DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811195

Abstract
Everyday more and more of our products, vehicles and buildings are designed with 3D digital tools. Essentially, digital prototyping has come of age, so much so that it could be considered unusual for something to be designed without a CAD tool being used at some point in the design process. Based on this success, are we done? In this talk I’ll argue that there are ideas yet to explore which are compelling and intrinsically linked to research on 3DUIs that may produce research contributions that lead to both the usual increase in productivity but also feed a user’s sense of joy, wonder, and satisfaction.

Bio
Gordon Kurtenbach is a director in the Applied Research Group at Autodesk. The group’s focus is on 3D interactive graphics with research in the areas of interaction technologies, modeling, animation and rendering. Prior to Autodesk, Gordon was a researcher at Xerox’s Palo Alto Research Center and Apple Computer’s Advanced Technology group. Gordon recieved his Ph.D. from University of Toronto in Computer Science and has many research publications and patents in human computer interaction. Research areas: human-computer interaction: input devices, bi-manual input, high degree of freedom input, menuing systems, UI for 3d graphics, human motor control and perception. Gord works with George Fitzmaurice, Jos Stam, and Azam Khan.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811236

Abstract
The Globefish is a novel desktop input device for efficient three-dimensional object manipulation and viewpoint navigation. The device was developed for the 3D graphics applications such as computer aided design (CAD), digital content creation (DCC) and 3D games. The Globefish consists of an elastically suspended 3D trackball, which provides a natural mapping for position-controlled 3D rotations. 3D translations are rate-controlled through small displacements of the trackball against the elastic counterforces of the elastic suspension. The device is operated by the fingertips allowing for precise interaction with virtual objects.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811234

Abstract
We designed a virtual hand-writing teaching system for children with handwriting difficulties due to attention or motor deficits, using a haptic interface that could provide a neutral, repetitive engaging approach to letter writing. The approach we took to accomplish this included: (a) Using letter primitives, (b) User friendly interface for teachers, therapists, subjects and parents, (c) Adjustable force and assessment mode, and (d) Quantitative reports.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811233

Abstract
Training systems based on hardware mockups provide physical fidelity at the expense of flexibility. Maintaining concurrency in these mock-ups can be time-consuming and expensive. Over the past several years, Southwest Research Institute (SwRI®) has worked with the United States Air Force to develop a generalized approach which uses purely virtual assets to provide training in a flexible environment in which configuration changes are made solely through software modifications. While a purely virtual approach has proven effective and flexible, it lacks the realistic interactions supported by the physical constraints present in mock-ups. This paper describes a novel approach to provide a more realistic interface while also extending the useful life of a training system which might otherwise be rendered obsolete. The technique combines virtual and real assets to provide haptic feedback. The interaction technique uses precision finger tracking combined with tactile sensors attached to the finger tip.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811232

Presentation Slides: [PDF]

Abstract
The development of next generation user interfaces that employ novel sensors and additional output modalities has high potential to improve the usability of applications used in non-desktop environments. The design of such interfaces requires an exploratory design approach to handle the interaction of newly developed interaction techniques with complex hardware. As a first step towards a structured design process we extended the MVC design pattern by an additional dimension “Environment” to capture elements and constraint from the real world.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811231

Abstract
In this paper we discuss the effect of two different wind output devices and compare head mounted wind with stationary wind, i.e., wind output of fix mounted fans on a rack. By means of a simple interactive 3D application we evaluated the subjects’ feeling of presence in a pre-test using a standard presence questionnaire. The preliminary results showed that wind output increases presence and indicated a tendency towards stationary wind output. This pilot study delivered us some initial guidance for future in-depth evaluation of wind output.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811230

Presentation Slides: [PDF]

Abstract
A virtual walkthrough system is built to demonstrate the unique capability of our wide field-of-view (FOV) head mounted projective display, which can theoretically achieve more than 180 degrees of horizontal FOV by utilizing a half-silvered hyperbolic curved mirror. A fast rendering algorithm developed for image distortion correction and performance analysis on the rendering speed and precision of distortion correction are described. The developed virtual walkthrough system has successfully provided the observer the sense of presence at an interactive frame rate.

DOI Bookmark: TBA

Presentation Slides: [PDF]

Abstract
Tape drawings are an important part of the form finding process in the automotive industry and thus for creating the final design and shape of cars during the product development process. Up to now this step is done on white boards in 2D and on clay models. In this poster we present a system that supports designers during the tape drawing process by transferring drawings created in 2D to the clay model by using projector-based spatial augmented reality. Furthermore we show an optional 3D input method for creating tape drawings directly on the clay model that additionally allows the transmission of information into a 2D representation using a registered projector-camera system. This system guarantees the consistency of information in different media and dimensions during the design process.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811228

Abstract
We designed a virtual hand-writing teaching system for children with handwriting difficulties due to attention or motor deficits, using a haptic interface that could provide a neutral, repetitive engaging approach to letter writing. The approach we took to accomplish this included: (a) Using letter primitives, (b) User friendly interface for teachers, therapists, subjects and parents, (c) Adjustable force and assessment mode, and (d) Quantitative reports. We evaluated 4 subjects. We obtained pre-training letter formation, then followed with a prescribed training session in which a fixed number of haptic driven repetitions was performed. Subjects were post-tested with free-form letter writing. Anecdotally, 2 children had obvious improvement in accuracy of letter formation, one slowed down speed with which he formed letters, which resulted in more legible handwriting. Children were engaged in the process and reported they had fun and would do it again.

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/3DUI.2009.4811227

Presentation Slides: [PDF]

Abstract
We present a hybrid user interface and gesture-based direct visual editing techniques for quick and rough object creation and manipulation in three-dimensional (3D) virtual environments (VEs). The user interface includes a novel table-prop to resemble an architect’s physical workbench. A tracked pinch glove and a stylus pen provide both rough and fingertip level precise spatial input. For quick placement, objects do not float in space, but instead obey a set of constrained physics laws. Experimental results indicate our design is effective for architectural massing study. Our work contributes to the hardware system design and novel gesture-based interaction techniques, which have the potential to bring VEs into practical use in architecture.