Sunday, November 8, 2015

Reading 24: SketchREAD: a multi-domain sketch recognition engine

Citation

Alvarado, Christine, and Randall Davis. "SketchREAD: a multi-domain sketch recognition engine." Proceedings of the 17th annual ACM symposium on User interface software and technology. ACM, 2004.

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Summary

SketchREAD (Sketch recognition ending for many domains) is a multi domain sketch recognition system capable of understanding freely drawn, messy, two dimensional diagrammatic sketches. The system provides a method for users to describe shapes which can be used to setup appropriate recognizers for the same. The system builds a Bayesian network and assigns probabilities for each interpretation given by the system.

Discussion

The system tries to model each shape by the set of rules and these rules can be used for recognizing objects later. It is much more intuitive than earlier methods as writing domain specific recognizer for each domain can be very tedious tasks. Rather the system lets the user to describe the shapes. An example showing the pattern used to describe a new shape:

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