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Author
Aura Hernandez-Sabate; Debora Gil;Eduard Fernandez-Nofrerias;Petia Radeva; Enric Marti
Title
Approaching Artery Rigid Dynamics in IVUS
Type
Journal Article
Year
2009
Publication
IEEE Transactions on Medical Imaging
Abbreviated Journal
TMI
Volume
28
Issue
11
Pages
1670-1680
Keywords
Fourier analysis; intravascular ultrasound (IVUS) dynamics; longitudinal motion; quality measures; tissue deformation.
Abstract
Tissue biomechanical properties (like strain and stress) are playing an increasing role in diagnosis and long-term treatment of intravascular coronary diseases. Their assessment strongly relies on estimation of vessel wall deformation. Since intravascular ultrasound (IVUS) sequences allow visualizing vessel morphology and reflect its dynamics, this technique represents a useful tool for evaluation of tissue mechanical properties. Image misalignment introduced by vessel-catheter motion is a major artifact for a proper tracking of tissue deformation. In this work, we focus on compensating and assessing IVUS rigid in-plane motion due to heart beating. Motion parameters are computed by considering both the vessel geometry and its appearance in the image. Continuum mechanics laws serve to introduce a novel score measuring motion reduction in in vivo sequences. Synthetic experiments validate the proposed score as measure of motion parameters accuracy; whereas results in in vivo pullbacks show the reliability of the presented methodologies in clinical cases.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0278-0062
ISBN
Medium
Area
Expedition
Conference
Notes
IAM; MILAB
Approved
no
Call Number
IAM @ iam @ HGF2009
Serial
1545
Permanent link to this record
Author
Victor Ponce; Mario Gorga; Xavier Baro; Petia Radeva; Sergio Escalera
Title
Análisis de la expresión oral y gestual en proyectos fin de carrera vía un sistema de visión artificial
Type
Journal Article
Year
2011
Publication
ReVisión
Abbreviated Journal
Volume
4
Issue
1
Pages
Keywords
Abstract
La comunicación y expresión oral es una competencia de especial relevancia en el EEES. No obstante, en muchas enseñanzas superiores la puesta en práctica de esta competencia ha sido relegada principalmente a la presentación de proyectos fin de carrera. Dentro de un proyecto de innovación docente, se ha desarrollado una herramienta informática para la extracción de información objetiva para el análisis de la expresión oral y gestual de los alumnos. El objetivo es dar un “feedback” a los estudiantes que les permita mejorar la calidad de sus presentaciones. El prototipo inicial que se presenta en este trabajo permite extraer de forma automática información audiovisual y analizarla mediante técnicas de aprendizaje. El sistema ha sido aplicado a 15 proyectos fin de carrera y 15 exposiciones dentro de una asignatura de cuarto curso. Los resultados obtenidos muestran la viabilidad del sistema para sugerir factores que ayuden tanto en el éxito de la comunicación así como en los criterios de evaluación.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1989-1199
ISBN
Medium
Area
Expedition
Conference
Notes
HuPBA; MILAB;MV
Approved
no
Call Number
Admin @ si @ PGB2011d
Serial
2514
Permanent link to this record
Author
O. Rodriguez; J. Mauri; E Fernandez-Nofrerias; A. Tovar; R. Villuendas; V. Valle; Oriol Pujol; Petia Radeva
Title
Analisis de texturas mediante la modificacion de un modelo binario local para la segmentacion automatica de secuencias de ecografia intracoronaria
Type
Journal
Year
2003
Publication
Revista Española de Cardiologia (IF: 0.959), 56(2), Congreso de las Enfermedades Cardiovasculares
Abbreviated Journal
Volume
Issue
Pages
Keywords
Abstract
Address
Sevilla (Spain)
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
MILAB;HuPBA
Approved
no
Call Number
BCNPCL @ bcnpcl @ RMF2003f
Serial
413
Permanent link to this record
Author
Oriol Pujol; Sergio Escalera; Petia Radeva
Title
An Incremental Node Embedding Technique for Error Correcting Output Codes
Type
Journal
Year
2008
Publication
Pattern Recognition
Abbreviated Journal
PR
Volume
41
Issue
2
Pages
713–725
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
MILAB;HuPBA
Approved
no
Call Number
BCNPCL @ bcnpcl @ PER2008
Serial
942
Permanent link to this record
Author
Oriol Rodriguez-Leor; E. Fernandez-Nofrerias; J. Mauri; R. Villuendas; C. Garcia; V. Valle; Cristina Cañero; Petia Radeva
Title
An empiric model for three-dimensional reconstruction of coronary vessels from X-ray angiography
Type
Journal
Year
2003
Publication
European Heart Journal (IF: 5.997), ESC Congress 2003
Abbreviated Journal
Volume
Issue
Pages
Keywords
Abstract
Address
Vienna
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
MILAB
Approved
no
Call Number
BCNPCL @ bcnpcl @ RMF2003b
Serial
409
Permanent link to this record
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