$1 Unistroke Recognizer in JavaScript
Jacob O. Wobbrock,1 Andrew D. Wilson,2 and Yang Li1
1University of Washington and 2Microsoft Research
This page implements the "$1 Unistroke Recognizer." Upon loading this page, only one template is defined for each unistroke below, but you can add more or define your own with the buttons beneath the canvas. Unistrokes should be regarded as fully rotation, scale, and position invariant. See our UIST 2007 paper (PDF) or a detailed pseudocode listing. Also see the new $N Multistroke Recognizer built upon $1.
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Make strokes on this canvas. If a misrecognition occurs, add the misrecognized unistroke as an example of the intended type.
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$1 Links and Downloads
ReferencesWobbrock, J.O., Wilson, A.D. and Li, Y. (2007). Gestures without libraries, toolkits or training: A $1 recognizer for user interface prototypes. Proceedings of the ACM Symposium on User Interface Software and Technology (UIST '07). Newport, Rhode Island (October 7-10, 2007). New York: ACM Press, pp. 159-168.Li, Y. (2010). Protractor: A fast and accurate gesture recognizer. Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI '10). Atlanta, Georgia (April 10-15, 2010). New York: ACM Press, pp. 2169-2172. |
$1 Implementations by Others
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