Notes |
DAG; IF: 0.588 |
Approved |
no |
| Call Number |
DAG @ dag @ LlS2004 |
Serial |
445 |
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| Author |
David Masip; Jordi Vitria |
| Title |
Real Time Face Detection and Verification for Uncontrolled Environments |
Type |
Miscellaneous |
| Year |
2004 |
Publication |
Second COST 275 Workshop Biometrics on the Internet: Fundamentals, Advances and Applications, 55–58. |
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Vigo |
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OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ MaV2004a |
Serial |
446 |
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| Author |
David Masip; Jordi Vitria |
| Title |
Object Recognition using Boosted Adaptive Features. |
Type |
Miscellaneous |
| Year |
2004 |
Publication |
ECOVISION Early Cognitive Vision Workshop |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ MaV2004b |
Serial |
447 |
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| Author |
David Masip; M. Bressan; Jordi Vitria |
| Title |
Classifier Combination Applied to Real Time Face Detection and Classification |
Type |
Miscellaneous |
| Year |
2004 |
Publication |
AVR2004 |
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Barcelona |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ MBV2004a |
Serial |
448 |
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| Author |
David Masip; Jordi Vitria |
| Title |
Classifier Combination Applied to Real Time Face Detection and Classification. |
Type |
Book Chapter |
| Year |
2004 |
Publication |
Recerca Automatica, Visio i Robotica, Ed. UPC, A. Grau, V. Puig (Eds.), 345–353, ISBN 84–7653–844–8 |
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OR;MV |
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BCNPCL @ bcnpcl @ MBV2004b |
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449 |
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