Método de diseño de redes de medida de contaminantes atmosféricos

Se presenta un método de diseño de redes de medida de contaminantes atmosféricos, Útil para realizar Estudios de Impacto Ambiental. Esta técnica conduce a una red óptima, en el sentido de que proporciona la mayor información posible utilizando el mínimo número de dispositivos de medida. En el diseño se utiliza la técnica de Análisis de Correlación Espacial, para comparar la información contenida en las posibles estaciones de medida que pueden pertenecer a la red, y el concepto de Potencial de Violación, para tener en cuenta el número de ocasiones que se detectan en que se superan los valores de inmisión permitidos por la ley. Como ilustración del método, se diseña una red de medida de contaminantes atmosféricos para realizar el Estudio del Impacto Ambiental producido por una Planta de Procesado de Potasio.Peer Reviewe

Método de diseño de redes de medida de contaminantes atmosféricos

Se presenta un método de diseño de redes de medida de contaminantes atmosféricos, Útil para realizar Estudios de Impacto Ambiental. Esta técnica conduce a una red óptima, en el sentido de que proporciona la mayor información posible utilizando el mínimo número de dispositivos de medida. En el diseño se utiliza la técnica de Análisis de Correlación Espacial, para comparar la información contenida en las posibles estaciones de medida que pueden pertenecer a la red, y el concepto de Potencial de Violación, para tener en cuenta el número de ocasiones que se detectan en que se superan los valores de inmisión permitidos por la ley. Como ilustración del método, se diseña una red de medida de contaminantes atmosféricos para realizar el Estudio del Impacto Ambiental producido por una Planta de Procesado de Potasio.Peer Reviewe

Lineal perspective estimation on monocular images

Depth estimation from monocular images can be retrieved from the perspective distortion. One major e ect of this distortion is that a set of parallel lines in the real world converges into a single point in the image plane. The estimation of the coordinates of the vanishing point can be retrieved directly by di erent ways, like Hough Transform and First derivative approaches. Many of them work on speci c real scene characteristics and often lead to spurious vanishing points. Technology and computational advances suggest that some re nements to these simple techniques or a combination of them could lead to more con dent vanishing point detection than modelling and developing a new complicated ones. In this paper we study the behaviour of two classical approaches, introduce them some improvements and propose a new combinational technique to estimate the location of the vanishing point in an image. The solutions will be described and compared, also through the discussion of the results obtained from their application to real images.Presentado en el VIII Workshop Computación Gráfica, Imágenes y Visualización (WCGIV)Red de Universidades con Carreras en Informática (RedUNCI

Lineal perspective estimation on monocular images

Depth estimation from monocular images can be retrieved from the perspective distortion. One major e ect of this distortion is that a set of parallel lines in the real world converges into a single point in the image plane. The estimation of the coordinates of the vanishing point can be retrieved directly by di erent ways, like Hough Transform and First derivative approaches. Many of them work on speci c real scene characteristics and often lead to spurious vanishing points. Technology and computational advances suggest that some re nements to these simple techniques or a combination of them could lead to more con dent vanishing point detection than modelling and developing a new complicated ones. In this paper we study the behaviour of two classical approaches, introduce them some improvements and propose a new combinational technique to estimate the location of the vanishing point in an image. The solutions will be described and compared, also through the discussion of the results obtained from their application to real images.Presentado en el VIII Workshop Computación Gráfica, Imágenes y Visualización (WCGIV)Red de Universidades con Carreras en Informática (RedUNCI

Mi relación con el Servicio Central de Informática, antiguo Centro de Cálculo, de la Universidad de Zaragoza, 1963-2008

La memoria episódica es la memoria relacionada con sucesos autobiográ cos (momentos, lugares, emociones asociadas y demás conocimientos contextuales) que pueden evocarse de forma explícita. La relación entre emoción y memoria es com- pleja, pero en general la emoción tiende a incrementar la posi- bilidad de que un suceso concreto pueda ser recordado más adelante y de una forma más vívida. Un ejemplo de esto son los llamados «recuerdos de tipo ashbulb», término empleado para referirse al recuerdo de experiencias o sucesos que tienen un signi cado especial para el individuo y que suelen alcanzar un alto grado de nitidez. A pesar de ello, una persona no recuerda exactamente todo lo que le ha ocurrido en el pasado. La memoria autobiográ ca es constructiva, se reconstruye mediante el procesamiento de la historia pasada, y las experiencias previas afectan al modo en que se recuerdan los sucesos y al resultado nal de la evo- cación. A pesar de ello, es bastante able, pero esta abilidad puede verse amenazada por las distorsiones memorísticas. El presente documento es un ejemplo de este tipo de recuerdos. La idea primigenia me surgió el año 2004, siendo vicerrector adjunto para las Tecnologías de la Información y las Comuni- caciones con el rector Felipe Pétriz. El objetivo era recuperar la historia del Servicio de Informática y Comunicaciones de la Universidad de Zaragoza desde su fundación en 1963. He de decir que desde entonces no ha habido manera de conseguirlo, y eso que lo he intentado en numerosas ocasiones. Por lo visto, todo el mundo ha estado y sigue estando muy ocupado, y posi- blemente el tema no interese a nadie. Este servicio ha tenido un signi cado muy especial para mi vida profesional. En él inicié mi andadura por el mundo de la infor- mática en el curso 1974-1975 y, como se verá, he mantenido mi relación de forma continuada tanto en lo profesional como en lo afectivo hasta el año 2008. Por todo lo dicho, a partir de enero del 2015 decidí empezar a recoger mis recuerdos de la manera más able posible en este documento. Pido disculpas por los lapsus de memoria en los que haya podi- do incurrir: agradeceré cualquier tipo de información que pueda servir para mejorar el documento, y me encantaría que a alguien le pudiera interesar

Modeling flocks with perceptual agents from a dynamicist perspective

Computational simulations of flocks and crowds have typically been processed by a set of logic or syntactic rules. In recent decades, a new generation of systems has emerged from dynamicist approaches in which the agents and the environment are treated as a pair of dynamical systems coupled informationally and mechanically. Their spontaneous interactions allow them to achieve the desired behavior. The main proposition assumes that the agent does not need a full model or to make inferences before taking actions; rather, the information necessary for any action can be derived from the environment with simple computations and very little internal state. In this paper, we present a simulation framework in which the agents are endowed with a sensing device, an oscillator network as controller and actuators to interact with the environment. The perception device is designed as an optic array emulating the principles of the animal retina, which assimilates stimuli resembling optic flow to be captured from the environment. The controller modulates informational variables to action variables in a sensory-motor flow. Our approach is based on the Kuramoto model that describes mathematically a network of coupled phase oscillators and the use of evolutionary algorithms, which is proved to be capable of synthesizing minimal synchronization strategies based on the dynamical coupling between agents and environment. We carry out a comparative analysis with classical implementations taking into account several criteria. It is concluded that we should consider replacing the metaphor of symbolic information processing by that of sensory-motor coordination in problems of multi-agent organizations

Laughter and smiling facial expression modelling for the generation of virtual affective behavior

Laughter and smiling are significant facial expressions used in human to human communication. We present a computational model for the generation of facial expressions associated with laughter and smiling in order to facilitate the synthesis of such facial expressions in virtual characters. In addition, a new method to reproduce these types of laughter is proposed and validated using databases of generic and specific facial smile expressions. In particular, a proprietary database of laugh and smile expressions is also presented. This database lists the different types of classified and generated laughs presented in this work. The generated expressions are validated through a user study with 71 subjects, which concluded that the virtual character expressions built using the presented model are perceptually acceptable in quality and facial expression fidelity. Finally, for generalization purposes, an additional analysis shows that the results are independent of the type of virtual character’s appearance. © 2021 Mascaró et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

A theoretical reflection on smart shape modeling

This paper presents, as far as the authors are aware, a complete and extended new taxonomy of shape specification modeling techniques and a characterization of shape design systems, all based on the relationship of users’ knowledge to the modeling system they use to generate shapes. In-depth knowledge of this relationship is not usually revealed in the regular university training courses such as bachelor’s, master’s and continuing education. For this reason, we believe that it is necessary to modify the learning process, offering a more global vision of all the currently existing techniques and extending training in those related to algorithmic modeling techniques. We consider the latter to be the most powerful current techniques for modeling complex shapes that cannot be modeled with the usual techniques known to date. Therefore, the most complete training should include everything from the usual geometry to textual programming. This would take us a step further along the way to more powerful design environments. The proposed taxonomy could serve as a guideline to help improve the learning process of students and designers in a complex environment with increasingly powerful requirements and tools. The term “smart” is widely used nowadays, e.g. smart phones, smart cars, smart homes, smart cities... and similar terms such as “smart shape modeling”. Nowadays, the term smart is applied from a marketing point of view, whenever an innovation is used to solve a complex problem. This is the case for what is currently called smart shape modeling. However, in the future; this concept should mean a much better design environment than today. The smart future requires better trained and skilled engineers, architects, designers or technical students. This means that they must be prepared to be able to contribute to the creation of new knowledge, to the use of innovations to solve complex problems of form, and to the extraction of the relevant pieces of intelligence from the growing volume of knowledge and technologies accessible today. Our taxonomy is presented from the point of view of methods that are possibly furthest away from what is considered today as “intelligent shape modeling” to the limit of what is achievable today and which the authors call “Generic Shape Algorithm”. Finally, we discuss the characteristics that a shape modeling system must have to be truly “intelligent”: it must be “proactive” in applying innovative ideas to achieve a solution to a complex problem

Experimental Validation of a Robotic Stretcher for Casualty Evacuation in a Man-Made Disaster Exercise

This paper describes a cooperative search and rescue exercise where an unmanned ground vehicle (UGV) is used by a military rescue team for extraction and evacuation of a casualty from an unsafe man-made disaster area. This experimental validation was performed within a full-scale emergency response exercise organized on June 2019 by the Chair of Safety, Emergencies and Disasters at Universidad de Málaga (Spain). With this purpose, we adapted the skid-steer Rambler robot to carry a stretcher with appropriate roll-in and locking mechanisms. The mission consisted of two phases: first, extraction from the hot zone was performed with remote teleoperation using a dummy; second, casualty evacuation (CASEVAC) to an aeromedical evacuation point was done with sightline teleoperation moving an actual volunteer. The realistic one-shot exercise was performed by actual rescue personnel with no previous experience with the robotic system. The paper shares insight and lessons learned from this concept validation experience.This work was partially supported by the project ``TRUST-ROB: Towards Resilient UGV and UAV Manipulator Teams for Robotic Search and Rescue Tasks'', funded by the Spanish Government (RTI2018-093421-B-I00). Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech