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Author |
Ricardo Toledo; X. Orriols; X. Binefa; Petia Radeva; Jordi Vitria; Juan J. Villanueva |
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Tracking Elongated Structures using Statistical Snakes. |
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2000 |
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Computer Vision and Pattern Recognition CVPR´00, 1:157–162. |
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OR;MILAB;ADAS;MV |
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BCNPCL @ bcnpcl @ TOB2000 |
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339 |
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Javier Varona; Jordi Gonzalez; Xavier Roca; Juan J. Villanueva |
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Title |
Appearance Tracking for Video Surveillance |
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2003 |
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ISE @ ise @ VGR2003a |
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358 |
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Jordi Gonzalez; Javier Varona; Xavier Roca; Juan J. Villanueva |
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Title |
Automatic Keyframing of Human Actions for Computer Animation |
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2003 |
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ISE @ ise @ GVR2003a |
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359 |
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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 |
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142 |
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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 @ iam @ And2009 |
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1667 |
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Author |
Jordi Gonzalez |
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Title |
Human Sequence Evaluation: the Key-frame Approach |
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2004 |
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PhD Thesis, Universitat Autonoma de Barcelona-CVC |
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Ph.D. thesis |
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Xavier Roca;Javier Varona |
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ISE @ ise @ Gon2004 |
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362 |
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Author |
M. Bressan; David Guillamet; Jordi Vitria |
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Title |
Using an ICA Representation of Local Color Histograms for Object Recognition |
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2003 |
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Pattern Recognition, 36(3):691–701 (IF: 1.611) |
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OR;MV |
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BCNPCL @ bcnpcl @ BGV2003 |
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365 |
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M. Bressan; Jordi Vitria |
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Title |
Independent Feature Selection |
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2003 |
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IEEE Transactions on Pattern Analysis and Machine Intelligence, 25(10): 1312–1317 (IF: 3.823) |
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OR;MV |
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BCNPCL @ bcnpcl @ BrV2003a |
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366 |
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Author |
M. Bressan; Jordi Vitria |
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Title |
Nonparametric Discriminant Analysis and Nearest Neighbor Classification |
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2003 |
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Pattern Recognition Letters |
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24 |
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15 |
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2743–2749 |
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IF: 0.809 |
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OR;MV |
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BCNPCL @ bcnpcl @ BrV2003b |
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367 |
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Author |
Cristina Cañero; Petia Radeva |
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Title |
Vesselness enhancement diffusion |
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2003 |
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Pattern Recognition Letters |
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PRL |
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24 |
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16 |
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3141–3151 |
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IF: 0.809 |
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BCNPCL @ bcnpcl @ CaR2003 |
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371 |
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Author |
Maya Dimitrova; N. Kushmerick; Petia Radeva; Juan J. Villanueva |
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Title |
User Assesment of a Visual Genre Classifier |
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2003 |
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Proceedings of the 3rd IASTED Int. Conference Visualization, Imaging and Image Processing |
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MILAB |
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BCNPCL @ bcnpcl @ DKR2003 |
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372 |
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Maya Dimitrova; Ch. Roumenin; Petia Radeva; David Rotger; Juan J. Villanueva |
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Title |
Multimodal Intelligent System for Cardiovascular Diagnosis |
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2003 |
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Automation and Informatics, any XXXVII, num. 3 |
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BCNPCL @ bcnpcl @ DRR2003 |
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374 |
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Author |
David Guillamet; B. Moghaddam; Jordi Vitria |
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Title |
Higher-Order Dependencies in Local Appearance Models |
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2003 |
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IEEE International Conference on Image Processing (ICIP) |
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OR;MV |
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BCNPCL @ bcnpcl @ GMV2003b |
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377 |
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Author |
David Guillamet; Jordi Vitria |
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Title |
Evaluation of distance metrics for recognition based on non-negative matrix factorization |
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2003 |
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Pattern Recognition Letters |
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24 |
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9-10 |
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1599 –1605 |
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IF: 0.809 |
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OR;MV |
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BCNPCL @ bcnpcl @ GuV2003b |
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380 |
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David Guillamet; Jordi Vitria; B. Shiele |
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Introducing a weighted non-negative matrix factorization for image classification |
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2003 |
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Pattern Recognition Letters |
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24 |
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14 |
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2447–2454 |
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IF: 0.809 |
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OR;MV |
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BCNPCL @ bcnpcl @ GVS2003 |
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382 |
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Jordi Gonzalez; Javier Varona; Xavier Roca; Juan J. Villanueva |
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A Human Action Comparison Framework for Motion Understanding |
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2003 |
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Frontiers in Artificial Intelligence and Applications 100, 331–340 |
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ISE @ ise @ GVR2003c |
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