| Records |
| Author |
Hanne Kause; Aura Hernandez-Sabate; Patricia Marquez; Andrea Fuster; Luc Florack; Hans van Assen; Debora Gil |
| Title |
Confidence Measures for Assessing the HARP Algorithm in Tagged Magnetic Resonance Imaging |
Type |
Book Chapter |
| Year |
2015 |
Publication  |
Statistical Atlases and Computational Models of the Heart. Revised selected papers of Imaging and Modelling Challenges 6th International Workshop, STACOM 2015, Held in Conjunction with MICCAI 2015 |
Abbreviated Journal |
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| Volume |
9534 |
Issue |
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Pages |
69-79 |
| Keywords |
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| Abstract |
Cardiac deformation and changes therein have been linked to pathologies. Both can be extracted in detail from tagged Magnetic Resonance Imaging (tMRI) using harmonic phase (HARP) images. Although point tracking algorithms have shown to have high accuracies on HARP images, these vary with position. Detecting and discarding areas with unreliable results is crucial for use in clinical support systems. This paper assesses the capability of two confidence measures (CMs), based on energy and image structure, for detecting locations with reduced accuracy in motion tracking results. These CMs were tested on a database of simulated tMRI images containing the most common artifacts that may affect tracking accuracy. CM performance is assessed based on its capability for HARP tracking error bounding and compared in terms of significant differences detected using a multi comparison analysis of variance that takes into account the most influential factors on HARP tracking performance. Results showed that the CM based on image structure was better suited to detect unreliable optical flow vectors. In addition, it was shown that CMs can be used to detect optical flow vectors with large errors in order to improve the optical flow obtained with the HARP tracking algorithm. |
| Address |
Munich; Germany; January 2015 |
| Corporate Author |
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| Publisher |
Springer International Publishing |
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Abbreviated Series Title |
LNCS |
| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-319-28711-9 |
Medium |
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| Area |
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Expedition |
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Conference |
STACOM |
| Notes |
ADAS; IAM; 600.075; 600.076; 600.060; 601.145 |
Approved |
no |
| Call Number |
Admin @ si @ KHM2015 |
Serial |
2734 |
| Permanent link to this record |
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| Author |
Jaume Garcia; Debora Gil; Aura Hernandez-Sabate |
| Title |
Endowing Canonical Geometries to Cardiac Structures |
Type |
Book Chapter |
| Year |
2010 |
Publication |
Statistical Atlases And Computational Models Of The Heart |
Abbreviated Journal |
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| Volume |
6364 |
Issue |
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Pages |
124-133 |
| Keywords |
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| Abstract |
International conference on Cardiac electrophysiological simulation challenge
In this paper, we show that canonical (shape-based) geometries can be endowed to cardiac structures using tubular coordinates defined over their medial axis. We give an analytic formulation of these geometries by means of B-Splines. Since B-Splines present vector space structure PCA can be applied to their control points and statistical models relating boundaries and the interior of the anatomical structures can be derived. We demonstrate the applicability in two cardiac structures, the 3D Left Ventricular volume, and the 2D Left-Right ventricle set in 2D Short Axis view. |
| Address |
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Thesis |
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| Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
Camara, O.; Pop, M.; Rhode, K.; Sermesant, M.; Smith, N.; Young, A. |
| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
Lecture Notes in Computer Science |
Abbreviated Series Title |
LNCS |
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Medium |
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Conference |
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| Notes |
IAM |
Approved |
no |
| Call Number |
IAM @ iam @ GGH2010b |
Serial |
1515 |
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| Author |
H. Martin Kjer; Jens Fagertun; Sergio Vera; Debora Gil |
| Title |
Medial structure generation for registration of anatomical structures |
Type |
Book Chapter |
| Year |
2017 |
Publication |
Skeletonization, Theory, Methods and Applications |
Abbreviated Journal |
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| Volume |
11 |
Issue |
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Pages |
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Expedition |
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Conference |
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| Notes |
IAM; 600.096; 600.075; 600.145 |
Approved |
no |
| Call Number |
Admin @ si @ MFV2017a |
Serial |
2935 |
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| Author |
Cristhian Aguilera; M.Ramos; Angel Sappa |
| Title |
Simulated Annealing: A Novel Application of Image Processing in the Wood Area |
Type |
Book Chapter |
| Year |
2012 |
Publication |
Simulated Annealing – Advances, Applications and Hybridizations |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
91-104 |
| Keywords |
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Place of Publication |
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Editor |
Marcos de Sales Guerra Tsuzuki |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
978-953-51-0710-1 |
Medium |
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Expedition |
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Conference |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
Admin @ si @ ARS2012 |
Serial |
2156 |
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| Author |
Angel Sappa; David Geronimo; Fadi Dornaika; Antonio Lopez |
| Title |
Stereo Vision Camera Pose Estimation for On-Board Applications |
Type |
Book Chapter |
| Year |
2007 |
Publication |
Scene Reconstruction, Pose Estimation and Traking |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
39-50 |
| Keywords |
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| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Rustam Stolking |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
978-3-902613-06-6 |
Medium |
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Expedition |
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Conference |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SGD2007 |
Serial |
797 |
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| Author |
David Aldavert; Ricardo Toledo |
| Title |
Stereo Vision Local Map Alignment for Robot Environment Mapping |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Robot Vision Second International Workshop, RobVis |
Abbreviated Journal |
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| Volume |
4931 |
Issue |
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Pages |
111–124 |
| Keywords |
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| Abstract |
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| Address |
Auckland (New Zealand) |
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Thesis |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
LNCS |
| Series Volume |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
Admin @ si @ AlT2008 |
Serial |
1100 |
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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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Pages |
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Editor |
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Original Title |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ MBV2004b |
Serial |
449 |
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| Author |
Thanh Ha Do; Salvatore Tabbone; Oriol Ramos Terrades |
| Title |
Spotting Symbol over Graphical Documents Via Sparsity in Visual Vocabulary |
Type |
Book Chapter |
| Year |
2016 |
Publication |
Recent Trends in Image Processing and Pattern Recognition |
Abbreviated Journal |
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| Volume |
709 |
Issue |
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Pages |
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| Abstract |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
RTIP2R |
| Notes |
DAG |
Approved |
no |
| Call Number |
Admin @ si @ HTR2016 |
Serial |
2956 |
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| Author |
Felipe Lumbreras; Ramon Baldrich; Maria Vanrell; Joan Serrat; Juan J. Villanueva |
| Title |
Multiresolution texture classification of ceramic tiles. |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Recent Research developments in optical engineering, Research Signpost, 2: 213–228 |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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| Address |
India |
| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Title |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
ADAS;CIC |
Approved |
no |
| Call Number |
ADAS @ adas @ LBV1999b |
Serial |
45 |
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| Author |
Jaume Garcia; Petia Radeva; Francesc Carreras |
| Title |
Combining Spectral and Active Shape methods to Track Tagged MRI |
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 |
37-44 |
| Keywords |
MR; tagged MR; ASM; LV segmentation; motion estimation. |
| Abstract |
Tagged magnetic resonance is a very usefull and unique tool that provides a complete local and global knowledge of the left ventricle (LV) motion. In this article we introduce a method capable of tracking and segmenting the LV. Spectral methods are applied in order to obtain the so called HARP images which encode information about movement and are the base for LV point-tracking. For segmentation we use Active Shapes (ASM) that model LV shape variation in order to overcome possible local misplacements of the boundary. We finally show experiments on both synthetic and real data which appear to be very promising. |
| Address |
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Thesis |
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| Publisher |
IOS Press |
Place of Publication |
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Editor |
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Summary Language |
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Edition |
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ISBN |
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Medium |
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Expedition |
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Conference |
CCIA |
| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ GRC2004 |
Serial |
1488 |
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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 |
| Keywords |
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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. |
| Address |
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Thesis |
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| Publisher |
IOS Press |
Place of Publication |
Barcelona (Spain) |
Editor |
al, J.V. et |
| Language |
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Summary Language |
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Original Title |
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Series Title |
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Series Issue |
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Edition |
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ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ GiR2004a |
Serial |
1533 |
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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. |
| Address |
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Thesis |
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| Publisher |
IOS Press |
Place of Publication |
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Editor |
J. Vitrià, P. Radeva and I. Aguiló |
| Language |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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ISBN |
978-1-58603-466-5 |
Medium |
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Conference |
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| Notes |
MV;IAM;MILAB;SIAI |
Approved |
no |
| Call Number |
IAM @ iam @ VGR2004 |
Serial |
1663 |
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| Author |
Santiago Segui; Laura Igual; Petia Radeva; Carolina Malagelada; Fernando Azpiroz; Jordi Vitria |
| Title |
A Semi-Supervised Learning Method for Motility Disease Diagnostic |
Type |
Book Chapter |
| Year |
2007 |
Publication |
Progress in Pattern Recognition, Image Analysis and Applications, 12th Iberoamerican Congress on Pattern (CIARP 2007), LCNS 4756:773–782, ISBN 978–3–540–76724–4 |
Abbreviated Journal |
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| Notes |
OR;MILAB;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ SIR2007b |
Serial |
897 |
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| Author |
Angel Sappa; Niki Aifanti; Sotiris Malassiotis; Michael G. Strintzis |
| Title |
Prior Knowledge Based Motion Model Representation |
Type |
Book Chapter |
| Year |
2009 |
Publication |
Progress in Computer Vision and Image Analysis |
Abbreviated Journal |
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| Volume |
16 |
Issue |
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Pages |
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Editor |
Horst Bunke; JuanJose Villanueva; Gemma Sanchez |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SAM2009 |
Serial |
1235 |
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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 |
Type |
Book Chapter |
| Year |
2006 |
Publication |
Proceedings of the Advanced Concepts for Intelligent Vision Systems Conference, LNCS 4179: 944–955 |
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Antwerp (Belgium) |
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no |
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Admin @ si @ AAA2006 |
Serial |
661 |
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