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sketch_understanding - Multi-Domain Sketch Recognition...

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1 Multi-Domain Sketch Recognition Lecture #12: Sketch Understanding Fall 2009 CAP 6105 – Pen-Based User Interfaces ©Joseph J. LaViola Jr. Joseph J. LaViola Jr. Fall 2009 Slides adapted from Alvarado, Multi-Domain Sketch Understanding, SIGGRAPH course #3, 2007. Recall Pen-Based Interface Dataflow Raw Stroke Preprocessing Segmentation Data Feature Extraction And Analysis Classification Ink Parsing Sketch Understanding Fall 2009 CAP 6105 – Pen-Based User Interfaces ©Joseph J. LaViola Jr. Make Inferences
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2 Building Recognition Systems Mechanical Engineering Strokes Domain Shapes UML Electrical Engineering Strokes Strokes Building each system requires: Domain Shapes Domain Shapes Fall 2009 CAP 6105 – Pen-Based User Interfaces ©Joseph J. LaViola Jr. sketch recognition expertise a lot of time (2-5 person years!) built in domain assumptions to improve recognition A Multi-Domain Sketch Recognition Engine Mechanical Engineering Strokes Domain Shapes UML Electrical Engineering Strokes Strokes Domain Shapes Domain Shapes Fall 2009 CAP 6105 – Pen-Based User Interfaces ©Joseph J. LaViola Jr. General Recognition Engine Shape descriptions Strokes Domain Shapes
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