Saturday, November 8, 2008

Magic Paper: Sketch-Understanding Research

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

1 comment:

Nabeel said...

Yes good summary just a refresher course on the development of sketch technologies.