1. By: Shane Serafin

2.  What is handwriting recognition  History  Different types  Uses  Advantages  Disadvantages  Conclusion  Questions  Sources

3.  Definition: The ability of a computer to receive and interpret handwritten input from sources such as paper documents, photographs, touch-screens, and other devices and turning it into a digitized form.

4.  1980s: Start of retail handwriting recognition system with electronic pen and electronic tablet  1989: Portable handwriting recognition computer: GRiDPad from GRiD Systems.  1997: First handwritten address interpretation system (HWAI) deployed by United States Postal Service  2007: First automatic writer recognition system: CEDAR-FOX

5.  Off-line Recognition ◦ Looks at image form of handwritten strokes ◦ Not real time ◦ Conversion image to letter coded text ◦ Static form ◦ Uses Optical Character Recognition or Intelligent Word Recognition ◦ Earlier form of handwriting recognition ◦ More difficult to decipher

6.  Character extraction by using an algorithm to look at: ◦ Aspect ratio ◦ Percent of pixels above the horizontal half way point ◦ Percent of pixels above the vertical half way point ◦ Number of strokes ◦ Reflected by Y axis ◦ Reflected by X axis ◦ Distance away from center

8.  On-line Recognition ◦ Real time transfer ◦ Handwriting is direct input from a device ◦ Sensor picks up pen movements ◦ Dynamic form

9.  Need a pen and touch sensitive surface  Software application looks at stroke order and directions of input  Converted into digital text  Uses fuzzy logic or neural network techniques

10.  Postal-Address Interpretation

11.  Handwriting Biometrics

12.  Signature Verification

13.  Preserve and Research Historical text

14.  Form of writing ◦ Tablets, Cell phones, Computers, Smart Boards

15.  CalliGrapher: ◦ Microsoft Windows Mobile Pocket-PC 2003/2003SE/2005 devices running Windows Mobile 6.0 and older  Graffiti: ◦ Android versions 1.6, 2.0, 2.1  CellWriter: ◦ Window System running on Linux  MyScript: ◦ PC and mobile devices

16.  Electronic data storage  More organized files  Easier data retrieval  Historical preservation  Can be easier form of writing  Verification methods

17.  Not always accurate  Unique style of writing  Spacing of letters or words  Poor images of text  Different languages  Modern handwriting compared to historical

18.  What handwriting recognition is  The different types  Importance of it

20.  http://science.howstuffworks.com/biometrics1.htm http://science.howstuffworks.com/biometrics1.htm  http://www.ehow.com/about_6552517_definition-handwriting- recognition.html http://www.ehow.com/about_6552517_definition-handwriting- recognition.html  http://www.ehow.com/info_8085619_software-handwriting- recognition.html http://www.ehow.com/info_8085619_software-handwriting- recognition.html  http://www.ehow.com/info_8658117_challenges-handwriting- recognition.html http://www.ehow.com/info_8658117_challenges-handwriting- recognition.html  http://www.cse.yorku.ca/course_archive/2004- 05/F/4441/HandwritingRecognition.pdf http://www.cse.yorku.ca/course_archive/2004- 05/F/4441/HandwritingRecognition.pdf  http://en.wikipedia.org/wiki/Handwriting_recognition http://en.wikipedia.org/wiki/Handwriting_recognition