Records |
Author |
Oriol Rodriguez-Leor; Debora Gil; Eduard Fernandez-Nofrerias; H. Tizon; S. Montserrat; Vicente del Valle; J. Mauri |
Title |
Caracterització de la Perfusió Miocàrdica mitjançant anàlisi estadístic de l espectre en l angiografia de contrast |
Type |
Conference Article |
Year |
2007 |
Publication |
XIX Congrés de la Societat Catalana de Cardiologia de Barcelona |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
130 |
Keywords |
|
Abstract |
La valoració de la integritat de la microcirculació coronària aporta informació pronòstica en pacients amb infart agut de miocardi en els que es realitza angioplastia primària. Aquesta valoració és subjectiva i presenta una important variabilitat si no es duta a terme per personal experimentat. Presentem una eina d’anàlisi d’imatge que permet fer una valoració de la microcirculació coronària a partir de seqüències d’angiografia. Hem analitzat les variacions locals en el nivell de gris de la imatge durant la seqüència angiogràfica. Hem identificat els principals fenòmens observats (respiració, batec cardíac, tinció arterial, tinció miocàrdica i soroll radiològic) mitjançant un anàlisi estadístic de l’espectre de Fourier de l’evolució al llarg del temps de la mitja local. Aquest mateix anàlisis permet determinat la influència de cadascun d’ells en la extracció del patró de tinció i selecciona la respiració com el fenomen que més distorsiona el patró de tinció original. Els descriptors proposats s’obtenen fora del rang espectral respiratori. Hem testat la seva capacitat per a detectar els tres fenòmens principals (tinció miocàrdica (MS), tinció arterial (AS) i soroll (NS)) independentment de la respiració. La capacitat de discriminació dels descriptors ha estat valorada mitjançant un mètode de crossvalidation en 30 seqüències d’angiografia. Els descriptors emprats permeten caracteritzar la tinció miocàrdica amb una alta eficiència i fiabilitat. A més no hi ha diferències significatives en l’anàlisi de les seqüències obtingudes amb el pacient respirant amb normalitat o en apnea |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Barcelona (Spain) |
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 |
Approved |
no |
Call Number |
IAM @ iam @ RGF2007 |
Serial |
1639 |
Permanent link to this record |
|
|
|
Author |
Oriol Rodriguez-Leor; Debora Gil; Eduard Fernandez-Nofrerias |
Title |
Analisis en los cambios en el nivel de gris en las secuencias angiograficas mediante descriptores estadisticos para determinar la perfusion miocardica |
Type |
Journal Article |
Year |
2006 |
Publication |
Revista Española de Cardiología |
Abbreviated Journal |
REC |
Volume |
59 Supl 2-166 |
Issue |
2 |
Pages |
128 |
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; |
Approved |
no |
Call Number |
IAM @ iam @ RGF2006 |
Serial |
1640 |
Permanent link to this record |
|
|
|
Author |
Oriol Rodriguez-Leor; Carlo Gatta; E. Fernandez-Nofrerias; Oriol Pujol; Neus Salvatella; C. Bosch; H. Tizon; Petia Radeva; J. Mauri |
Title |
Computationally Efficient Image-based IVUS Pullbacks Gating |
Type |
Journal |
Year |
2008 |
Publication |
European Heart Journal, ESC Supplement, Munich, 2008, p. 775 |
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 |
MILAB;HuPBA |
Approved |
no |
Call Number |
BCNPCL @ bcnpcl @ RGF2008 |
Serial |
1036 |
Permanent link to this record |
|
|
|
Author |
Oriol Rodriguez-Leor; A. Carol; H. Tizon; Eduard Fernandez-Nofrerias; J. Mauri; Vicente del Valle; Debora Gil; Aura Hernandez-Sabate; Petia Radeva |
Title |
Model estadístic-determinístic per la segmentació de l adventicia en imatges d ecografía intracoronaria |
Type |
Journal Article |
Year |
2005 |
Publication |
Rev Societat Catalana Cardiologia |
Abbreviated Journal |
|
Volume |
5 |
Issue |
|
Pages |
41 |
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;MILAB |
Approved |
no |
Call Number |
IAM @ iam @ RCT2005 |
Serial |
1637 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Salvatore Tabbone; L. Wendling; Ernest Valveny |
Title |
Symbol Recognition based on a Multiresolution Analysis of the Radon Transform |
Type |
Miscellaneous |
Year |
2004 |
Publication |
The International Workshop on Multidisciplinary Image, Video, and Audio Retrieval and Mining |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
|
Keywords |
|
Abstract |
|
Address |
Sherbrooke (Canada) |
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 |
Approved |
no |
Call Number |
DAG @ dag @ RTW2004 |
Serial |
500 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Salvatore Tabbone; Ernest Valveny |
Title |
Combination of shape descriptors using an adaptation of boosting |
Type |
Miscellaneous |
Year |
2006 |
Publication |
18th International Conference on Pattern Recognition (ICPR´06), 2: 764–767 |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
|
Keywords |
|
Abstract |
|
Address |
Hong Kong |
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 |
Approved |
no |
Call Number |
DAG @ dag @ RTV2006 |
Serial |
718 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Salvatore Tabbone; Ernest Valveny |
Title |
A Review of Shape Descriptors for Document Analysis |
Type |
Conference Article |
Year |
2007 |
Publication |
9th International Conference on Document Analysis and Recognition |
Abbreviated Journal |
|
Volume |
1 |
Issue |
|
Pages |
227–231 |
Keywords |
|
Abstract |
|
Address |
Curitiba (Brazil) |
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 |
ICDAR |
Notes |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RTV2007b |
Serial |
884 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Salvatore Tabbone; Ernest Valveny |
Title |
Optimal Linear Combination for Two-class Classifiers |
Type |
Conference Article |
Year |
2007 |
Publication |
Proceedings of the International Conference on Advances in Pattern Recognition |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
|
Keywords |
|
Abstract |
|
Address |
Kolkata (India) |
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 |
ICAPR |
Notes |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RTV2007a |
Serial |
894 |
Permanent link to this record |
|
|
|
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 |
|
Volume |
7534 |
Issue |
|
Pages |
75340Q–75340Q–10 |
Keywords |
|
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. |
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 |
DRR |
Notes |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ TSG2010 |
Serial |
1479 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny; Salvatore Tabbone |
Title |
On the Combination of Ridgelets Descriptors for Symbol Recognition |
Type |
Conference Article |
Year |
2007 |
Publication |
Seventh IAPR International Workshop on Graphics Recognition |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
18–20 |
Keywords |
|
Abstract |
|
Address |
Curitiba (Brazil) |
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 |
GREC |
Notes |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RVT2007 |
Serial |
886 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny; Salvatore Tabbone |
Title |
On the Combination of Ridgelets Descriptors for Symbol Recognition |
Type |
Book Chapter |
Year |
2008 |
Publication |
Graphics Recognition: Recent Advances and New Oportunities, W. Lius, J. Llados, J.M. Ogier, LNCS 5046:104–113 |
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 |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RVT2008 |
Serial |
984 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny; Salvatore Tabbone |
Title |
Optimal Classifier Fusion in a Non-Bayesian Probabilistic Framework |
Type |
Journal Article |
Year |
2009 |
Publication |
IEEE Transactions on Pattern Analysis and Machine Intelligence |
Abbreviated Journal |
TPAMI |
Volume |
31 |
Issue |
9 |
Pages |
1630–1644 |
Keywords |
|
Abstract |
The combination of the output of classifiers has been one of the strategies used to improve classification rates in general purpose classification systems. Some of the most common approaches can be explained using the Bayes' formula. In this paper, we tackle the problem of the combination of classifiers using a non-Bayesian probabilistic framework. This approach permits us to derive two linear combination rules that minimize misclassification rates under some constraints on the distribution of classifiers. In order to show the validity of this approach we have compared it with other popular combination rules from a theoretical viewpoint using a synthetic data set, and experimentally using two standard databases: the MNIST handwritten digit database and the GREC symbol database. Results on the synthetic data set show the validity of the theoretical approach. Indeed, results on real data show that the proposed methods outperform other common combination schemes. |
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 |
0162-8828 |
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RVT2009 |
Serial |
1220 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny |
Title |
Line Detection Using Ridgelets Transform for Graphic Symbol Representation |
Type |
Miscellaneous |
Year |
2003 |
Publication |
In Pattern Recognition and Image Analysis, Lecture Notes in Computer Science 2652:829–837 |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
|
Keywords |
|
Abstract |
|
Address |
Springer-Verlag |
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 |
Approved |
no |
Call Number |
DAG @ dag @ RaV2003a |
Serial |
403 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny |
Title |
Indexing Technical Symbols Using Ridgelets Transform |
Type |
Miscellaneous |
Year |
2003 |
Publication |
Proceedings of the Fifth International Workshop on Graphics Recognition (GREC´03), 202–211 |
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 |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RaV2003c |
Serial |
405 |
Permanent link to this record |
|
|
|
Author |
Oriol Ramos Terrades; Ernest Valveny |
Title |
Radon Transform for Lineal Symbol Representation |
Type |
Miscellaneous |
Year |
2003 |
Publication |
Proceedings of the Seventh International Conference on Document Analysis and Recognition (ICDAR´03), 195–199 |
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 |
DAG |
Approved |
no |
Call Number |
DAG @ dag @ RaV2003d |
Serial |
406 |
Permanent link to this record |