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A-Coord Input: Coordinating Auxiliary Input Streams for Augmenting Contextual Pen-Based Interactions

The human hand can naturally coordinate multiple finger joints, and simultaneously tilt, press and roll a pen to write or draw. For this reason, digital pens are now embedded with auxiliary input sensors to capture these actions. Prior research on auxiliary input channels has mainly investi-gated them in isolation of one another. In this work, we explore the coordinated use of two auxiliary channels, a class of interaction techniques we refer to as a-coord input. Through two separate experiments, we explore the design space of a-coord input. In the first study we identify if us-ers can successfully coordinate two auxiliary channels. We found a strong degree of coordination between channels. In a second experiment, we evaluate the effectiveness of a-coord input in a task with multiple steps, such as multi-parameter selection and manipulation. We find that a-coord input facilitates coordination even with a complex, afore-thought sequential task. Overall our results indicate that users can control at least two auxiliary input channels in conjunction which can facilitate a number of common tasks can on the pen.

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Khalad Hasan, Xing-Dong Yang, Andrea Bunt and Pourang Irani. 2012. A-Coord Input: Coordinating Auxiliary Input Streams for Augmenting Contextual Pen-Based Interactions. In Proceedings of the 30th international conference on Human factors in computing systems (CHI 2012). Austin, Texas. ACM, 805-814.

Bibtext Entry

@INPROCEEDINGS { khaladCHI2012,
    AUTHOR = { Khalad Hasan and Xing-Dong Yang and Andrea Bunt and Pourang Irani },
    TITLE = { A-Coord Input: Coordinating Auxiliary Input Streams for Augmenting Contextual Pen-Based Interactions },
    BOOKTITLE = { Proceedings of the 30th international conference on Human factors in computing systems (CHI 2012) },
    YEAR = { 2012 },
    PAGES = { 805--814 },
    PUBLISHER = { ACM },
    ADDRESS = { Austin, Texas },
}

Authors

Khalad Hasan

Khalad Hasan

PhD Student
Andrea Bunt

Andrea Bunt

Associate Professor
Pourang Irani

Pourang Irani

Professor
Canada Research Chair