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Author |
Alex Caralps |
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Title |
Estudi de viabilitat per la inspeccio automatica de cintes elastiques amb silicona |
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2000 |
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CVC Technical Report #45 |
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Admin @ si @ Car2000 |
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346 |
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Author |
C. Padres |
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Title |
Aplicaciones al modelo de formas activas para un entorno aumentado |
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2000 |
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CVC Technical Report #46 |
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Admin @ si @ Pad2000 |
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347 |
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Author |
E. Ceron |
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Title |
Programacion visual de tareas de pick and place: modulo de vision 3D |
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2000 |
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CVC Technical Report #47 |
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Admin @ si @ Cer2000 |
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348 |
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Author |
M. Bressan |
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Title |
Independent modes of variation in Point Distribution models |
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2000 |
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CVC Technical Report #48 |
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Admin @ si @ Bre2000 |
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349 |
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Author |
Gemma Sanchez; Josep Llados; K. Tombre |
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Title |
A mean string algorithm to compute the average among a set of 2D shapes |
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2000 |
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CVC Technical Report #38 |
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DAG |
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DAG @ dag @ SLT2000 |
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350 |
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Author |
Jordi Gonzalez |
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Title |
Action recognition in application domains |
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1999 |
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CVC Technical Report #13 |
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ISE @ ise @ Gon1999 |
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357 |
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Author |
Albert Andaluz |
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Title |
LV Contour Segmentation in TMR images using Semantic Description of Tissue and Prior Knowledge Correction |
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2009 |
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CVC Technical Report |
Abbreviated Journal |
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142 |
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Keywords |
Active Contour Models; Snakes; Active Shape Models; Deformable Templates; Left Ventricle Segmentation; Generalized Orthogonal Procrustes Analysis; Harmonic Phase Flow; Principal Component Analysis; Tagged Magnetic Resonance |
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Abstract |
The Diagnosis of Left Ventricle (LV) pathologies is related to regional wall motion analysis. Health indicator scores such as the rotation and the torsion are useful for the diagnose of the Left Ventricle (LV) function. However, this requires proper identification of LV segments. On one hand, manual segmentation is robust, but it is slow and requires medical expertise. On the other hand, the tag pattern in Tagged Magnetic Resonance (TMR) sequences is a problem for the automatic segmentation of the LV boundaries. Consequently, we propose a method based in the classical formulation of parametric Snakes, combined with Active Shape models. Our semantic definition of the LV is tagged tissue that experiences motion in the systolic cycle. This defines two energy potentials for the Snake convergence. Additionally, the mean shape corrects excessive deviation from the anatomical shape. We have validated our approach in 15 healthy volunteers and two short axis cuts. In this way, we have compared the automatic segmentations to manual shapes outlined by medical experts. Also, we have explored the accuracy of clinical scores computed using automatic contours. The results show minor divergence in the approximation and the manual segmentations as well as robust computation of clinical scores in all cases. From this we conclude that the proposed method is a promising support tool for clinical analysis. |
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Master's thesis |
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Bellaterra 08193, Barcelona, Spain |
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IAM; |
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IAM @ iam @ And2009 |
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1667 |
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Author |
Carme Julia |
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Title |
Motion segmentation through factorization. Application to night driving assistance |
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2004 |
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CVC Technical Report #79 |
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Admin @ si @ 38169 |
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506 |
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Author |
Raul Chaves |
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Title |
Sistema de identificacion mediante huellas dactilares |
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2004 |
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CVC Technical Report #81 |
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Admin @ si @ Cha2004 |
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507 |
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Author |
Oriol Martinez |
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Title |
Semantic Retrieval of Memory Color Content |
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2004 |
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CVC Technical Report #80 |
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Admin @ si @ 38047 |
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508 |
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Author |
Jaume Amores; Petia Radeva |
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Title |
Registration and retrieval of medical images. Application to IVUS |
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2004 |
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CVC Technical Report #77 |
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MILAB |
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ADAS @ adas @ AmR2004 |
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513 |
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Author |
Oriol Ramos Terrades |
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Title |
Descripcio i classificacio de simbols tecnics usant la transformada de crestetes |
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2003 |
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CVC Technical Report #74 |
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DAG @ dag @ Ram2003 |
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517 |
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Author |
David Alcalde |
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Title |
Image classification in terms of rotation-invariant pattern matching |
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2003 |
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CVC Technical Report #73 |
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Admin @ si @ Alc2003 |
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518 |
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Author |
David Masip |
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Title |
Dimensionality reduction techniques applied to nearest neighbor classification |
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2003 |
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CVC Technical Report #72 |
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OR;MV |
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Admin @ si @ Mas2003 |
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519 |
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Author |
Misael Rosales; Petia Radeva |
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Empirical simulation model of intravascular ultrasound |
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2003 |
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CVC Technical Report #71 |
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MILAB |
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BCNPCL @ bcnpcl @ RoR2003 |
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520 |
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