YiyangXiong_Partition - A NPC Problem in ink recognition...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
A NPC Problem in ink recognition Strokes Segmentation Problem Shirley D. Marinkas Yiyan Xiong
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Introduction Digital ink – A digital representation of a user’s writing that they input using a pen or stylus on a tablet or mobile device screen Strokes – the input format of ink, represent with a sequence of points S = s 1 s 2 …s m s i = p 1 p 2 …p n p i = (x i , y i , t i )
Background image of page 2
Background Ink recognition – Analyze the user’s handwritten ink and have the computer correctly understand its meaning Preprocessing Segmentation Classification Ink Parsing Sketch Understanding
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background -- Preprocessing Stroke Invariance Scale Position Orientation Slant/skew Order/direction Filtering and Smoothing Dehooking
Background image of page 4
Background -- Segmentation Determine which strokes go together Determine which strokes should be apart Often uses proximity and timing information
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background -- Feature Want to distinguish sketch components from one another Good features are critical Extract important information Geometrical, statistical, contextual Examples include Arc length, histograms, cusps, aspect ratio Self-intersections, stroke area, etc…
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/14/2011 for the course COT 4610 taught by Professor Dutton during the Fall '10 term at University of Central Florida.

Page1 / 19

YiyangXiong_Partition - A NPC Problem in ink recognition...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online