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Now showing 1 - 4 of 4
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    Controlling 3D Visualisations with Multiple Degrees of Freedom
    (The Eurographics Association, 2019) Sandoval, Mario; Morris, Tim; Turner, Martin; Vidal, Franck P. and Tam, Gary K. L. and Roberts, Jonathan C.
    In this paper, the two major components of a new multi-layer framework ideal for two-handed interaction in desktop virtual environments called Library for Interactive Settings of User-Mode (LISU) are explained. In addition, we evaluate LISU performance with a group of participants and we report some of our initial results by giving an analysis of user experiences, and interaction speed.
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    A Physical Model for the Polarized Scattering of Light
    (The Eurographics Association, 2008) Brayford, David; Turner, Martin; Hewitt, W. T.; Ik Soo Lim and Wen Tang
    The change in polarization state due to the interaction of light with the surface and beneath the surface of an object has become increasingly important in realistic image synthesis of materials such as metallic, iridescent and pearlescent paint, skin, hair and cosmetics. This paper presents a model for the anisotropic scattering of polarized light based upon the physics of light; which is capable of calculating both partial and complete polarization using a combination of Jones and Mueller calculus, as well as incorporating self shadowing effects.
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    Advantages of 3D Extraction and Spatial Awareness within a Videoconferencing Environment
    (The Eurographics Association, 2011) Rodriguez-Frias, Myrna M.; Morris, Tim; Turner, Martin; Rowley, Andrew; Ian Grimstead and Hamish Carr
    This work-in-progress paper describes some of the issues, and lists proposed use-case scenarios, for the development of a real-time multi-participant 3D enhanced videoconferencing system. We are interested in creating a framework capable of reconstructing an approximate 3D model of the physical environment, from a collection of images taken via the same system from probably unknown camera viewpoints. This reconstruction framework creates a partial 3D world that is embedded back within the videoconferencing environment and transmitted to all participants. We hypothesise that detailed 3D positional information combined with this augmented 3D world information of remote sites, can be useful to participants over and above the usual audio and video streams; it is believed that 3D reconstruction can be a rich tool to enable analysis and spatial awareness, moreover facilitating interactions with participants at remote sites.
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    Remote Scientific Visualization for Large Datasets
    (The Eurographics Association, 2010) Turner, Martin; Leaver, George; Perrin, James; John Collomosse and Ian Grimstead
    Remote scientific visualization, where rendering services are provided by larger scale systems than are available on the desktop, are becoming increasingly important as dataset sizes increase beyond the capabilities of desktop workstations. Uptake of such services relies on access to suitable visualization applications and the ability to view the resulting visualization in a convenient form. We apply five rules from the e-Science community to meet these goals with the porting of a commercial visualization package to a large scale system and the integration of this code with the Access Grid. Example use cases from Materials Science are considered.