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Author |
C. Santa-Marta; Jaume Garcia; A. Bajo; J.J. Vaquero; M. Ledesma-Carbayo; Debora Gil |
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Title |
Influence of the Temporal Resolution on the Quantification of Displacement Fields in Cardiac Magnetic Resonance Tagged Images |
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2008 |
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XXVI Congreso Anual de la Sociedad Española de Ingenieria Biomedica |
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352–353 |
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It is difficult to acquire tagged cardiac MR images with a high temporal and spatial resolution using clinical MR scanners. However, if such images are used for quantifying scores based on motion, it is essential a resolution as high as possibl e. This paper explores the influence of the temporal resolution of a tagged series on the quantification of myocardial dynamic parameters. To such purpose we have designed a SPAMM (Spatial Modulation of Magnetization) sequence allowing acquisition of sequences at simple and double temporal resolution. Sequences are processed to compute myocardial motion by an automatic technique based on the tracking of the harmonic phase of tagged images (the Harmonic Phase Flow, HPF). The results have been compared to manual tracking of myocardial tags. The error in displacement fields for double resolution sequences reduces 17%. |
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Valladolid |
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Roberto hornero, Saniel Abasolo |
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CASEIB |
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IAM; |
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IAM @ iam @ SGB2008 |
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1033 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Facial Expression Recognition for HCI Applications |
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Year |
2008 |
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Encyclopedia of Artificial Intelligence |
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II |
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625–631 |
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IGI–Global Publisher |
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Rabuñal |
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OR;MV |
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BCNPCL @ bcnpcl @ DoR2008c |
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1034 |
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Author |
Bogdan Raducanu; Fadi Dornaika |
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Title |
Dynamic Vs. Static Recognition of Facial Expressions |
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2008 |
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Ambient Intelligence. European Conference |
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5355 |
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13–25 |
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Nuremberg (Germany) |
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Rabuñal |
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OR; MV |
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BCNPCL @ bcnpcl @ RaD2008 |
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1035 |
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Author |
O. Rodriguez-Leor; Carlo Gatta; E Fernandez-Nofrerias; Oriol Pujol; Neus Salvatella; C. Bosch; H. Tizon; Petia Radeva; J. Mauri |
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Title |
Computationally Efficient Image-based IVUS Pullbacks Gating |
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2008 |
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European Heart Journal, ESC Supplement, Munich, 2008, p. 775 |
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MILAB;HuPBA |
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BCNPCL @ bcnpcl @ RGF2008 |
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1036 |
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Author |
Carlo Gatta; Oriol Pujol; O. Rodriguez-Leor; J. Mauri; Petia Radeva |
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Title |
Robust Image-based IVUS Pullbacks Gating |
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Book Chapter |
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2008 |
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Proceedings 11th International ConferenceMedical Image Computing and Computer–Assisted Intervention |
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5242 |
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518–525 |
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NY (USA) |
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MICCAI |
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MILAB;HuPBA |
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BCNPCL @ bcnpcl @ GPR2008a |
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1037 |
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Author |
Carlo Gatta; Oriol Pujol; O. Rodriguez-Leor; Josefina Mauri; Petia Radeva |
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Title |
Improved Rigid Registration of Vessel Structures using the Fast Radial Symmetry Transform |
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Conference Article |
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2008 |
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Computer Vision for Intravascular Imaging CVII’08 Workshop Medical Image Computing and Computer–Assisted Intervention , 11th International Conference |
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128–136 |
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NY (USA) |
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MICCAI |
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MILAB;HUPBA |
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BCNPCL @ bcnpcl @ GPR2008b |
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1038 |
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Author |
C. Malagelada; Fosca De Iorio; Fernando Azpiroz; Anna Accarino; Santiago Segui; Petia Radeva; Juan R. Malagelada |
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Title |
New Insight Into Intestinal Motor Function via Noninvasive Endoluminal Image Analysis |
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2008 |
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Gastroenterology |
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135 |
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4 |
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1155–1162 |
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MILAB |
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BCNPCL @ bcnpcl @ MDA2008 |
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1040 |
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Author |
Sergio Escalera; Oriol Pujol; J. Mauri; Petia Radeva |
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Title |
IVUS Tissue Characterization with Sub-class Error-correcting Output Codes |
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Conference Article |
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2008 |
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Computer Vision and Pattern Recognition Workshops, 2008. CVPR Workshops 2008. IEEE Computer Society Conference on, pp. 1–8, 23–28 juny 2008. |
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Intravascular ultrasound (IVUS) represents a powerful imaging technique to explore coronary vessels and to study their morphology and histologic properties. In this paper, we characterize different tissues based on Radio Frequency, texture-based, slope-based, and combined features. To deal with the classification of multiple tissues, we require the use of robust multi-class learning techniques. In this context, we propose a strategy to model multi-class classification tasks using sub-classes information in the ECOC framework. The new strategy splits the classes into different subsets according to the applied base classifier. Complex IVUS data sets containing overlapping data are learnt by splitting the original set of classes into sub-classes, and embedding the binary problems in a problem-dependent ECOC design. The method automatically characterizes different tissues, showing performance improvements over the state-of-the-art ECOC techniques for different base classifiers and feature sets. |
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CVPR |
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MILAB;HuPBA |
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BCNPCL @ bcnpcl @ EPM2008 |
Serial |
1041 |
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Author |
Sergio Escalera; Oriol Pujol; Eric Laciar; Jordi Vitria; Esther Pueyo; Petia Radeva |
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Title |
Coronary Damage Classification of Patients with the Chagas Disease with Error-Correcting Output Codes |
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Conference Article |
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Year |
2008 |
Publication |
Intelligent Systems, 4th International IEEE Conference, 6–8 setembre 2008. |
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2 |
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12–17 |
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The Chagaspsila disease is endemic in all Latin America, affecting millions of people in the continent. In order to diagnose and treat the Chagaspsila disease, it is important to detect and measure the coronary damage of the patient. In this paper, we analyze and categorize patients into different groups based on the coronary damage produced by the disease. Based on the features of the heart cycle extracted using high resolution ECG, a multi-class scheme of error-correcting output codes (ECOC) is formulated and successfully applied. The results show that the proposed scheme obtains significant performance improvements compared to previous works and state-of-the-art ECOC designs. |
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Varna (Bulgaria) |
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IS’08 |
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MILAB; OR;HuPBA;MV |
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BCNPCL @ bcnpcl @ EPL2008 |
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1042 |
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Author |
Agata Lapedriza; David Masip; Jordi Vitria |
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Title |
On the Use of Independent Tasks for Face Recognition |
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2008 |
Publication |
IEEE Computer Society Conference on Computer Vision and Pattern Recognition |
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1–6 |
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OR; MV |
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BCNPCL @ bcnpcl @ LMV2008b |
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1043 |
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Author |
Carme Julia; Angel Sappa; Felipe Lumbreras; Joan Serrat; Antonio Lopez |
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Title |
An Adapted Alternation Approach for Recommender Systems |
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2008 |
Publication |
IEEE International Conference on e–Business Engineering, |
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128–135 |
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This paper presents an adaptation of the alternation technique to tackle the prediction task in recommender systems. These systems are widely considered in electronic commerce to help customers to find products they will probably like or dislike. As the SVD-based approaches, the proposed adapted alternation technique uses all the information stored in the system to find the predictions. The main advantage of this technique with respect to the SVD-based ones is that it can deal with missing data. Furthermore, it has a smaller computational cost. Experimental results with public data sets are provided in order to show the viability of the proposed adapted alternation approach. |
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Xi’an (Xina) |
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ADAS |
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ADAS @ adas @ JSL2008e |
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1044 |
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Author |
Jose Manuel Alvarez; Antonio Lopez; Ramon Baldrich |
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Title |
Illuminant Invariant Model-Based Road Segmentation |
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2008 |
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IEEE Intelligent Vehicles Symposium, |
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1155–1180 |
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road detection |
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Eindhoven (The Netherlands) |
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ADAS @ adas @ ALB2008 |
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1045 |
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Author |
Fadi Dornaika; Angel Sappa |
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Improving Appearance-Based 3D Face Tracking Using Sparse Stereo Data |
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2007 |
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Advances in Computer Graphics and Computer Vision, |
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354–366 |
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J. Braz, A. Ranchordas, H. Araujo and J. Jorge, |
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VISAPP |
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ADAS @ adas @ DoS2007d |
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1046 |
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Partha Pratim Roy; Umapada Pal; Josep Llados |
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Multi-oriented English Text Line Extraction using Background and Foreground Information |
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2008 |
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Proceedings of the 8th IAPR International Workshop on Document Analysis Systems, |
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315–322 |
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Nara (Japo) |
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1047 |
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Partha Pratim Roy; Umapada Pal; Josep Llados |
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Title |
Morphology Based Handwritten Line Segmentation using Foreground and Background Information |
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2008 |
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International Conference on Frontiers in Handwriting Recognition, |
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241–246 |
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Montreal (Canada) |
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ICFHR |
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DAG @ dag @ RPL2008a |
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1050 |
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