Re: Signature Recognition in Cocoa

2008-11-09 Thread Pierce Freeman
As I am not very familiar to signature recognition (as you may have noticed) where can I learn how to get the algorithm in code form? Also, are there other methods that could get a more precise output? Thanks, Pierce F. On 11/3/08 1:47 AM, Raphael Sebbe [EMAIL PROTECTED] wrote: If you have

Re: Signature Recognition in Cocoa

2008-11-09 Thread Michael Paluszek
There is a lot of information available http://www.ee.bilkent.edu.tr/~signal/defevent/papers/cr2010.pdf http://code.google.com/p/sigrecnn/ http://www.it.lut.fi/kurssit/03-04/01097/seminars/Kalenova.pdf Sincerely, Mike On Nov 9, 2008, at 7:14 PM, Pierce Freeman wrote: As I am not very

Re: Signature Recognition in Cocoa

2008-11-03 Thread Raphael Sebbe
If you have access to the temporal sequence of events (not just final image), DTW (Dynamic Time Warping) could be an easy approach. You would have to choose features (pressure, location, speed, acc) with respect to time, then record a few templates for the reference signature. The output of the

Signature Recognition in Cocoa

2008-11-02 Thread Pierce Freeman
I have been looking at various open source projects/sites but still can't find a way to check two signatures to see if they are the same in Cocoa. For example: On setup, User A writes his name on his tablet, then User B tries to sign in using an imitation signature, but it will return an