| Records |
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 |
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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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Barcelona |
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catalan |
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catalan |
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IAM; |
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IAM @ iam @ GGC2008b |
Serial |
1503 |
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| Author |
Jaume Garcia; Debora Gil; Sandra Pujades; Francesc Carreras |
| Title |
A Variational Framework for Assessment of the Left Ventricle Motion |
Type |
Journal Article |
| Year |
2008 |
Publication |
International Journal Mathematical Modelling of Natural Phenomena |
Abbreviated Journal |
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| Volume |
3 |
Issue |
6 |
Pages |
76-100 |
| Keywords |
Key words: Left Ventricle Dynamics, Ventricular Torsion, Tagged Magnetic Resonance, Motion Tracking, Variational Framework, Gabor Transform. |
| Abstract |
Impairment of left ventricular contractility due to cardiovascular diseases is reflected in left ventricle (LV) motion patterns. An abnormal change of torsion or long axis shortening LV values can help with the diagnosis and follow-up of LV dysfunction. Tagged Magnetic Resonance (TMR) is a widely spread medical imaging modality that allows estimation of the myocardial tissue local deformation. In this work, we introduce a novel variational framework for extracting the left ventricle dynamics from TMR sequences. A bi-dimensional representation space of TMR images given by Gabor filter banks is defined. Tracking of the phases of the Gabor response is combined using a variational framework which regularizes the deformation field just at areas where the Gabor amplitude drops, while restoring the underlying motion otherwise. The clinical applicability of the proposed method is illustrated by extracting normality models of the ventricular torsion from 19 healthy subjects. |
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IAM |
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IAM @ iam @ GGC2008a |
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1058 |
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| Author |
Jaume Garcia; Debora Gil; Sandra Pujades; Francesc Carreras |
| Title |
Valoracion de la Funcion del Ventriculo Izquierdo mediante Modelos Regionales Hiperparametricos |
Type |
Journal Article |
| Year |
2008 |
Publication |
Revista Española de Cardiologia |
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| Volume |
61 |
Issue |
3 |
Pages |
79 |
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La mayoría de la enfermedades cardiovasculares afectan a las propiedades contráctiles de la banda ventricular helicoidal. Esto se refleja en una variación del comportamiento normal de la función ventricular. Parámetros locales tales como los strains, o la deformación experimentada por el tejido, son indicadores capaces de detectar anomalías funcionales en territorios específicos. A menudo, dichos parámetros son considerados de forma separada. En este trabajo presentamos un marco computacional (el Dominio Paramétrico Normalizado, DPN) que permite integrarlos en hiperparámetros funcionales y estudiar sus rangos de normalidad. Dichos rangos permiten valorar de forma objetiva la función regional de cualquier nuevo paciente. Para ello, consideramos secuencias de resonancia magnética etiquetada a nivel basal, medio y apical. Los hiperparámetros se obtienen a partir del movimiento intramural del VI estimado mediante el método Harmonic Phase Flow. El DPN se define a partir de en una parametrización del Ventrículo Izquierdo (VI) en sus coordenadas radiales y circunferencial basada en criterios anatómicos. El paso de los hiperparámetros al DPN hace posible la comparación entre distintos pacientes. Los rangos de normalidad se definen mediante análisis estadístico de valores de voluntarios sanos en 45 regiones del DPN a lo largo de 9 fases sistólicas. Se ha usado un conjunto de 19 (14 H; E: 30.7±7.5) voluntarios sanos para crear los patrones de normalidad y se han validado usando 2 controles sanos y 3 pacientes afectados de contractilidad global reducida. Para los controles los resultados regionales se han ajustado dentro de la normalidad, mientras que para los pacientes se han obtenido valores anormales en las zonas descritas, localizando y cuantificando así el diagnóstico empírico. |
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IAM; |
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IAM @ iam @ GRP2008 |
Serial |
1032 |
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| Author |
Jaume Garcia; Francesc Carreras; Sandra Pujades; Debora Gil |
| Title |
Regional motion patterns for the Left Ventricle function assessment |
Type |
Conference Article |
| Year |
2008 |
Publication |
Proc. 19th Int. Conf. Pattern Recognition ICPR 2008 |
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Pages |
1-4 |
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Regional scores (e.g. strain, perfusion) of the Left Ventricle (LV) functionality are playing an increasing role in the diagnosis of cardiac diseases. A main limitation is the lack of normality models for complementary scores oriented to assessment of the LV integrity. This paper introduces an original framework based on a parametrization of the LV domain, which allows comparison across subjects of local physiological measures of different nature. We compute regional normality patterns in a feature space characterizing the LV function. We show the consistency of the model for the regional motion on healthy and hypokinetic pathological cases |
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IAM |
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IAM @ iam @ GCP2008 |
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1510 |
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| Author |
Javier Varona; Antoni Jaume-i-Capo; Jordi Gonzalez; Francisco Jose Perales |
| Title |
Toward Natural Interaction through Visual Recognition of Body Gestures in Real-Time |
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| Year |
2008 |
Publication |
Interacting with Computers, diu 10,1016/j.intcom.2008.10.001, available on line |
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ISE @ ise @ VJG2008 |
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1022 |
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| Author |
Javier Varona; Jordi Gonzalez; Ignasi Rius; Juan J. Villanueva |
| Title |
Importance of Detection for Video Surveillance Applications |
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Journal |
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2008 |
Publication |
Optical Engineering, vol. 47(8), 087201/1–9 |
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ISE @ ise @ VGR2008 |
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998 |
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| Author |
Javier Vazquez; Maria Vanrell; Ramon Baldrich |
| Title |
Towards a Psychophysical Evaluation of Colour Constancy Algorithms |
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Conference Article |
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2008 |
Publication |
4th European Conference on Colour in Graphics, Imaging and Vision Proceedings |
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372–377 |
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Terrassa (Spain) |
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CGIV08 |
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CAT;CIC |
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no |
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CAT @ cat @ VVB2008a |
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968 |
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| Author |
Joan Mas; J.A. Jorge; Gemma Sanchez; Josep Llados |
| Title |
Representing and Parsing Sketched Symbols using Adjacency Grammars and a Grid-Directed Parser |
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Book Chapter |
| Year |
2008 |
Publication |
Graphics Recognition: Recent Advances and New Opportunities, |
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5046 |
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176–187 |
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W. Liu, J. Llados, J.M. Ogier |
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DAG |
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DAG @ dag @ MJS2008 |
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991 |
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Joan Mas; Jose Antonio Rodriguez; Dimosthenis Karatzas; Gemma Sanchez; Josep Llados |
| Title |
HistoSketch: A Semi-Automatic Annotation Tool for Archival Documents |
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Conference Article |
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2008 |
Publication |
Proceedings of the 8th International Workshop on Document Analysis Systems, |
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517–524 |
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Nara (Japan) |
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DAS |
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DAG @ dag @ MRK2008a |
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1061 |
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| Author |
Joan Serrat; Ferran Diego; Felipe Lumbreras |
| Title |
Los faros delanteros a traves del objetivo |
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2008 |
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UAB Divulga, Revista de divulgacion cientifica |
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ADAS |
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ADAS @ adas @ SDL2008b |
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1471 |
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Joan Serrat; Ferran Diego; Felipe Lumbreras; Jose Manuel Alvarez; Antonio Lopez; C. Elvira |
| Title |
Dynamic Comparison of Headlights |
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2008 |
Publication |
Journal of Automobile Engineering |
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222 |
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5 |
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643–656 |
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video alignment |
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ADAS @ adas @ SDL2008a |
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958 |
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| Author |
Jordi Gonzalez; Thomas B. Moeslund |
| Title |
Tracking Humans for the Evaluation of their Motion in Image Sequences |
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2008 |
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First International Workshop, THEMIS |
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Leeds (UK) |
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978-84-935251-9-4 |
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THEMIS |
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ISE @ ise @ GMW2008 |
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1002 |
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| Author |
Jose Antonio Rodriguez; Florent Perronnin |
| Title |
Local Gradient Histogram Features for Word Spotting in Unconstrained Handwritten Documents |
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2008 |
Publication |
Graphics Recognition: Recent Advances and New Opportunities |
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5046 |
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188–198 |
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W. Liu, J. Llados, J.M. Ogier |
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Admin @ si @ RoP2008a |
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992 |
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Jose Antonio Rodriguez; Florent Perronnin |
| Title |
Local Gradient Histogram Features for Word Spotting in Unconstrained Handwritten Documents |
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Conference Article |
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2008 |
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International Conference on Frontiers in Handwriting Recognition |
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7–12 |
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Montreal (Canada) |
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ICFHR |
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Admin @ si @ RoP2008b |
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1066 |
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| Author |
Jose Antonio Rodriguez; Florent Perronnin |
| Title |
Score Normalization for Hmm-based Word Spotting Using Universal Background Model |
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Conference Article |
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2008 |
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International Conference on Frontiers in Handwriting Recognition |
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82–87 |
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Montreal (Canada) |
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ICFHR |
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Admin @ si @ RoP2008c |
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1067 |
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