Pointing with fingers, hands and arms for wearable computing

Pointing is a fundamental enabling operation for human-computer interaction across a broad spectrum of scenarios. The paper presents a study exploring how to develop a pointing system for truly wearable, rather than hand-held, computing. It describes a Fitts' law study of pointing based on motions in free-space captured using an inertial sensor pack. It compares performance when the pack is held in the hand, mounted on the back of the hand and finally on the wrist. The results show a significant, but numerically small, advantage in using the hands over using the upper arm only. This suggests that for wearable tasks where pointing is relatively infrequent a wrist based sensor pack may well be sufficient to enable effective and usable interaction.

[1]  Cheol-Hoon Lee,et al.  Development of a Single 3-Axis Accelerometer Sensor Based Wearable Gesture Recognition Band , 2007, UIC.

[2]  Shumin Zhai,et al.  The influence of muscle groups on performance of multiple degree-of-freedom input , 1996, CHI.

[3]  Bernt Schiele,et al.  Browsing patient records during ward rounds with a body worn gyroscope , 2007, 2007 11th IEEE International Symposium on Wearable Computers.

[4]  Bruce H. Thomas,et al.  Evaluation of Four Wearable Computer Pointing Devices for Drag and Drop Tasks when Stationary and Walking , 2006, 2006 10th IEEE International Symposium on Wearable Computers.

[5]  I. Scott MacKenzie,et al.  Towards a standard for pointing device evaluation, perspectives on 27 years of Fitts' law research in HCI , 2004, Int. J. Hum. Comput. Stud..

[6]  Bruce H. Thomas,et al.  Where Does the Mouse Go? An Investigation into the Placement of a Body-Attached TouchPad Mouse for Wearable Computers , 2002, Personal and Ubiquitous Computing.

[7]  I. Scott MacKenzie,et al.  An Evaluation of Two Input Devices for Remote Pointing , 2001, EHCI.

[8]  Noa M. Rensing,et al.  Eyeglass-based systems for wearable computing , 1997, Digest of Papers. First International Symposium on Wearable Computers.

[9]  Giancarlo Bo,et al.  Wearable Computing and Mobile Workers: The Aeronautic Maintenance Showcase in the WearIT@Work Project , 2006 .

[10]  G. L. Calhoun,et al.  Hands-free input devices for wearable computers , 1998, Proceedings Fourth Annual Symposium on Human Interaction with Complex Systems.

[11]  Jock D. Mackinlay,et al.  A morphological analysis of the design space of input devices , 1991, TOIS.

[12]  P. Fitts.  The information capacity of the human motor system in controlling the amplitude of movement. , 1954, Journal of experimental psychology.