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Gemma Sanchez; Josep Llados; K. Tombre |
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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 @ dag @ SLT2000 |
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Author |
J. Mauri; E Fernandez-Nofrerias; E. Esplugas; A. Cequier; David Rotger; Ricardo Toledo; Petia Radeva; ; Juan J. Villanueva |
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Ecografia Intracoronaria: Navegacion Informatica por el cubo de datos de las imagenes. |
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2000 |
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Congreso de la Sociedad Española de Cardiologia. |
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Granada. |
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MILAB;ADAS |
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BCNPCL @ bcnpcl @ MNE2000 |
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356 |
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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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X. 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; X. 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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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 |
Jordi Gonzalez; X. Varona; Xavier Roca; Juan J. Villanueva |
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Title |
A Human Action Comparison Framework for Motion Understanding |
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2003 |
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Palma de Mallorca, Spain |
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ISE |
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ISE @ ise @ GVR2003e |
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361 |
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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 |
Jaume Amores; Petia Radeva |
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Title |
Non-rigid Registration of Vessel Structures in IVUS Images |
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2003 |
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In Pattern Recognition and Image Analysis, Lecture Notes in Computer Science. 2652:45–52 |
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Springer-Verlag |
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ADAS;MILAB |
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ADAS @ adas @ AmR2003 |
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363 |
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Jaume Amores; Petia Radeva |
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Title |
Elastic Matching and Retrieval of IVUS Images Using Contextual Information |
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2003 |
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6th Catalan Conference on Artificial Intelligence (CCIA 2003), 137–148 |
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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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BCNPCL @ bcnpcl @ BrV2003a |
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366 |
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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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BCNPCL @ bcnpcl @ BrV2003b |
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367 |
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Author |
Agnes Borras; Francesc Tous; Josep Llados; Maria Vanrell |
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Title |
High-Level Clothes Description Based on Color-Texture and Structural Features |
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2003 |
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Lecture Notes in Computer Science |
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2652 |
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108–116 |
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This work is a part of a surveillance system where content- based image retrieval is done in terms of people appearance. Given an image of a person, our work provides an automatic description of his clothing according to the colour, texture and structural composition of its garments. We present a two-stage process composed by image segmentation and a region-based interpretation. We segment an image by modelling it due to an attributed graph and applying a hybrid method that follows a split-and-merge strategy. We propose the interpretation of five cloth combinations that are modelled in a graph structure in terms of region features. The interpretation is viewed as a graph matching with an associated cost between the segmentation and the cloth models. Fi- nally, we have tested the process with a ground-truth of one hundred images. |
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Springer-Verlag |
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DAG;CIC |
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CAT @ cat @ BTL2003a |
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368 |
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Agnes Borras; Francesc Tous; Josep Llados; Maria Vanrell |
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High-Level Clothes Description Based on Colour-Texture and Structural Features |
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2003 |
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1rst. Iberian Conference on Pattern Recognition and Image Analysis IbPRIA 2003 |
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Palma de Mallorca |
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DAG;CIC |
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CAT @ cat @ BTL2003b |
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369 |
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