Page 2 - are there any one who works on iris recognition project?

there are 5 main steps in iris recognition
1- image acquisition .
2- image preprocessing .
3- iris localizing .
4- building template .
5- iris matching .

Wow, congratulation. Me too, i hope u don't mind if u send u'r code to me too... please...

hi there, I'm working also in iris recognition system. I read daugmans, and many papers. I' using matlab to implement it. I downloaded the data base from htttp://www.sinobiometrics.com after filling in that form
and I'm still working on it....
we exchange information. ;?

first: GS300 plz tell us how could y detect the iris. with daugman's integrodifferential equation, hough transform, thersholding or how?

second: how could y extract iris features, and what type of wavelet did you use? .... if you used gabor wavelet, how did you implemented it in matlab?

demo project had been delivered. did it were in matlab only or you linked your code to other language (i.e: Visual c++) if so and you don't mind sen me an Exe at anas_mesrah@hotmail.com
Good luck,
many thanks,

Anas...

First We must detect two boundaries the iris boundary and the pupil boundary
we didn't use daugman equation .
we used the fact that the circle in the computer is not a real circle !!! to detect the outer boundaries of the iris ,
and we got good results with our database
we determined the tallest 2 lines in the outer boundary of the iris and computing the distance between them to compute the radius .

that's good but there's a critical problem. if the eye is aaffected by eyelashes or eyelids, then this will give you very bad results ......

another thing:
this can be applied easily on puiple by thersholding the image and get the max 2 lines.

How could you apply this on the iris?
plz answer me as faster as you could,
thanks alot.

Anas ...

I think you didn't work in an Iris recognition system. But you may have the idea from any paper(from millions available online) or you may have the source code Libor Masek

> this source code is available online at this link:

http://www.csse.uwa.edu.au/~pk/stud...sourcecode.html

that code doesn't use the fact that raduis is the tallest line in circle, but it use the hough transform to find both iris boundaries and puiple boundaries.

Do you have test results for this method ,, I need it to compare with my
results ....
I determined some requirements on the testing images (( logically true )) to prevent eyelashes or eyelids affects on the iris .

congrate for u're graduation.
yes i need help. can u help me to build a matlab program to make an iris recognintion system??

mmm, i've downloaded the program from this site but it seems don't work? can u help me how to use this program? because after i call the program from matlab, it reply an error message.

http://www.csse.uwa.edu.au/~pk/stud...sourcecode.html

you may be running the program in matlab version older than 6.5 release 13.

if it's not the error tell us how did you tried to use the program. it may be one of the parameters to the function.

thanks,
Anas ....

hi!

Everytime I run createiristemplate.m there is error in line 42 [stat,mess]=fileattrib(savefile); ....
(I did some changes in code)

if somebody can tell me how you made it to work I would be so grateful!!! Sourcecodes or etc...

this error is because you are using version less than 6.5 (release 13) even release 12 doesn't in clude this function

Thank to anasMe for helping me before. I've done with the command "createiristemplate".

I need u're help again,
1. how to match between one image to another?
2. how to use "gethammingdistance" or "shiftbits" command?

I think you are in need to matlab refrence. the help is very good for this. But...
you can match 2 images as follow:
get the template and mask from createIristemplate function of the first and other image. then pass the templates and masks to the gethamming distance function.
the return value calculate the hamming distance wanted to match the images(according to daugman's algorithm)-you have to read this paper-.
gethamming distance function call the shiftbits function.see the code.

Anas ....