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Andrew Forsberg

 

Publications by Andrew Forsberg (bibliography)

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2001
 
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Zeleznik, Robert, Miller, Timothy and Forsberg, Andrew (2001): Pop through mouse button interactions. In: Marks, Joe and Mynatt, Elizabeth D. (eds.) Proceedings of the 14th annual ACM symposium on User interface software and technology November 11 - 14, 2001, Orlando, Florida. pp. 195-196. Available online

We present a range of novel interactions enabled by a simple modification in the design of a computer mouse. By converting each mouse button to pop through tactile push-buttons, similar to the focus/shutter-release buttons used in many cameras, users can feel, and the computer can sense, two distinct "clicks" corresponding to pressing lightly and pressing firmly to pop through. Despite the prototypical status of our hardware and software implementations, our current pop through mouse interactions are compelling and warrant further investigation. In particular, we demonstrate that pop through buttons not only yield an additional button activation state that is composable with, or even preferable to, techniques such as double-clicking, but also can endow a qualitatively novel user experience when meaningfully and consistently applied. We propose a number of software guidelines that may provide a consistent, systemic benefit; for example, light pressure may invoke default interaction (short menu), and firm pressure may supply more detail (long menu).

© All rights reserved Zeleznik et al. and/or ACM Press

1998
 
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Forsberg, Andrew, Dieterich, Mark and Zeleznik, Robert (1998): The Music Notepad. In: Mynatt, Elizabeth D. and Jacob, Robert J. K. (eds.) Proceedings of the 11th annual ACM symposium on User interface software and technology November 01 - 04, 1998, San Francisco, California, United States. pp. 203-210. Available online

We present a system for entering common music notation based on 2D gestural input. The key feature of the system is the look-and-feel of the interface which approximates sketching music with paper and pencil. A probability-based interpreter integrates sequences of gestural input to perform the most common notation and editing operations. In this paper, we present the user's model of the system, the components of the high-level recognition system, and a discussion of the evolution of the system including user feedback.

© All rights reserved Forsberg et al. and/or ACM Press

1996
 
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Forsberg, Andrew, Herndon, Kenneth and Zeleznik, Robert (1996): Aperture Based Selection for Immersive Virtual Environments. In: Kurlander, David, Brown, Marc and Rao, Ramana (eds.) Proceedings of the 9th annual ACM symposium on User interface software and technology November 06 - 08, 1996, Seattle, Washington, United States. pp. 95-96. Available online

We present two novel techniques for effectively selecting objects in immersive virtual environments using a single 6 DOF magnetic tracker. These techniques advance the state of the art in that they exploit the participant's visual frame of reference and fully utilize the position and orientation data from the tracker to improve accuracy of the selection task. Preliminary results from pilot usability studies validate our designs. Finally, the two techniques combine to compensate for each other's weaknesses.

© All rights reserved Forsberg et al. and/or ACM Press

 
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