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Fadi Dornaika, & Franck Davoine. (2006). Facial expression recognition using auto-regressive models.
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Michael Villamizar, A. Sanfeliu, & Juan Andrade. (2006). Computation of Rotation Local Invariant Features using the Integral Image for Real Time Object Detection.
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Josep Llados. (2006). Computer Vision: Progress of Research and Development ( J. Llados(ed.), Ed.).
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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.
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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
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Fadi Dornaika, & Angel Sappa. (2006). 3D Face Tracking using Appearance Registration and Robust Iterative Closest Point Algorithm. In 21st International Symposium on Computer and Information Sciences (ISCIS´06), LNCS 4263: 532–541.
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Mikhail Mozerov, Ignasi Rius, Xavier Roca, & Jordi Gonzalez. (2006). 3D Human Motion Sequences Synchronization Using Dense Matching Algorithm. In 28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 485–494, ISBN 978–3–540–44412–1.
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Dani Rowe, I. Reid, Jordi Gonzalez, & Juan J. Villanueva. (2006). Unconstrained Multiple-People Tracking. In 28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 505–514, ISBN 978–3–540–44412–1.
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Mikhail Mozerov. (2006). An Effective Stereo Matching Algorithm with Optimal Path Cost Aggregation. In 28th Annual Symposium of the German Association for Pattern Recognition, LNCS 4174: 617–626.
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Xavier Otazu, & Maria Vanrell. (2006). Several lightness induction effects with a computational multiresolution wavelet framework. 29th European Conference on Visual Perception (ECVP’06), Perception Suppl s, 32: 56–56.
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Joan Mas, B. Lamiroy, Gemma Sanchez, & Josep Llados. (2006). Automatic Learning of Symbol Descriptions Avoiding Topological Ambiguities.
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Jose Antonio Rodriguez, Gemma Sanchez, & Josep Llados. (2006). Automatic Interpretation of Proofreading Sketches.
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David Geronimo, Angel Sappa, Antonio Lopez, & Daniel Ponsa. (2006). Pedestrian Detection Using AdaBoost Learning of Features and Vehicle Pitch Estimation.
Abstract: In this paper we propose a combination of different Haar filter sets and Edge Orientation Histograms (EOH) in order to learn a model for pedestrian detection. As we will show, with the addition of EOH we obtain better ROCs than using Haar filters alone. Hence, a model consisting of discriminant features, selected by AdaBoost, is applied at pedestrian-sized image windows in order to perform
the classification. Additionally, taking into account the final application, a driver assistance system with realtime requirements, we propose a novel stereo-based camera pitch estimation to reduce the number of explored windows.
With this approach, the system can work in urban roads, as will be illustrated by current results.
Keywords: ADAS, pedestrian detection, adaboost learning, pitch estimation, haar wavelets, edge orientation histograms.
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Jordi Gonzalez, Dani Rowe, Juan Andrade, & Juan J. Villanueva. (2006). Efficient Management of Multiple Agent Tracking Through Observation Handling.
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Francisco Javier Orozco, Pau Baiget, Jordi Gonzalez, & Xavier Roca. (2006). Eyelids and Face Tracking in Real-Time.
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