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Ignasi Rius, Dani Rowe, Jordi Gonzalez, & Xavier Roca. (2005). A 3D Dynamic Model of Human Actions for Probabilistic Image Tracking. In Pattern Recognition and Image Analysis (IbPRIA 2005), LNCS 3522: 529–536.
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Dani Rowe, Ignasi Rius, Jordi Gonzalez, Xavier Roca, & Juan J. Villanueva. (2005). Probabilistic Image-Based Tracking: Improving Particle Filtering. In Pattern Recognition and Image Analysis (IbPRIA 2005), LNCS 3522: 85–92.
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Dani Rowe, Ivan Huerta, Jordi Gonzalez, & Juan J. Villanueva. (2007). Robust Multiple-People Tracking Using Colour-Based Particle Filters. In 3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120.
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Ignasi Rius, Jordi Gonzalez, J. Varona, & Xavier Roca. (2009). Action-specific motion prior for efficient bayesian 3D human body tracking. PR - Pattern Recognition, 42(11), 2907–2921.
Abstract: In this paper, we aim to reconstruct the 3D motion parameters of a human body
model from the known 2D positions of a reduced set of joints in the image plane.
Towards this end, an action-specific motion model is trained from a database of real
motion-captured performances. The learnt motion model is used within a particle
filtering framework as a priori knowledge on human motion. First, our dynamic
model guides the particles according to similar situations previously learnt. Then, the solution space is constrained so only feasible human postures are accepted as valid solutions at each time step. As a result, we are able to track the 3D configuration of the full human body from several cycles of walking motion sequences using only the 2D positions of a very reduced set of joints from lateral or frontal viewpoints.
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Dani Rowe, Jordi Gonzalez, Marco Pedersoli, & Juan J. Villanueva. (2010). On Tracking Inside Groups. MVA - Machine Vision and Applications, 21(2), 113–127.
Abstract: This work develops a new architecture for multiple-target tracking in unconstrained dynamic scenes, which consists of a detection level which feeds a two-stage tracking system. A remarkable characteristic of the system is its ability to track several targets while they group and split, without using 3D information. Thus, special attention is given to the feature-selection and appearance-computation modules, and to those modules involved in tracking through groups. The system aims to work as a stand-alone application in complex and dynamic scenarios. No a-priori knowledge about either the scene or the targets, based on a previous training period, is used. Hence, the scenario is completely unknown beforehand. Successful tracking has been demonstrated in well-known databases of both indoor and outdoor scenarios. Accurate and robust localisations have been yielded during long-term target merging and occlusions.
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Ignasi Rius, Jordi Gonzalez, Mikhail Mozerov, & Xavier Roca. (2008). Automatic Learning of 3D Pose Variability in Walking Performances for Gait Analysis. International Journal for Computational Vision and Biomechanics, 33–43.
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Dani Rowe, Jordi Gonzalez, Ivan Huerta, & Juan J. Villanueva. (2007). On Reasoning over Tracking Events. In 15th Scandinavian Conference on Image Analysis (Vol. 4522, 502–511). LNCS.
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A. Pujol, H. Wechsler, & Juan J. Villanueva. (2001). Learning and Caricaturing the Face Space Using Self-Organization and Hebbian Learning for Face Processing..
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A. Pujol, Juan J. Villanueva, & H. Wechsler. (2000). Automatic View Based Caricaturing. In 15 th International Conference on Pattern Recognition (Vol. 1, pp. 1072–1075).
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Francisco Jose Perales, Juan J. Villanueva, & Yuhua Luo. (1991). An automatic two-camera human motion perception system based on biomechanical model matching. In IEEE International Conference on Systems, Man and Cybernetics (Vol. 2, pp. 856–858).
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A. Pujol, Juan J. Villanueva, & Jose Luis Alba. (2001). Efficient Computation of Face Shape Similarity Using Distance Transform Eigendecomposition and Valleys..
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