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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
Volume
Issue
Pages
Keywords
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.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
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Series Title
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Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
MILAB; RV; IAM; ADAS; HuPBA
Approved
no
Call Number
IAM @ iam @ CRP1999a
Serial
1491
Permanent link to this record
Author
Cristina Cañero; Petia Radeva; Oriol Pujol; Ricardo Toledo; Debora Gil; J. Saludes; Juan J. Villanueva; B. Garcia del Blanco; Josefina 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
Volume
Issue
Pages
Keywords
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
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
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Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
CINC99
Notes
MILAB;RV;IAM;ADAS;HuPBA
Approved
no
Call Number
IAM @ iam @ CRP1999b
Serial
1492
Permanent link to this record
Author
M.Gomez; Josefina Mauri; Eduard Fernandez-Nofrerias; Oriol Rodriguez-Leon; Carme Julia; Debora Gil; Petia Radeva
Title
Reconstrucción de un modelo espacio-temporal de la luz del vaso a partir de secuencias de ecografía intracoronaria
Type
Conference Article
Year
2002
Publication
XXXVIII Congreso Nacional de la Sociedad Española de Cardiología.
Abbreviated Journal
Volume
Issue
Pages
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
IAM;ADAS;MILAB
Approved
no
Call Number
IAM @ iam @ GMF2002d
Serial
1516
Permanent link to this record
Author
Josefina Mauri; Eduard Fernandez-Nofrerias; B. Garcia del Blanco; E. Iraculis; J.A. Gomez-Hospital; J. Comin; M.A. Sanchez Corral; F. Jara; A. Cequier; E. Esplugas; Debora Gil; J. Saludes; Petia Radeva; Ricardo Toledo; Juan J.Villanueva
Title
Moviment del vas en l anàlisi d imatges d ecografia intracoronària: un model matemàtic
Type
Conference Article
Year
2000
Publication
Congrés de la Societat Catalana de Cardiologia.
Abbreviated Journal
Volume
Issue
Pages
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
IAM;RV;ISE;MILAB;ADAS
Approved
no
Call Number
IAM @ iam @ MNG2000
Serial
1621
Permanent link to this record
Author
Josefina Mauri; Eduard Fernandez-Nofrerias; J. Comin; B. Garcia del Blanco; E. Iraculis; J.A. Gomez-Hospital; P. Valdovinos; F. Jara; A. Cequier; E. Esplugas; Oriol Pujol; Cristina Cañero; Debora Gil; Petia Radeva; Ricardo Toledo
Title
Avaluació del Conjunt Stent/Artèria mitjançant ecografia intracoronària: lentorn informàtic
Type
Conference Article
Year
2000
Publication
Congrés de la Societat Catalana de Cardiologia.
Abbreviated Journal
Volume
Issue
Pages
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
IAM;RV;MILAB;ADAS;HuPBA
Approved
no
Call Number
IAM @ iam @ MNC2000
Serial
1622
Permanent link to this record
Author
Petia Radeva; Joan Serrat; Enric Marti
Title
A snake for model-based segmentation
Type
Conference Article
Year
1995
Publication
Proc. Conf. Fifth Int Computer Vision
Abbreviated Journal
Volume
Issue
Pages
816-821
Keywords
snakes; elastic matching; model-based segmenta tion
Abstract
Despite the promising results of numerous applications, the hitherto proposed snake techniques share some common problems: snake attraction by spurious edge points, snake degeneration (shrinking and attening), convergence and stability of the deformation process, snake initialization and local determination of the parameters of elasticity. We argue here that these problems can be solved only when all the snake aspects are considered. The snakes proposed here implement a new potential eld and external force in order to provide a deformation convergence, attraction by both near and far edges as well as snake behaviour selective according to the edge orientation. Furthermore, we conclude that in the case of model-based seg mentation, the internal force should include structural information about the expected snake shape. Experiments using this kind of snakes for segmenting bones in complex hand radiographs show a signicant improvement.
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;ADAS;IAM
Approved
no
Call Number
IAM @ iam @ RSM1995
Serial
1634
Permanent link to this record
Author
Oriol Rodriguez-Leon; Josefina Mauri; Eduard Fernandez-Nofrerias; M.Gomez; Antonio Tovar; L.Cano; C.Diego; Carme Julia; Vicente del Valle; Debora Gil; Petia Radeva
Title
Ecografia Intracoronària: Segmentació Automàtica de area de la llum
Type
Conference Article
Year
2002
Publication
XXXVIII Congreso Nacional de la Sociedad Española de Cardiología.
Abbreviated Journal
Volume
Issue
Pages
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
IAM;ADAS;MILAB
Approved
no
Call Number
IAM @ iam @ RMF2002
Serial
1638
Permanent link to this record
Author
Joan Serrat; Enric Marti
Title
Elastic matching using interpolation splines
Type
Conference Article
Year
1991
Publication
IV Spanish Symposium of Pattern Recognition and image Analysis
Abbreviated Journal
Volume
Issue
Pages
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
ADAS;IAM;
Approved
no
Call Number
IAM @ iam @ SMV1991
Serial
1651
Permanent link to this record
Author
Ernest Valveny; Ricardo Toledo; Ramon Baldrich; Enric Marti
Title
Combining recognition-based in segmentation-based approaches for graphic symol recognition using deformable template matching
Type
Conference Article
Year
2002
Publication
Proceeding of the Second IASTED International Conference Visualization, Imaging and Image Proceesing VIIP 2002
Abbreviated Journal
Volume
Issue
Pages
502–507
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
DAG;RV;CAT;IAM;CIC;ADAS
Approved
no
Call Number
IAM @ iam @ VTB2002
Serial
1660
Permanent link to this record
Author
Patricia Marquez; Debora Gil; Aura Hernandez-Sabate
Title
A Confidence Measure for Assessing Optical Flow Accuracy in the Absence of Ground Truth
Type
Conference Article
Year
2011
Publication
IEEE International Conference on Computer Vision – Workshops
Abbreviated Journal
Volume
Issue
Pages
2042-2049
Keywords
IEEE International Conference on Computer Vision – Workshops
Abstract
Optical flow is a valuable tool for motion analysis in autonomous navigation systems. A reliable application requires determining the accuracy of the computed optical flow. This is a main challenge given the absence of ground truth in real world sequences. This paper introduces a measure of optical flow accuracy for Lucas-Kanade based flows in terms of the numerical stability of the data-term. We call this measure optical flow condition number. A statistical analysis over ground-truth data show a good statistical correlation between the condition number and optical flow error. Experiments on driving sequences illustrate its potential for autonomous navigation systems.
Address
Corporate Author
Thesis
Publisher
IEEE
Place of Publication
Barcelona (Spain)
Editor
Language
English
Summary Language
English
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
ICCVW
Notes
IAM; ADAS
Approved
no
Call Number
IAM @ iam @ MGH2011
Serial
1682
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