|
|
Enric Marti, J. Rocarias, A. Sanchez, Petia Radeva, Ricardo Toledo, & Jordi Vitria. (2006). Caronte: una propuesta de entorno de gestion documental para asignaturas de Ingenieria Informatica.
|
|
|
|
Fernando Vilariño, Panagiota Spyridonos, Jordi Vitria, Fernando Azpiroz, & Petia Radeva. (2006). Cascade analysis for intestinal contraction detection. In 20th International Congress and exhibition Computer Assisted Radiology and Surgery (pp. 9–10).
Abstract: In this work, we address the study of intestinal contractions in a novel approach based on a machine learning framework to process data from Wireless Capsule Video Endoscopy. Wireless endoscopy represents a unique way to visualize the intestine motility by creating long videos to visualize intestine dynamics. In this paper we argue that to analyze huge amount of wireless endoscopy data and define robust methods for contraction detection we should base our approach on sophisticated machine learning techniques. In particular, we propose a cascade of classifiers in order to remove different physiological phenomenon and obtain the motility pattern of small intestines. Our results show obtaining high specificity and sensitivity rates that highlight the high efficiency of the selected approach and support the feasibility of the proposed methodology in the automatic detection and analysis of intestine contractions.
Keywords: intestine video analysis, anisotropic features, support vector machine, cascade of classifiers
|
|
|
|
Jaume Garcia, Debora Gil, Joel Barajas, Francesc Carreras, Sandra Pujades, & Petia Radeva. (2006). Characterization of ventricular torsion in healthy subjects using Gabor filters and a variational framework. In Proc. Computers in Cardiology (pp. 877–880).
Abstract: In this work, we present a fully automated method for tissue deformation estimation in tagged magnetic resonance images (TMRI). Gabor filter banks, tuned independently for each left ventricle level, provide optimally filtered complex images which phase remains constant along the cardiac cycle. This fact can be thought as the brightness constancy condition required by classical optical flow (OF) methods. Pairs of these filtered sequences, together with a variational formulation are used in a second step to obtain dense continuous deformation maps that we call Harmonic Phase Flow. This method has been used to determine reference values of ventricular torsion (VT) in a set of 8 healthy volunteers. The results encourage the use of VT as a useful parameter for ventricular function assessment in clinical routine.
|
|
|
|
Oriol Ramos Terrades, Salvatore Tabbone, & Ernest Valveny. (2006). Combination of shape descriptors using an adaptation of boosting.
|
|
|
|
Fadi Dornaika, Francisco Javier Orozco, & Jordi Gonzalez. (2006). Combined Head, Lips, Eyebrows, and Eyelids Tracking Using Adaptive Appearance Models. In IV Conference on Articulated Motion and Deformable Objects (AMDO´06), LNCS 4069: 110–119.
|
|
|
|
Michael Villamizar, A. Sanfeliu, & Juan Andrade. (2006). Computation of Rotation Local Invariant Features using the Integral Image for Real Time Object Detection.
|
|
|
|
Josep Llados. (2006). Computer Vision: Progress of Research and Development ( J. Llados(ed.), Ed.).
|
|
|
|
E. Pastor, A. Agueda, Juan Andrade, M. Muñoz, Y. Perez, & E. Planas. (2006). Computing the rate of spread of linear flame fronts by thermal image processing. Fire Safety Journal, 41(8):569–579.
|
|
|
|
Joel Barajas, Jaume Garcia, Karla Lizbeth Caballero, Francesc Carreras, Sandra Pujades, & Petia Radeva. (2006). Correction of Misalignment Artifacts Among 2-D Cardiac MR Images in 3-D Space. In 1st International Wokshop on Computer Vision for Intravascular and Intracardiac Imaging (CVII’06) (Vol. 3217, pp. 114–121). Copenhagen (Denmark).
Abstract: Cardiac Magnetic Resonance images offer the opportunity to study the heart in detail. One of the main issues in its modelling is to create an accurate 3-D reconstruction of the left ventricle from 2-D views. A first step to achieve this goal is the correct registration among the different image planes due to patient movements. In this article, we present an accurate method to correct displacement artifacts using the Normalized Mutual Information. Here, the image views are treated as planes in order to diminish the approximation error caused by the association of a certain thickness, and moved simultaneously to avoid any kind of bias in the alignment process. This method has been validated using real and syntectic plane displacements, yielding promising results.
|
|
|
|
Sergio Escalera, Oriol Pujol, & Petia Radeva. (2006). Decoding of Ternary Error Correcting Output Codes. In 11th Iberoamerican Congress on Pattern Recognition (CIARP´06), LNCS 4225: 753–763.
|
|
|
|
Oriol Pujol, Petia Radeva, & Jordi Vitria. (2006). Discriminant ECOC: A Heuristic Method for Application Dependent Design of Error Correcting Output Codes. IEEE Transactions on Pattern Analysis and Machine Intelligence, 28(6): 1007–1012.
|
|
|
|
Sergio Escalera, Oriol Pujol, & Petia Radeva. (2006). ECOC-ONE: A novel coding and decoding strategy.
|
|
|
|
Angel Sappa, & Boris X. Vintimilla. (2006). Edge Point Linking by Means of Global and Local Schemes. In IEEE Int. Conf. on Signal-Image Technology and Internet-Based Systems, Hammamet, Tunisia, December 2006, pp. 551-560..
|
|
|
|
Ivan Huerta, Dani Rowe, Jordi Gonzalez, & Juan J. Villanueva. (2006). Efficient Incorporation of Motionless Foreground Objects for Adaptive Background Segmentation. In IV Conference on Articulated Motion and Deformable Objects (AMDO´06), LNCS 4069: 424–433.
|
|
|
|
Jordi Gonzalez, Dani Rowe, Juan Andrade, & Juan J. Villanueva. (2006). Efficient Management of Multiple Agent Tracking Through Observation Handling.
|
|
