Author: Randall Davis
Summary:
Why sketch? more intuitive. Difficulty in sketch recognition - order of strokes, noise, segmentation, overtracing, more degree of freedom more difficulty.
Recognizing sketch - identifying primitives - identify the shape based on order of strokes, set of geometric constraints or based on template . LADDER provides us a method to define geometric constraints for shapes. Using a variation of HMM (dynamic bayes net) to capture the order of strokes. These help us to build a sketch interface (e.g UML) . PRoviding refinement to sketch recognition by generating near miss samples.
Discussion:
Its a good summary on LADDER
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1 comment:
Yes good summary just a refresher course on the development of sketch technologies.
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