segmentation - 1 Fall 2008 CAP 6938 Topics in Pen-Based...

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Unformatted text preview: 1 Fall 2008 CAP 6938 Topics in Pen-Based User Interfaces Joseph J. LaViola Jr. Ink Segmentation Lecture #7: Ink Segmentation Joseph J. LaViola Jr. Fall 2008 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Recall Pen-Based Interface Dataflow Raw Stroke Data Preprocessing Segmentation Feature Extraction And Analysis Classification Ink Parsing Sketch Understanding Make Inferences 2 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Segmentation Determine which strokes go together Determine which strokes should be apart Can be done in real-time or in batch Often uses proximity and timing information Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Grouping Strokes Together Why? Multiple strokes can form one symbol math symbols, shapes, etc want to pass all strokes that make up a symbol to recognizer 4 strokes 2 strokes 4 strokes 3 strokes 3 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Grouping Strokes Together Basic Approach Check to see if two or more strokes intersect if they do then group them together Can use simple line segment intersection tests Problems ink strokes ink polyline...
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This note was uploaded on 06/13/2011 for the course CAP 6938 taught by Professor Staff during the Spring '08 term at University of Central Florida.

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segmentation - 1 Fall 2008 CAP 6938 Topics in Pen-Based...

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