Julio Guerrero

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Much effort has been devoted to the geometrization of Quantum Mechanics during the second half of this Century in an attempt to emulate Classical Mechanics and Classical Gravity at mathematical beauty and, why not, to better understand Quantum Gravity. We wish to report on one particular line of this task, which lies mostly on symmetry grounds and has been(More)
World oil demand and advanced oil recovery techniques have made it economically attractive to rehabilitate previously abandoned oil wells. This requires relatively fast mapping of the shape and location of the down-hole well structures. Practical factors prohibit the use of visual and other range sensors in this situation. Here, the feasibility of robotic(More)
We report a patient with left subclavian artery stenosis in whom the internal thoracic artery (ITA) had been used as a coronary bypass. She presented with symptomatic myocardial and brain ischemia resulting from coronary-subclavian steal syndrome and was successfully treated with angioplasty and stenting.
We present a novel technique for estimating initial 3D poses in the context of localization and Visual SLAM problems. The presented approach can deal with noise, outliers and a large amount of input data and still performs in real time in a standard CPU. Our method produces solutions with an accuracy comparable to those produced by RANSAC but can be much(More)
We present a unified group-theoretical derivation of the Continuous Wavelet Transform (CWT) on the circle S and the real line R, following the general formalism of Coherent States (CS) associated to unitary square integrable (modulo a subgroup, possibly) representations of the group SL(2,R). A general procedure for obtaining unitary representations of a(More)
In this work, we address the problem of outlier detection for robust motion estimation by using modern sparse-low-rank decompositions, i.e., Robust PCA-like methods, to impose global rank constraints. Robust decompositions have shown to be good at splitting a corrupted matrix into an uncorrupted low-rank matrix and a sparse matrix, containing outliers.(More)
German Ros1,2 gros@cvc.uab.es Julio Guerrero3 juguerre@um.es Angel D. Sappa1 asappa@cvc.uab.es Daniel Ponsa1,2 daniel@cvc.uab.es Antonio M. López-Peña1,2 antonio@cvc.uab.es 1 Computer Vision Center Edifici O, Campus UAB, 08193 Bellaterra (Barcelona), Spain 2 Computer Science Dept. Universitat Autònoma de Barcelona Campus UAB, Bellaterra (Barcelona), Spain 3(More)
The quantum dynamics of a particle in the Modified Pöschl-Teller potential is derived from the group SL(2,R) by applying a Group Approach to Quantization (GAQ). The explicit form of the Hamiltonian as well as the ladder operators is found in the enveloping algebra of this basic symmetry group. The present algorithm provides a physical realization of the(More)
‘‘Pseudo-cohomology,’’ as a refinement of Lie group cohomology, is soundly studied aiming at classifying the symplectic manifolds associated with Lie groups. In this study, the framework of symplectic cohomology provides fundamental new insight, which enriches the analysis previously developed in the setting of Cartan– Eilenberg H(G ,U(1)) cohomology. ©(More)