Browsing by Author "Coffey, Dane"

Now showing 1 - 3 of 3
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    BioWIM: A MultiSurface, MultiTouch Interface for Exploratory Visualization of Biomedical Data
    (2010-10-04) Coffey, Dane; Keefe, Daniel F.
    This paper presents the BioWIM, a multi-surface, multi-touch interface for exploring visualizations of complex biomedical environments using a semi-immersive virtual reality (VR) display. The BioWIM reinterprets the traditional world-in-miniature (WIM) VR metaphor within the context of navigating visualizations based on medical imaging data and using the unique capabilities provided by coupling a multi-touch table with a stereoscopic display wall. A "Window to the World" metaphor is used to navigate a detailed 3D scene displayed on the vertical surface by manipulating widgets and making touch gestures on top of medical imaging data displayed on the table. The technique supports navigation through complex environments while maintaining context. The results of a controlled user study comparing the BioWIM to a more traditional touch interface demonstrate improvements in accuracy in a compound search and size judgment task when using the BioWIM. An interpretation of these results and discussion of design principles and lessons learned is presented.
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    Toward Simulation-Based Medical Device Design: Integrating High Performance Cloud FEA Computing Into Intuitive Design Modeling
    (2012-06-13) Lin, Chi-Lun; Coffey, Dane; Erdman, Arthur; Keefe, Daniel
    We present a new approach to simulation-based medical device design by integrating current CAD and FEA systems and developing natural human-computer interfaces to control the resulting integrated system. In order to utilize the high performance FEA computing power, a network communication program was developed and a Python script was used to initialize simulations and read calculated results. A complete design process of a breast biopsy cannula was demonstrated.
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    Using Virtual Reality Environments for Medical Devices Design
    (2009-10-07) Konchada, Vamsi; Coffey, Dane; Borazjani, Iman; Sotiropoulos, Fotis; Erdman, Arthur; Interrante, Victoria; Keefe, Daniel F.
    There is an urgent need for improved design methodologies and tools that give designers meaningful and accurate feedback early in the design process; virtual reality can be used to fill this need.  Virtual reality provides a highly engaging environment that allows user to experience and comprehend abstract concepts.  It can allow designers to broadly explore the space of potential design alternatives, and to expand the boundaries of complex designs that are possible given today's computer assisted tools.  Medical device researchers seek to better understand the complexities of cardiac anatomy, visualize how surrounding structures affect device function and deployment, and ultimately design more effective devices. Virtual representation combines visual graphics, virtual reality applications, finite element analysis based on the architecture of a 3D model. Introducing virtual reality based tools into the process of medical device design can significantly improve the process. We present our initial work aimed at developing new immersive visualization and interactive design tools for improving the medical device design process. Our initial work focuses on developing 3-dimensional visualizations of simulated blood flow through mechanical heart valves. Our goal is to develop 3D user interfaces for refining medical device designs within the context of patient-specific anatomy and simulated flow data.