63,953 research outputs found

    Design and Evaluation of Menu Systems for Immersive Virtual Environments

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    Interfaces for system control tasks in virtual environments (VEs) have not been extensively studied. This paper focuses on various types of menu systems to be used in such environments. We describe the design of the TULIP menu, a menu system using Pinch Gloves™, and compare it to two common alternatives: floating menus and pen and tablet menus. These three menus were compared in an empirical evaluation. The pen and tablet menu was found to be significantly faster, while users had a preference for TULIP. Subjective discomfort levels were also higher with the floating menus and pen and tablet

    Handwriting analysis for diagnosis and prognosis of Parkinson’s disease

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    At present, there are no quantitative, objective methods for diagnosing the Parkinson disease. Existing methods of quantitative analysis by myograms suffer by inaccuracy and patient strain; electronic tablet analysis is limited to the visible drawing, not including the writing forces and hand movements. In our paper we show how handwriting analysis can be obtained by a new electronic pen and new features of the recorded signals. This gives good results for diagnostics. Keywords: Parkinson diagnosis, electronic pen, automatic handwriting analysi

    Infancy and education in the writings of Gertrud the Great of Helfta

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    The German Benedictine nun Gertrud the Great of Heifta c.1256-1302 was one of the most highly educated of medieval women mystics. Unlike most religious women of the Middle Ages, she not only read Latin but also wrote it fluently and prolifically. Latin is the language of almost all her surviving writings: The Herald of God's Loving-Kindness, The Spiritual Exercises and (probably also written by her) The Book of Special Grace. The Herald consists of five books, although only Book 2 comes, quite literally, from the pen of Gertrud herself. The opening describes how she snatched up the writing tablet at her side and wrote the first section under divine inspiration (II, Prologue)

    MathBrush: An Experimental Pen-Based Math System

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    It is widely believed that mathematics will be one of the major applications for Tablet PCs and other pen-based devices. In this paper we discuss many of the issues that make doing mathematics on such pen-based devices a hard task. We give a preliminary description of an experimental system, currently named MathBrush, for working with mathematics using pen-based devices. The system allows a user to enter mathematical expressions with a pen and to then do mathematical computation using a computer algebra system. The system provides a simple and easy way for users to verify the correctness of their handwritten expressions and, if needed, to correct any errors in recognition. Choosing mathematical operations is done making use of context menus, both with input and output expressions
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