Fingerprint Recognition Help

Goto page Previous 1, 2

EDAboard.com Forum Index -> Digital Signal Processing -> Fingerprint Recognition Help

Author

Message

prasha06

Joined: 07 Aug 2006
Posts: 1

07 Aug 2006 21:31 Re: Fingerprint Recognition Help

smileysam wrote:

iam attaching my report....if u feel that its useful or some improvements can be made plz message me..
Thanks... If possible plz donate a few points to me.... Smile

How can I download this:cry:

Added after 1 minutes:

why doesnt this allow me to downlaod:|

leekk8

Joined: 06 Sep 2005
Posts: 316
Helped: 15
Location: Malaysia

08 Aug 2006 4:27 Re: Fingerprint Recognition Help

prasha,

According to the forum rules, you're only allowed to download after 14 days you joined this forum and you must post more than 5 posts here.

You try help people here, after 14 days, you can download the file.

koosdoos

Joined: 08 Jun 2006
Posts: 55
Helped: 2

11 Aug 2006 5:53 Fingerprint Recognition Help

Hi again guys ,

Im using a MultiLayer Perceptron network using backpropagation in matlab. OK say you have 5 distances that you would like to use for fingerprint matching , will i feed this into the neural net as is or convert it to another type of input ? And what will be the output be that i can compare it to other fingerprints ?

Thanks
KoosDoos

leekk8

Joined: 06 Sep 2005
Posts: 316
Helped: 15
Location: Malaysia

11 Aug 2006 6:34 Re: Fingerprint Recognition Help

koosdoos,

It's up to you to choose how you want to feed in the input. You must make sure the input is sufficient to recognize the fingerprint image.

My opinion, fed in all the features that you have, it's better you can convert them into binary. Your output can be binary as well, indicating which fingerprint image.

For example, train the network using a set of features from a fingerprint images. The target output can be 0001, indicating first image. The another set of features input to train again with target output 0010, indicating second image, and so on.

It's a good practice you test the network to recognize the fingerprint using different methods in terms of input and output.

koosdoos

Joined: 08 Jun 2006
Posts: 55
Helped: 2

11 Aug 2006 6:48 Fingerprint Recognition Help

So what you are saying is convert the 5 distances to binary say 001010 and then use this as an input to a nearal net where input1=0 , 2=0 , 3=1 , 4=0 , 5=1 , 6=0 . Then train it to specify which image it compares the closest to ?

leekk8

Joined: 06 Sep 2005
Posts: 316
Helped: 15
Location: Malaysia

11 Aug 2006 8:20 Re: Fingerprint Recognition Help

koosdoos,

Yes, you get my mean.

However, keep in mind that the input must be sufficient to recognize the fingerprint image. I don't think 6 bit input is enough.

koosdoos

Joined: 08 Jun 2006
Posts: 55
Helped: 2

11 Aug 2006 8:36 Fingerprint Recognition Help

This is what ive got :

Center of fingerprint ( cx , cy )
5 minutiae (x,y,type.direction) points closest to center.
The 5 minutiae points distance from the center :
1) 15
2) 24
3) 11
4)56
5) 38

Now how do you think i should use these inputs for the network ( convert them to binary as you said? )
or just send them as is into the network ?

And how do i compare the output of this network to match a fingerprint ?

Thank you Smile

leekk8

Joined: 06 Sep 2005
Posts: 316
Helped: 15
Location: Malaysia

11 Aug 2006 14:10 Re: Fingerprint Recognition Help

koosdoos,

Maybe you can try to put all the features you have directly, and see what's the result.

After that, convert them into binary and see how's the result. For example, the centre point coordinate is (125,200), you convert them to binary, lets 8bits, so the coordinate already 16bits. Then plus the other features you have. So, guess that you have more than 100bits as inputs. I'm not sure this way can work or not, you can have a try.

You should take few images from same finger, so I guess you have around 20sets features from each finger. If you want to recognize 5 fingerprint, then you have 100 sets of features. You target output can be indicating the finger. Lets say 001 is first finger, 010 is second, 011 is third and so on. Then train your network using all these data until the network is converged.

It's advisable you test your network using different kinds of inputs and outputs then determine which way is the best for you.

vikramprataapsingh

Joined: 28 Apr 2007
Posts: 28

09 Jun 2007 18:57 Re: Fingerprint Recognition Help

i wants to work on biometrics fingerprint and eyeris scanners

from where i should start

RegUser_2

Joined: 24 Dec 2001
Posts: 235
Helped: 2

09 Jun 2007 19:13 Re: Fingerprint Recognition Help

You guys sholdn't shy to use the search on this forums. Here for example is similar topic Fingerprint matching with 78 replies

http://www.edaboard.com/viewtopic.php?t=128268

kali

Joined: 20 Nov 2004
Posts: 13

10 Jun 2007 11:59 Re: Fingerprint Recognition Help

Hi,

Pleasec check also dsp-bg.info

cheers!

syerwin

Joined: 06 Jul 2007
Posts: 1

06 Jul 2007 4:34 Re: Fingerprint Recognition Help

hi ..

i have a problem to reconized fingerprints using eigenface method..

can some one give me some clue ??

please tell me ASAP. coz im in a rush to finish my thesis... help....

thanks...

lovable_bhavin

Joined: 29 Jul 2007
Posts: 2

05 Aug 2007 1:08 Re: Fingerprint Recognition Help

Hello All,

I am doing fingerprint verification as my final year project. I am using histogram equilization and Fourier transform for image enhancement and threshold method for binarization. I have done upto Thinning and now all my ridges are 1 pixel wide. But I am confused in Minutiae extraction. Can anyone please help me??

Hi leek you can perhaps help me with the solution. Thanks in advance.

prathamesh

Joined: 16 Mar 2008
Posts: 6

20 Mar 2008 14:38 Fingerprint Recognition Help

I am currently trying to implement fingerprint recognition system using ARM7 core MCU.
I am finding quite difficult to perform filtering (gabor)because of heavy memory constraints.(RAM).
What shoul I do?

AlexLim

Joined: 21 Oct 2009
Posts: 2

02 Nov 2009 2:01 Re: Fingerprint Recognition Help

Hi guys

I havd stuided fingerprint recognition these days.
Especially, I have much interest in direct-scale minutiae extraction(Maio's algorithm).
I need some help.(papers, matlab codes, C code, and so on.)
Please help me.
Thanks in advace.

I can't have PM cause of I'm new here.

My contact point :
syschip(at)korea.com