Humberto Pérez Espinosa

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Depression is a disease that affects a considerable portion of the world population. Severe cases of depression interfere with the common live of patients, for those patients a strict monitoring is necessary in order to control the progress of the disease and to prevent undesired side effects. A way to keep track of patients with depression is by means of(More)
This paper examines the importance of different groups of speech acoustic features in the estimation of emotional primitives which define a three-dimensional continuous model of emotions. A set of proposed features is extracted from a database of German spontaneous emotional speech. This features set tries to represent several aspects of emotional content(More)
In this paper we describe a new technique to create virtual environments using photographs. A mobile robot is used to take pictures automatically, that are used in an image rendering system. Using a mobile robot allows to take photographs of large areas easily and accurately. Our Virtual and Real Robot (ViRBot) System is used to control the movements of a(More)
In this paper we describe a system to simulate and operate Virtual and Real robots (ViRBot). The system consists of several layers that control the operation of real and virtual robots. A 3D graphic engine interface allows to test multiple virtual robots, that are a close simulation of the real ones, the virtual robots are able to execute the same commands,(More)
We present some of the recent advances in computational electromagnetics developed at AntennaLab, UPC. The paper focuses on two research lines: Firstly, an improved version of the multilevel matrix decomposition algorithm (MLMDA) is presented. This new approach lends itself to both traditional iterative and direct solutions of the linear system. Secondly,(More)