13,235 research outputs found

    Cracks in the Glass: The Emergence of a New Image Typology from the Spatio-temporal Schisms of the 'Filmic' Virtual Reality Panorama

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    Virtual Reality Panoramas have fascinated me for some time; their interactive nature affording a spectatorial engagement not evident within other forms of painting or digital imagery. This interactivity is not generally linear as is evident in animation or film, nor is the engagement with the image reduced to the physical or visual border of the image, as its limit is never visible to the viewer in its entirety. Further, the time taken to interact and navigate across the Virtual Reality panorama’s surface is not reflected or recorded within the observed image. The procedural construction of the Virtual Reality panorama creates an a-temporal image event that denies the durée of its own index and creation. This is particularly evident in the cinematic experiments conducted by Jeffrey Shaw in the 1990s that ‘spatialised’ time and image through the fusion of the formal typology of the Panorama together with the cinematic moving-image, creating a new kind of image technology. The incorporation of the space enclosed by the panorama’s drum, into the conception and execution of the cinematic event, reveals an interesting conceptual paradox. Space and time infinitely and autonomously repeat upon each other as the linear trajectory of the singular cinematic shot is interrupted by a ‘time schism’ on the surface of the panorama. This paper explores what this conceptual paradox means to the evolution of emerging image-technologies and how Shaw’s ‘mixed-reality’ installation reveals a wholly new image typology that presents techniques and concepts though which to record, interrogate, and represent time and space in Architecture

    E-topia: Utopia after the Mediated Body

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    open access journalA custom-made media installation, diplorasis, will be used to explore the body in digital media. This mediated body attempts to re-think how the Deleuzian time-image is translated from its cinematic confinement to the space of new media. In diplorasis the digitized time-image becomes more directly incorporated with-in the bodily schema. Consequently, the thinking of the virtual and actual space of the body in diplorasis enables a questioning of bodily space-time, and particularly the relation between self and digitized self-image. It is thus crucial to re-frame how this digitized mediated body is distinct from a conventional notion of a metric and habitual space—one that is reinforced by, for example, the medium of linear perspective. The articulation of the mediated body will be used to in-form and extend Elizabeth Grosz’s paradoxical reading of embodiment and utopia, by revisiting the notions of utopia as eu-topic/ou-topic. The spatio-temporality of the topos must be re-considered before utopia. Foucault’s analogy of the mirror will then serve to superimpose the dual and slippery relations between utopia and the heterotopic. The digitized mediated body will thus seek to explore emerging ways by which to consider the utopic by conflating embodiment, time and space within an electronic topos. It is argued that as the sensing and cognitive body becomes increasingly pliable in relation to technological mediations, our very understanding of space-time is changing

    Functional Electrical Stimulation mediated by Iterative Learning Control and 3D robotics reduces motor impairment in chronic stroke

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    Background: Novel stroke rehabilitation techniques that employ electrical stimulation (ES) and robotic technologies are effective in reducing upper limb impairments. ES is most effective when it is applied to support the patients’ voluntary effort; however, current systems fail to fully exploit this connection. This study builds on previous work using advanced ES controllers, and aims to investigate the feasibility of Stimulation Assistance through Iterative Learning (SAIL), a novel upper limb stroke rehabilitation system which utilises robotic support, ES, and voluntary effort. Methods: Five hemiparetic, chronic stroke participants with impaired upper limb function attended 18, 1 hour intervention sessions. Participants completed virtual reality tracking tasks whereby they moved their impaired arm to follow a slowly moving sphere along a specified trajectory. To do this, the participants’ arm was supported by a robot. ES, mediated by advanced iterative learning control (ILC) algorithms, was applied to the triceps and anterior deltoid muscles. Each movement was repeated 6 times and ILC adjusted the amount of stimulation applied on each trial to improve accuracy and maximise voluntary effort. Participants completed clinical assessments (Fugl-Meyer, Action Research Arm Test) at baseline and post-intervention, as well as unassisted tracking tasks at the beginning and end of each intervention session. Data were analysed using t-tests and linear regression. Results: From baseline to post-intervention, Fugl-Meyer scores improved, assisted and unassisted tracking performance improved, and the amount of ES required to assist tracking reduced. Conclusions: The concept of minimising support from ES using ILC algorithms was demonstrated. The positive results are promising with respect to reducing upper limb impairments following stroke, however, a larger study is required to confirm this

    Virtual Reality Games for Motor Rehabilitation

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    This paper presents a fuzzy logic based method to track user satisfaction without the need for devices to monitor users physiological conditions. User satisfaction is the key to any product’s acceptance; computer applications and video games provide a unique opportunity to provide a tailored environment for each user to better suit their needs. We have implemented a non-adaptive fuzzy logic model of emotion, based on the emotional component of the Fuzzy Logic Adaptive Model of Emotion (FLAME) proposed by El-Nasr, to estimate player emotion in UnrealTournament 2004. In this paper we describe the implementation of this system and present the results of one of several play tests. Our research contradicts the current literature that suggests physiological measurements are needed. We show that it is possible to use a software only method to estimate user emotion

    v. 83, issue 19, April 21, 2016

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    Narrative Storytelling In VR Through Gaming

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    Gaming has consistently been acknowledged as a storytelling medium for its signature ability to provide user interaction. As virtual reality becomes a more prominent gaming environment, it will be expected to carry on the tradition of storytelling. Currently, virtual reality is in a state of infancy, where products offer little sophistication and serve as amusements rather than storytellers. As this changeover takes effect, there are certain discrepancies which will hinder a transition from flat screen gaming to virtual reality gaming. In order to create a successful narrative driven virtual reality game, these discrepancies must be addressed in a meaningful way. This thesis will also experiment with the aforementioned differences by developing a virtual reality game in Unreal Engine 4

    The virtual environments lighting quality assessment using the virtual reality

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    The computer simulation field opened up new application opportunities in architecture in the last decades. In particular, Virtual Reality (VR) and Immersive Virtual Environments (IVEs) enable to study the subjective experience in-vitro. This paper investigates the ability of VR coupled with immersive devices in providing users with a better spatial lighting understanding. The goal is to reason about the potentiality of VR and IVE on the lighting quality assessment studies involving final users. The research was carried out by analysing and comparing data of the spatial and lighting perception of users using conventional devices frequently used by researchers in the lighting field for running experiments: screens, video projectors, and VR. Three different virtual lighting conditions in a virtual environment were presented, and a survey was administered to twenty-six participants. Results show that immersive VR allows obtaining more significant correlations between lightning variables than the other devices. Besides, the statistical analyses highlight that VR navigation with immersive devices is associated with an overall better lightning perception of the virtual model than the other non-immersive devices tested in the experimentation. The findings also show that users prefer the immersive environment
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