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David Masip. (2003). Dimensionality reduction techniques applied to nearest neighbor classification.
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David Alcalde. (2003). Image classification in terms of rotation-invariant pattern matching.
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Oriol Ramos Terrades. (2003). Descripcio i classificacio de simbols tecnics usant la transformada de crestetes.
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Debora Gil, & Petia Radeva. (2003). Curvature Vector Flow to Assure Convergent Deformable Models for Shape Modelling. In B. Springer (Ed.), Energy Minimization Methods In Computer Vision And Pattern Recognition (Vol. 2683, pp. 357–372). LNCS. Lisbon, PORTUGAL: Springer, Berlin.
Abstract: Poor convergence to concave shapes is a main limitation of snakes as a standard segmentation and shape modelling technique. The gradient of the external energy of the snake represents a force that pushes the snake into concave regions, as its internal energy increases when new inexion points are created. In spite of the improvement of the external energy by the gradient vector ow technique, highly non convex shapes can not be obtained, yet. In the present paper, we develop a new external energy based on the geometry of the curve to be modelled. By tracking back the deformation of a curve that evolves by minimum curvature ow, we construct a distance map that encapsulates the natural way of adapting to non convex shapes. The gradient of this map, which we call curvature vector ow (CVF), is capable of attracting a snake towards any contour, whatever its geometry. Our experiments show that, any initial snake condition converges to the curve to be modelled in optimal time.
Keywords: Initial condition; Convex shape; Non convex analysis; Increase; Segmentation; Gradient; Standard; Standards; Concave shape; Flow models; Tracking; Edge detection; Curvature
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Petia Radeva, & Jordi Vitria. (2003). “Inteligencia artificial” Centre de Visio per Computador.
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Oriol Rodriguez-Leor, J. Mauri, Eduard Fernandez-Nofrerias, C. Garcia, R. Villuendas, Vicente del Valle, et al. (2003). Reconstruction of a spatio-temporal model of the intima layer from intravascular ultrasound sequences. European Heart Journal, .
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Oriol Rodriguez-Leor, E. Fernandez-Nofrerias, J. Mauri, C. Garcia, R. Villuendas, V. Valle, et al. (2003). Intravascular ultrasound segmentation using local binary patterns. European Heart Journal (IF: 5.997), ESC Congress 2003.
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Oriol Rodriguez-Leor, E. Fernandez-Nofrerias, J. Mauri, C. Garcia, R. Villuendas, V. Valle, et al. (2003). Empirical simulation model of intravascular ultrasound. European Heart Journal (IF: 5.997), ESC Congress 2003.
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Oriol Rodriguez-Leor, E. Fernandez-Nofrerias, J. Mauri, R. Villuendas, C. Garcia, V. Valle, et al. (2003). An empiric model for three-dimensional reconstruction of coronary vessels from X-ray angiography. European Heart Journal (IF: 5.997), ESC Congress 2003.
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Oriol Rodriguez-Leor, J. Mauri, E. Fernandez-Nofrerias, J. Lopez, M. Gomez, V. Valle, et al. (2003). Coronary arteries three-dimensional quantification using intravascular ultrasound and angiography. European Heart Journal (IF: 5.997), ESC Congress 2003.
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Jordi Gonzalez, Javier Varona, Xavier Roca, & Juan J. Villanueva. (2003). Human Sequence Evaluation: towards Knowledge-based Scene Interpretations.
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Jordi Gonzalez, Javier Varona, Xavier Roca, & Juan J. Villanueva. (2003). A Human Action Comparison Framework for Motion Understanding.
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B. Moghaddam, David Guillamet, & Jordi Vitria. (2003). , Local Appearance-Based Models using High-Order Statistics of Image Features.
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David Guillamet, B. Moghaddam, & Jordi Vitria. (2003). Higher-Order Dependencies in Local Appearance Models.
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Angel Sappa, Niki Aifanti, Sotiris Malassiotis, & Michael G. Strintzis. (2003). Monocular 3D Human Body Reconstruction Towards Depth Augmentation of Television Sequences. In IEEE International Conference on Image Processing, Barcelona, Spain, September 2003 (pp. 325–328).
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