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Author
Oriol Rodriguez-Leor; J. Mauri; Eduard Fernandez-Nofrerias; Antonio Tovar; Vicente del Valle; Aura Hernandez-Sabate; Debora Gil; Petia Radeva
Title
Utilizacion de la estructura de los campos vectoriales para la deteccion de la Adventicia en imagenes de Ecografia Intracoronaria
Type
Journal
Year
2004
Publication
Revista Española de Cardiología
Abbreviated Journal
REC
Volume
57
Issue
2
Pages
100
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
SEC
Notes
MILAB;IAM
Approved
no
Call Number
BCNPCL @ bcnpcl @ RMF2004
Serial
566
Permanent link to this record
Author
Debora Gil; Petia Radeva
Title
A Regularized Curvature Flow Designed for a Selective Shape Restoration
Type
Journal Article
Year
2004
Publication
IEEE Transactions on Image Processing
Abbreviated Journal
Volume
13
Issue
Pages
1444–1458
Keywords
Geometric flows, nonlinear filtering, shape recovery.
Abstract
Among all filtering techniques, those based exclu- sively on image level sets (geometric flows) have proven to be the less sensitive to the nature of noise and the most contrast preserving. A common feature to existent curvature flows is that they penalize high curvature, regardless of the curve regularity. This constitutes a major drawback since curvature extreme values are standard descriptors of the contour geometry. We argue that an operator designed with shape recovery purposes should include a term penalizing irregularity in the curvature rather than its magnitude. To this purpose, we present a novel geometric flow that includes a function that measures the degree of local irregularity present in the curve. A main advantage is that it achieves non-trivial steady states representing a smooth model of level curves in a noisy image. Performance of our approach is compared to classical filtering techniques in terms of quality in the restored image/shape and asymptotic behavior. We empirically prove that our approach is the technique that achieves the best compromise between image quality and evolution stabilization.
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;MILAB
Approved
no
Call Number
BCNPCL @ bcnpcl @ GiR2004b
Serial
491
Permanent link to this record
Author
Oriol Rodriguez-Leor; J. Mauri; Eduard Fernandez-Nofrerias; M. Gomez; Antonio Tovar; L. Cano; C. Diego; Carme Julia; Vicente del Valle; Debora Gil; Petia Radeva
Title
Ecografia Intracoronaria: Segmentacio Automatica de area de la llum
Type
Journal
Year
2002
Publication
Revista Societat Catalana de Cardiologia
Abbreviated Journal
Volume
4
Issue
4
Pages
42
Keywords
Abstract
Address
Barcelona
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
XIVe Congres de la Societat Catalana de Cardiologia
Notes
MILAB;IAM
Approved
no
Call Number
BCNPCL @ bcnpcl @ RMF2002
Serial
435
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