874 resultados para VIRTUAL-REALITY
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Según Philip Kotler, considerado el padre del mercadeo, (en su libro Principles Of Marketing) la mercadotecnia es «el proceso social y administrativo por el cual los grupos e individuos satisfacen sus necesidades al crear e intercambiar bienes y servicios». La presente investigación tomará como punto de referencia para conceptualizar el marco teórico, la historia y evolución del mercadeo y sus actuales tendencias y rumbos; así como la incidencia que tiene en la planificación del área de mercadeo para las empresas que siguen este tipo de corrientes contemporáneas. Durante el desarrollo de la presente investigación se analizaran las nuevas tendencias de mercadeo basándose en la evolución y su referencia histórica. Ahora, se verá cómo el e-marketing compone una nueva estrategia para el desarrollo de ventaja competitiva entendiéndose ésta como un conjunto de atributos de una empresa que la distinguen de sus competidores. Este nuevo marketing que se quiere presentar, Total e-marketing, se compone del posicionamiento de la organización en la realidad virtual. Se utilizarán como factores claves de éxito en el posicionamiento de la organización en buscadores de internet como redes, wikipedia, google, facebook, etc.
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El Projecte s’ha desenvolupat dintre del Grup de Geometria i Gràfics de la Udg on es treballa amb projectes de desenvolupament urbanístic 3D. L’objectiu del projecte consisteix en construir una aplicació per simular l’evolució de ciutats expandint els carrers al llarg del temps. L’aplicació es desenvoluparà dintre del projecte urbanEngine incorporant la possibilitat d’expandir ciutats com una extensió d’aquest. A més es vol dissenyat una interfície gràfica d’usuari que faciliti les tasques de configuració i supervisió del sistema
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In this lecture we look at how innovation in games has moved from the creation of new genres, to the incorporation of new technology, that has unlocked new ways to play games. In particular we look at casual and social games, motion controllers, virtual reality, augmented reality, location-based games, mixed reality, and alternate reality.
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Propuesta de creación de un espacio reactivo potencial con la particularidad de la estructuración, preparación y desarrollo artístico. Se trata de una instalación con estructura regular en la que se ocultan las obras en ausencia de público con la intención de preservar la exhibición. Estructura virtual que oculta la obra de arte expuestas en ausencia de observador. Mecanismos prácticos de creación de entornos tridimensionales y escenarios. Programación en lenguaje visual basic para accionadores automáticos aleatorios. Sistemas de navegación virtual Quicktime vr.vrml y diseño del espacio de representación artístico interactivo. Objetos, situación y configuraciones. Iluminación. Renderizados. Software informático 3D y tecnología VRML (Virtual Reality Modeling Languaje). Proceso investigador directamente ligado a la creación artística y las nuevas tecnologías. metodología cualitativa experimental de representación educativa sobre los sujetos que contemplan los programas. La percepción del arte es variable en el espacio y el tiempo siendo ello una condición que no fija la obra en una ubicación única y perdurable sino que varía en relación con la disposición consciente e inconsciente del sujeto en su entorno. Tratándose de un sistema de representación artístico inédito podrá servir de puerta a nuevas líneas de investigación en el arte activo, multiusuario, reactivo e integral.
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RESUMO:O hábito de ler é decorrente do exercício e nem sempre se constitui num ato prazeroso, porém, sempre necessário. Por este motivo se deve recorrer a estímulos para criar o hábito de leitura em nossos alunos. Desta forma, a disciplina de Educação Física pode também contribuir para este processo. Por ser uma disciplina que envolve a dimensão motora, cognitiva e expressionista, a sua relação com a leitura é quase que intrínseca, porém, viabilizada de formas diferentes. É certo que a criança não conseguirá na sua totalidade, uma absorção intelectual explícita da leitura para construir uma realidade virtual e representar em gestos corporais, a partir de um conjunto léxico de significantes e significados correspondentes à postura física. No entanto, o exercício da leitura desenvolve na criança capacidades cognitivas de mais valia que lhe possibilita níveis satisfatórios de representatividade corporal. As atividades recreativas oferecem, sem dúvida, um processo excepcional para fazer as crianças tomarem parte ativamente no processo do ensino, como participantes, em vez de meros espectadores. A proposta deste trabalho de intervenção busca auxiliar o professor de Educação Física no campo de atuação profissional do pesquisador, tendo como delimitação do campo de investigação o Centro de Educação Básica Governador Freitas Neto, escola da rede municipal de Educação de Teresina e, Colégio Lerote, da rede particular de Teresina. Deste modo, os objetivos do presente estudo consistem em analisar as contribuições da disciplina de Educação Física para a aprendizagem do ensino da prática de leitura com crianças do Ensino Fundamental, nas séries iniciais com escolas da rede municipal e particular da cidade de Teresina – Piauí. Concluiu-se que com um trabalho integrado da Educação Física com o processo de alfabetização nas primeiras séries do Ensino Fundamental, essa etapa pode ser vista de forma rica e ampla. Assim, com essa contribuição, aprender a ler e escrever pode, pois, se tornar mais natural e mais divertido. ABSTRACT: The habit of reading is a result of exercise and is not always a pleasurable act, but always necessary. For this reason one should resort to incentives to create the reading habit in our students. Thus, the discipline of Physical Education can also contribute to this process. Because it is a discipline that involves the size motor, cognitive and expressionistic, their relationship with reading that is almost inherent, however, made possible in different ways. It is true that the child can not in its entirety, an explicit intellectual absorption of reading to construct a virtual reality and represented body gestures from a whole lexicon of signifiers and meanings corresponding to the physical posture. However, the exercise of reading the child develops cognitive abilities that enables him to gain more satisfactory levels of representative body. The recreational activities offer, no doubt, an exceptional procedure to make the children take part actively in the process of education, as participants rather than spectators. The purpose of this intervention work intends to help the physical education teacher in the professional field of research, with the delimitation of the field of research the Centre for Basic Education Governador Freitas Neto, the municipal school of Teresina and Education, College Lerote, from private Teresina. Thus, the objectives of this study are to analyze the contributions of physical education for learning the practice of teaching reading with children of elementary school, in the early grades with municipal schools and particularly the city of Teresina - Piauí. It was concluded that with an integrated physical education with the acquisition of literacy in the early grades of elementary school, this step can be seen in a rich and broad. So, with this contribution, learning to read and write may therefore become more natural and fun.
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Child molesters (n=13) and sexually non-deviant subjects (n=29) were immersed with virtual characters depicting relevant sexual features while their sexual arousal and gaze behaviour were assessed to characterize their sexual preferences and intentional dynamics. Sexual arousal was measured using circumferential penile plethysmography (PPG). Gaze behaviour dynamics was derived from average gaze radial angular deviation (GRAD) and GRAD coefficient of variation (GRADCV). Results show distinct sexual arousal profiles according to sexual preferences and point towards the existence of specific gaze behaviour dynamics guided by sexual intentions. Theoretical interpretations are based on the ecological psychology of J.J. Gibson and the integrated theory of sexual offending (Ward, 2009; Ward & Beech, 2006). Theoretical underpinnings coming from these approaches are advocated as being especially well suited to explain how virtual reality can help probing into child molesters’ phenomenology as lived from the first-person stance.
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Cue combination rules have often been applied to the perception of surface shape but not to judgements of object location. Here, we used immersive virtual reality to explore the relationship between different cues to distance. Participants viewed a virtual scene and judged the change in distance of an object presented in two intervals, where the scene changed in size between intervals (by a factor of between 0.25 and 4). We measured thresholds for detecting a change in object distance when there were only 'physical' (stereo and motion parallax) or 'texture-based' cues (independent of the scale of the scene) and used these to predict biases in a distance matching task. Under a range of conditions, in which the viewing distance and position of the tarte relative to other objects was varied, the ration of 'physical' to 'texture-based' thresholds was a good predictor of biases in the distance matching task. The cue combination approach, which successfully accounts for our data, relies on quite different principles from those underlying geometric reconstruction.
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Physical rehabilitation of brain injuries and strokes is a time consuming and costly process. Over the past decade several studies have emerged looking at the use of highly sophisticated technologies, such as robotics and virtual reality to tap into the needs of clinicians and patients. While such technologies can be a valuable tool to facilitate intensive movement practice in a motivating and engaging environment, success of therapy also depends on self-administered therapy beyond hospital stay. With the emergence of low-cost gaming consoles such as the Nintendo Wii, new opportunities arise for home-therapy paradigms centred on social interactions and values, which could reduce the sense of isolation and other depression related complications. In this paper we examine the potential, user acceptance and usability of an unmodified Nintendo Wii gaming console as a low-cost treatment alternative to complement current rehabilitation programmes.
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In an immersive virtual reality environment, subjects fail to notice when a scene expands or contracts around them, despite correct and consistent information from binocular stereopsis and motion parallax, resulting in gross failures of size constancy (A. Glennerster, L. Tcheang, S. J. Gilson, A. W. Fitzgibbon, & A. J. Parker, 2006). We determined whether the integration of stereopsis/motion parallax cues with texture-based cues could be modified through feedback. Subjects compared the size of two objects, each visible when the room was of a different size. As the subject walked, the room expanded or contracted, although subjects failed to notice any change. Subjects were given feedback about the accuracy of their size judgments, where the “correct” size setting was defined either by texture-based cues or (in a separate experiment) by stereo/motion parallax cues. Because of feedback, observers were able to adjust responses such that fewer errors were made. For texture-based feedback, the pattern of responses was consistent with observers weighting texture cues more heavily. However, for stereo/motion parallax feedback, performance in many conditions became worse such that, paradoxically, biases moved away from the point reinforced by the feedback. This can be explained by assuming that subjects remap the relationship between stereo/motion parallax cues and perceived size or that they develop strategies to change their criterion for a size match on different trials. In either case, subjects appear not to have direct access to stereo/motion parallax cues.
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As we move through the world, our eyes acquire a sequence of images. The information from this sequence is sufficient to determine the structure of a three-dimensional scene, up to a scale factor determined by the distance that the eyes have moved [1, 2]. Previous evidence shows that the human visual system accounts for the distance the observer has walked [3,4] and the separation of the eyes [5-8] when judging the scale, shape, and distance of objects. However, in an immersive virtual-reality environment, observers failed to notice when a scene expanded or contracted, despite having consistent information about scale from both distance walked and binocular vision. This failure led to large errors in judging the size of objects. The pattern of errors cannot be explained by assuming a visual reconstruction of the scene with an incorrect estimate of interocular separation or distance walked. Instead, it is consistent with a Bayesian model of cue integration in which the efficacy of motion and disparity cues is greater at near viewing distances. Our results imply that observers are more willing to adjust their estimate of interocular separation or distance walked than to accept that the scene has changed in size.
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An increasing number of neuroscience experiments are using virtual reality to provide a more immersive and less artificial experimental environment. This is particularly useful to navigation and three-dimensional scene perception experiments. Such experiments require accurate real-time tracking of the observer's head in order to render the virtual scene. Here, we present data on the accuracy of a commonly used six degrees of freedom tracker (Intersense IS900) when it is moved in ways typical of virtual reality applications. We compared the reported location of the tracker with its location computed by an optical tracking method. When the tracker was stationary, the root mean square error in spatial accuracy was 0.64 mm. However, we found that errors increased over ten-fold (up to 17 mm) when the tracker moved at speeds common in virtual reality applications. We demonstrate that the errors we report here are predominantly due to inaccuracies of the IS900 system rather than the optical tracking against which it was compared. (c) 2006 Elsevier B.V. All rights reserved.
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Accurate calibration of a head mounted display (HMD) is essential both for research on the visual system and for realistic interaction with virtual objects. Yet, existing calibration methods are time consuming and depend on human judgements, making them error prone. The methods are also limited to optical see-through HMDs. Building on our existing HMD calibration method [1], we show here how it is possible to calibrate a non-see-through HMD. A camera is placed inside an HMD displaying an image of a regular grid, which is captured by the camera. The HMD is then removed and the camera, which remains fixed in position, is used to capture images of a tracked calibration object in various positions. The locations of image features on the calibration object are then re-expressed in relation to the HMD grid. This allows established camera calibration techniques to be used to recover estimates of the display’s intrinsic parameters (width, height, focal length) and extrinsic parameters (optic centre and orientation of the principal ray). We calibrated a HMD in this manner in both see-through and in non-see-through modes and report the magnitude of the errors between real image features and reprojected features. Our calibration method produces low reprojection errors and involves no error-prone human measurements.
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Virtual Reality (VR) is widely used in visualizing medical datasets. This interest has emerged due to the usefulness of its techniques and features. Such features include immersion, collaboration, and interactivity. In a medical visualization context, immersion is important, because it allows users to interact directly and closelywith detailed structures in medical datasets. Collaboration on the other hand is beneficial, because it gives medical practitioners the chance to share their expertise and offer feedback and advice in a more effective and intuitive approach. Interactivity is crucial in medical visualization and simulation systems, because responsiveand instantaneous actions are key attributes in applications, such as surgical simulations. In this paper we present a case study that investigates the use of VR in a collaborative networked CAVE environment from a medical volumetric visualization perspective. The study will present a networked CAVE application, which has been built to visualize and interact with volumetric datasets. We will summarize the advantages of such an application and the potential benefits of our system. We also will describe the aspects related to this application area and the relevant issues of such implementations.
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Successful results from training an adaptive controller to use optical information to balance an inverted pendulum are presented in comparison to the training requirements using traditional controller inputs. Results from research into the psychology of the sense of balance in humans are presented as the motivation for the investigation of this new type of controller. The simulated model of the inverted pendulum and the virtual reality environments used to provide the optical input are described The successful introduction of optical information is found to require the preservation of at least two of the traditional input types and entail increased training time for the adaptive controller and reduced performance (measured as the time the pendulum remains upright).
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The results from applying a sensor fusion process to an adaptive controller used to balance all inverted pendulum axe presented. The goal of the sensor fusion process was to replace some of the four mechanical measurements, which are known to be sufficient inputs for a linear state feedback controller to balance the system, with optic flow variables. Results from research into the psychology of the sense of balance in humans were the motivation for the investigation of this new type of controller input. The simulated model of the inverted pendulum and the virtual reality environments used to provide the optical input are described. The successful introduction of optical information is found to require the preservation of at least two of the traditional input types and entail increased training till-le for the adaptive controller and reduced performance (measured as the time the pendulum remains upright)