| Records |
| Author |
Joan Serrat; Ferran Diego; Felipe Lumbreras |
| Title |
Los faros delanteros a traves del objetivo |
Type |
Journal |
| Year |
2008 |
Publication |
UAB Divulga, Revista de divulgacion cientifica |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SDL2008b |
Serial |
1471 |
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| Author |
Carme Julia; Angel Sappa; Felipe Lumbreras |
| Title |
Aprendiendo a recrear la realidad en 3D |
Type |
Journal |
| Year |
2008 |
Publication |
UAB Divulga, Revista de divulgacion cientifica |
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| Notes |
spreading;ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ JSL2008b |
Serial |
1472 |
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| Author |
Oriol Ramos Terrades; N. Serrano; Albert Gordo; Ernest Valveny; Alfons Juan-Ciscar |
| Title |
Interactive-predictive detection of handwritten text blocks |
Type |
Conference Article |
| Year |
2010 |
Publication |
17th Document Recognition and Retrieval Conference, part of the IS&T-SPIE Electronic Imaging Symposium |
Abbreviated Journal |
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| Volume |
7534 |
Issue |
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Pages |
75340Q–75340Q–10 |
| Keywords |
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| Abstract |
A method for text block detection is introduced for old handwritten documents. The proposed method takes advantage of sequential book structure, taking into account layout information from pages previously transcribed. This glance at the past is used to predict the position of text blocks in the current page with the help of conventional layout analysis methods. The method is integrated into the GIDOC prototype: a first attempt to provide integrated support for interactive-predictive page layout analysis, text line detection and handwritten text transcription. Results are given in a transcription task on a 764-page Spanish manuscript from 1891. |
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DRR |
| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ TSG2010 |
Serial |
1479 |
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| Author |
Joel Barajas; Jaume Garcia; Karla Lizbeth Caballero; Francesc Carreras; Sandra Pujades; Petia Radeva |
| Title |
Correction of Misalignment Artifacts Among 2-D Cardiac MR Images in 3-D Space |
Type |
Conference Article |
| Year |
2006 |
Publication |
1st International Wokshop on Computer Vision for Intravascular and Intracardiac Imaging (CVII’06) |
Abbreviated Journal |
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| Volume |
3217 |
Issue |
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Pages |
114-121 |
| Keywords |
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| Abstract |
Cardiac Magnetic Resonance images offer the opportunity to study the heart in detail. One of the main issues in its modelling is to create an accurate 3-D reconstruction of the left ventricle from 2-D views. A first step to achieve this goal is the correct registration among the different image planes due to patient movements. In this article, we present an accurate method to correct displacement artifacts using the Normalized Mutual Information. Here, the image views are treated as planes in order to diminish the approximation error caused by the association of a certain thickness, and moved simultaneously to avoid any kind of bias in the alignment process. This method has been validated using real and syntectic plane displacements, yielding promising results. |
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Place of Publication |
Copenhagen (Denmark) |
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ISBN |
978-3-540-22977-3 |
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Expedition |
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Conference |
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| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ BGC2006 |
Serial |
1485 |
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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. |
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IOS Press |
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Conference |
CCIA |
| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ GRC2004 |
Serial |
1488 |
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| Author |
J.L.Bruguera; R.Casado; M.Martinez; I.Corral; Enric Marti; L.A.Branda |
| Title |
El apoyo institucional como elemento favorecedor de la coordinación docente: experiencias en diferentes universidades |
Type |
Miscellaneous |
| Year |
2009 |
Publication |
Revista Red-U |
Abbreviated Journal |
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IAM |
Approved |
no |
| Call Number |
IAM @ iam @ BCM2009 |
Serial |
1490 |
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| Author |
Cristina Cañero; Petia Radeva; Oriol Pujol; Ricardo Toledo; Debora Gil; J. Saludes; Juan J. Villanueva; B. Garcia del Blanco; J. Mauri; E. Fernandez-Nofrerias; J.A. Gomez-Hospital; E. Iraculis; J. Comin; C. Quiles; F. Jara; A. Cequier; E. Esplugas |
| Title |
Optimal Stent Implantation: Three-dimensional Evaluation of the Mutual Position of Stent and Vessel via Intracoronary Ecography |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proceedings of International Conference on Computer in Cardiology (CIC´99) |
Abbreviated Journal |
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| Abstract |
We present a new automatic technique to visualize and quantify the mutual position between the stent and the vessel wall by considering their three-dimensional reconstruction. Two deformable generalized cylinders adapt to the image features in all IVUS planes corresponding to the vessel wall and the stent in order to reconstruct the boundaries of the stent and the vessel in space. The image features that characterize the stent and the vessel wall are determined in terms of edge and ridge image detectors taking into account the gray level of the image pixels. We show that the 30 reconstruction by deformable cylinders is accurate and robust due to the spatial data coherence in the considered volumetric IVUS image. The main clinic utility of the stent and vessel reconstruction by deformable’ cylinders consists of its possibility to visualize and to assess the optimal stent introduction. |
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| Notes |
MILAB; RV; IAM; ADAS; HuPBA |
Approved |
no |
| Call Number |
IAM @ iam @ CRP1999a |
Serial |
1491 |
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| Author |
Cristina Cañero; Petia Radeva; Oriol Pujol; Ricardo Toledo; Debora Gil; J. Saludes; Juan J. Villanueva; B. Garcia del Blanco; J. Mauri; Eduard Fernandez-Nofrerias; J.A. Gomez-Hospital; E. Iraculis; J. Comin; C. Quiles; F. Jara; A. Cequier; E.Esplugas |
| Title |
Three-dimensional reconstruction and quantification of the coronary tree using intravascular ultrasound images |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proceedings of International Conference on Computer in Cardiology (CIC´99) |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
In this paper we propose a new Computer Vision technique to reconstruct the vascular wall in space using a deformable model-based technique and compounding methods, based in biplane angiography and intravascular ultrasound data jicsion. It is also proposed a generalpurpose three-dimensional guided interpolation method. The three dimensional centerline of the vessel is reconstructed from geometrically corrected biplane angiographies using automatic segmentation methods and snakes. The IVUS image planes are located in the threedimensional space and correctly oriented. A led interpolation method based in B-SurJaces and snakes isused to fill the gaps among image planes |
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Conference |
CINC99 |
| Notes |
MILAB;RV;IAM;ADAS;HuPBA |
Approved |
no |
| Call Number |
IAM @ iam @ CRP1999b |
Serial |
1492 |
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| Author |
Debora Gil; Jordi Gonzalez; Gemma Sanchez (eds) |
| Title |
Computer Vision: Advances in Research and Development |
Type |
Book Whole |
| Year |
2007 |
Publication |
Proceedings of the 2nd CVC International Workshop |
Abbreviated Journal |
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| Publisher |
UAB |
Place of Publication |
Bellaterra (Spain) |
Editor |
Debora Gil; Jordi Gonzalez; Gemma Sanchez |
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2 |
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ISBN |
978-84-935251-4-9 |
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| Notes |
IAM; ISE; DAG |
Approved |
no |
| Call Number |
IAM @ iam @ GGS2007 |
Serial |
1493 |
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| Author |
Enric Marti; Jordi Regincos; Jaime Lopez-Krahe; Juan J.Villanueva |
| Title |
A system for interpretation of hand line drawings as three-dimensional scene for CAD input |
Type |
Conference Article |
| Year |
1991 |
Publication |
Proceedings of the First International Conference on Document Analysis and Recognition |
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Pages |
472-480 |
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IAM;ISE |
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no |
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IAM @ iam @ Mar1991 |
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1494 |
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| Author |
G.Estape; Enric Marti |
| Title |
L’ús d’aplicacions de visualització 3D com a eina d’aprenenetatge en activitats formatives dirigides i autònomes: el cas del programa Bluestar |
Type |
Miscellaneous |
| Year |
2008 |
Publication |
V Jornades d’Innovació Docent UAB |
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IAM |
Approved |
no |
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IAM @ iam @ ESM2008 |
Serial |
1495 |
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| Author |
Francesc Carreras; Jaume Garcia; Debora Gil; Sandra Pujadas; Chi ho Lion; R.Suarez-Arias; R.Leta; Xavier Alomar; Manuel Ballester; Guillem Pons-Llados |
| Title |
Left ventricular torsion and longitudinal shortening: two fundamental components of myocardial mechanics assessed by tagged cine-MRI in normal subjects |
Type |
Journal Article |
| Year |
2012 |
Publication |
International Journal of Cardiovascular Imaging |
Abbreviated Journal |
IJCI |
| Volume |
28 |
Issue |
2 |
Pages |
273-284 |
| Keywords |
Magnetic resonance imaging (MRI); Tagging MRI; Cardiac mechanics; Ventricular torsion |
| Abstract |
Cardiac magnetic resonance imaging (Cardiac MRI) has become a gold standard diagnostic technique for the assessment of cardiac mechanics, allowing the non-invasive calculation of left ventric- ular long axis longitudinal shortening (LVLS) and absolute myocardial torsion (AMT) between basal and apical left ventricular slices, a movement directly related to the helicoidal anatomic disposition of the myocardial fibers. The aim of this study is to determine AMT and LVLS behaviour and normal values from a group of healthy subjects. A group of 21 healthy volunteers (15 males) (age: 23–55 y.o., mean:30.7 ± 7.5) were prospectively included in an obser- vational study by Cardiac MRI. Left ventricular rotation (degrees) was calculated by custom-made software (Harmonic Phase Flow) in consecutive LV short axis planes tagged cine-MRI sequences. AMT was determined from the difference between basal and apical planes LV rotations. LVLS (%) was determined from the LV longitudinal and horizontal axis cine-MRI images. All the 21 cases studied were interpretable, although in three cases the value of the LV apical rotation could not be determined. The mean rotation of the basal and apical planes at end-systole were -3.71° ± 0.84° and 6.73° ± 1.69° (n:18) respectively, resulting in a LV mean AMT of 10.48° ± 1.63° (n:18). End-systolic mean LVLS was 19.07 ± 2.71%. Cardiac MRI allows for the calculation of AMT and LVLS, fundamental functional components of the ventricular twist mechanics conditioned, in turn, by the anatomical helical layout of the myocardial fibers. These values provide complementary information about systolic ventricular function in relation to the traditional parameters used in daily practice. |
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Springer Netherlands |
Place of Publication |
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Edition |
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1569-5794 |
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IAM; |
Approved |
no |
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IAM @ iam @ CGG2012 |
Serial |
1496 |
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| Author |
Paula Fritzsche; C.Roig; Ana Ripoll; Emilio Luque; Aura Hernandez-Sabate |
| Title |
A Performance Prediction Methodology for Data-dependent Parallel Applications |
Type |
Conference Article |
| Year |
2006 |
Publication |
Proceedings of the IEEE International Conference on Cluster Computing |
Abbreviated Journal |
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Issue |
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Pages |
1-8 |
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| Abstract |
The increase in the use of parallel distributed architectures in order to solve large-scale scientific problems has generated the need for performance prediction for both deterministic applications and non-deterministic applications. In particular, the performance prediction of data dependent programs is an extremely challenging problem because for a specific issue the input datasets may cause different execution times. Generally, a parallel application is characterized as a collection of tasks and their interrelations. If the application is time-critical it is not enough to work with only one value per task, and consequently knowledge of the distribution of task execution times is crucial. The development of a new prediction methodology to estimate the performance of data-dependent parallel applications is the primary target of this study. This approach makes it possible to evaluate the parallel performance of an application without the need of implementation. A real data-dependent arterial structure detection application model is used to apply the methodology proposed. The predicted times obtained using the new methodology for genuine datasets are compared with predicted times that arise from using only one execution value per task. Finally, the experimental study shows that the new methodology generates more precise predictions. |
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IAM |
Approved |
no |
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IAM @ iam @ FRR2006 |
Serial |
1497 |
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| Author |
Jaume Garcia |
| Title |
Statistical Models of the Architecture and Function of the Left Ventricle |
Type |
Book Whole |
| Year |
2009 |
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 |
Cardiovascular Diseases, specially those affecting the Left Ventricle (LV), are the leading cause of death in developed countries with approximately a 30% of all global deaths. In order to address this public health concern, physicians focus on diagnosis and therapy planning. On one hand, early and accurate detection of Regional Wall Motion Abnormalities (RWMA) significantly contributes to a quick diagnosis and prevents the patient to reach more severe stages. On the other hand, a thouroughly knowledge of the normal gross anatomy of the LV, as well as, the distribution of its muscular fibers is crucial for designing specific interventions and therapies (such as pacemaker implanction). Statistical models obtained from the analysis of different imaging modalities allow the computation of the normal ranges of variation within a given population. Normality models are a valuable tool for the definition of objective criterions quantifying the degree of (anomalous) deviation of the LV function and anatomy for a given subject. The creation of statistical models involve addressing three main issues: extraction of data from images, definition of a common domain for comparison of data across patients and designing appropriate statistical analysis schemes. In this PhD thesis we present generic image processing tools for the creation of statistical models of the LV anatomy and function. On one hand, we use differential geometry concepts to define a computational framework (the Normalized Parametric Domain, NPD) suitable for the comparison and fusion of several clinical scores obtained over the LV. On the other hand, we present a variational approach (the Harmonic Phase Flow, HPF) for the estimation of myocardial motion that provides dense and continuous vector fields without overestimating motion at injured areas. These tools are used for the creation of statistical models. Regarding anatomy, we obtain an atlas jointly modelling, both, LV gross anatomy and fiber architecture. Regarding function, we compute normality patterns of scores characterizing the (global and local) LV function and explore, for the first time, the configuration of local scores better suited for RWMA detection. |
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Thesis |
Ph.D. thesis |
| Publisher |
Ediciones Graficas Rey |
Place of Publication |
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Editor |
Debora Gil |
| Language |
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Summary Language |
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Original Title |
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IAM |
Approved |
no |
| Call Number |
IAM @ iam @ Gar2009a |
Serial |
1499 |
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| Author |
Jaume Garcia; Debora Gil; Francesc Carreras; Sandra Pujades; R.Leta; Xavier Alomar; Guillem Pons-LLados |
| Title |
Patrons de Normalitat Regional per la Valoració de la Funció del Ventricle Esquerre |
Type |
Conference Article |
| Year |
2008 |
Publication |
XX Congrés de la Societat Catalana de Cardiologia |
Abbreviated Journal |
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Issue |
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Pages |
60 |
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| Abstract |
Les malalties cardiovasculars afecten les propietats contràctils de la banda ventricular i provoquen una variació de la funció del Ventricle Esquerre (VE) . Només els indicadors locals (strains, la deformació del teixit) són capaços de detectar anomalies en territoris específics del VE . Patrons de normalitat regionals d’aquests paràmetres serien d’utilitat a l’hora de valorar-ne la funció .
Presentem un Domini Paramètric Normalitzat (DPN) que permet comparar dades de diferents pacients i definir Patrons de Normalitat Regional (PNR) |
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Place of Publication |
Barcelona |
Editor |
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| Language |
catalan |
Summary Language |
catalan |
Original Title |
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IAM; |
Approved |
no |
| Call Number |
IAM @ iam @ GGC2008b |
Serial |
1503 |
| Permanent link to this record |
