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Sachiko Kawachiya

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Publications by Sachiko Kawachiya (bibliography)

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1998
 
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Kawachiya, Sachiko, Igarashi, Takeo, Matsuoka, Satoshi and Tanaka, Hidehiko (1998): Reduction of Overhead in Drawing Figures with Computer: Detailed Analyses of Drawing Tasks. In: Third Asian Pacific Computer and Human Interaction July 15-17, 1998, Kangawa, Japan. pp. 11-18.

1997
 
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Igarashi, Takeo, Matsuoka, Satoshi, Kawachiya, Sachiko and Tanaka, Hidehiko (1997): Interactive Beautification: A Technique for Rapid Geometric Design. In: Robertson, George G. and Schmandt, Chris (eds.) Proceedings of the 10th annual ACM symposium on User interface software and technology October 14 - 17, 1997, Banff, Alberta, Canada. pp. 105-114.

We propose interactive beautification, a technique for rapid geometric design, and introduce the technique and its algorithm with a prototype system Pegasus. The motivation is to solve a problem with current drawing systems: too many complex commands and unintuitive procedures to satisfy geometric constraints. The Interactive beautification system receives the user's free stroke and beautifies it by considering geometric constraints among segments. A single stroke is beautified one after another, preventing accumulation of recognition errors or catastrophic deformation. Supported geometric constraints include perpendicularity, congruence, symmetry, etc., which were not seen in existing free stroke recognition systems. In addition, the system generates multiple candidates as a result of beautification to solve the problem of ambiguity. Using this technique, the user can draw precise diagrams rapidly satisfying geometric relations without using any editing commands. Interactive beautification is achieved by three sequential processes: 1) inferring underlining geometric constraints based on the spatial relationships among the input stroke and the existing segments, 2) generating multiple candidates by combining inferred constraints appropriately, and 3) evaluating the candidates to find the most plausible candidate and to remove the inappropriate candidates. A user study was performed using the prototype system, a commercial CAD tool, and an OO-based drawing system. The result showed that users can draw required diagrams more rapidly and more precisely using the prototype system.

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

 
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30 May 2009: Modified
28 Apr 2003: Added

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Upcoming Courses

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User-Centred Design - Module 3
72% booked. Starts in 23 days
 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

 
 
The Social Design of Technical Systems: Building technologies for communities. 2nd Edition
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
 
 
 
 
The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading