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Hugo Berti, Angel Sappa and Osvaldo Agamennoni. 2008. Improved Dynamic Window Approach by Using Lyapunov Stability Criteria.
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Joan Serrat, Ferran Diego and Felipe Lumbreras. 2008. Los faros delanteros a traves del objetivo.
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Carme Julia, Angel Sappa and Felipe Lumbreras. 2008. Aprendiendo a recrear la realidad en 3D.
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Sergio Vera, Debora Gil, Antonio Lopez and Miguel Angel Gonzalez Ballester. 2012. Multilocal Creaseness Measure.
Abstract: This document describes the implementation using the Insight Toolkit of an algorithm for detecting creases (ridges and valleys) in N-dimensional images, based on the Local Structure Tensor of the image. In addition to the filter used to calculate the creaseness image, a filter for the computation of the structure tensor is also included in this submission.
Keywords: Ridges, Valley, Creaseness, Structure Tensor, Skeleton,
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Enric Marti, J.Roncaries, Debora Gil, Aura Hernandez-Sabate, Antoni Gurgui and Ferran Poveda. 2015. PBL On Line: A proposal for the organization, part-time monitoring and assessment of PBL group activities.
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Aura Hernandez-Sabate, Meritxell Joanpere, Nuria Gorgorio and Lluis Albarracin. 2015. Mathematics learning opportunities when playing a Tower Defense Game.
Abstract: A qualitative research study is presented herein with the purpose of identifying mathematics learning opportunities in students between 10 and 12 years old while playing a commercial version of a Tower Defense game. These learning opportunities are understood as mathematicisable moments of the game and involve the establishment of relationships between the game and mathematical problem solving. Based on the analysis of these mathematicisable moments, we conclude that the game can promote problem-solving processes and learning opportunities that can be associated with different mathematical contents that appears in mathematics curricula, thought it seems that teacher or new game elements might be needed to facilitate the processes.
Keywords: Tower Defense game; learning opportunities; mathematics; problem solving; game design
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Gemma Rotger, Francesc Moreno-Noguer, Felipe Lumbreras and Antonio Agudo. 2019. Detailed 3D face reconstruction from a single RGB image.
Abstract: This paper introduces a method to obtain a detailed 3D reconstruction of facial skin from a single RGB image.
To this end, we propose the exclusive use of an input image without requiring any information about the observed material nor training data to model the wrinkle properties. They are detected and characterized directly from the image via a simple and effective parametric model, determining several features such as location, orientation, width, and height. With these ingredients, we propose to minimize a photometric error to retrieve the final detailed 3D map, which is initialized by current techniques based on deep learning. In contrast with other approaches, we only require estimating a depth parameter, making our approach fast and intuitive. Extensive experimental evaluation is presented in a wide variety of synthetic and real images, including different skin properties and facial
expressions. In all cases, our method outperforms the current approaches regarding 3D reconstruction accuracy, providing striking results for both large and fine wrinkles.
Keywords: 3D Wrinkle Reconstruction; Face Analysis, Optimization.
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