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High precision touch screen interaction

High precision touch screen interaction Ft. Lauderdale, Florida, USA ¢ April 5-10, 2003 Paper: Input Interaction High Precision Touch Screen Interaction Pär-Anders Albinsson *¶ paalb@foi.se Swedish Defence Research Agency, Division of Command and Control Systems Link ping, Sweden * § Shumin Zhai §¶ zhai@almaden.ibm.com ¶ IBM Almaden Research Center 650 Harry Road, San Jose, CA 95120 USA Department of Computer and Information Science Link ping University Link ping, Sweden ABSTRACT Bare hand pointing on touch screens both benefits and suffers from the nature of direct input. This work explores techniques to overcome its limitations. Our goal is to design interaction tools allowing pixel level pointing in a fast and efficient manner. Based on several cycles of iterative design and testing, we propose two techniques: Cross-Keys that uses discrete taps on virtual keys integrated with a crosshair cursor, and an analog PrecisionHandle that uses a leverage (gain) effect to amplify movement precision from the user ™s finger tip to the end cursor. We conducted a formal experiment with these two techniques, in addition to the previously known ZoomPointing and Take-Off as baseline anchors. Both subjective and performance measurements indicate that PrecisionHandle and Cross-Keys complement existing techniques for touch screen interaction. Categories & Subject Descriptors: http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

High precision touch screen interaction

Association for Computing Machinery — Apr 5, 2003

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Datasource
Association for Computing Machinery
Copyright
Copyright © 2003 by ACM Inc.
ISBN
1-58113-630-7
doi
10.1145/642611.642631
Publisher site
See Article on Publisher Site

Abstract

Ft. Lauderdale, Florida, USA ¢ April 5-10, 2003 Paper: Input Interaction High Precision Touch Screen Interaction Pär-Anders Albinsson *¶ paalb@foi.se Swedish Defence Research Agency, Division of Command and Control Systems Link ping, Sweden * § Shumin Zhai §¶ zhai@almaden.ibm.com ¶ IBM Almaden Research Center 650 Harry Road, San Jose, CA 95120 USA Department of Computer and Information Science Link ping University Link ping, Sweden ABSTRACT Bare hand pointing on touch screens both benefits and suffers from the nature of direct input. This work explores techniques to overcome its limitations. Our goal is to design interaction tools allowing pixel level pointing in a fast and efficient manner. Based on several cycles of iterative design and testing, we propose two techniques: Cross-Keys that uses discrete taps on virtual keys integrated with a crosshair cursor, and an analog PrecisionHandle that uses a leverage (gain) effect to amplify movement precision from the user ™s finger tip to the end cursor. We conducted a formal experiment with these two techniques, in addition to the previously known ZoomPointing and Take-Off as baseline anchors. Both subjective and performance measurements indicate that PrecisionHandle and Cross-Keys complement existing techniques for touch screen interaction. Categories & Subject Descriptors:

There are no references for this article.