On Sun, Aug 2, 2009 at 12:54 AM, Daniel Drake <[email protected]> wrote:
> Michael Cronenworth wrote: > > The value came directly from the old driver. I have not tested it with a > > higher setting. I also don't know the default value. Feel free to play > > with it. > > > > I don't believe the value stands for minutiae. I need more than 10 to > > get a match. Maybe Daniel can chime in. > > This value was decided by the driver author, not me. > Yes I think "wxCover" the author chose 10 because the small aes1610 would get you fewer minutae to work with than other devices. See this quote from him nearly 2 years ago Nov 19, 2007, if you search the list archives you can find the early discussions around that time: "Well, I've spoke too soon in my last mail! I hadn't tried to enroll and verify. The images I get looks nice BUT for the moment, I have problems with enrollment and verification. I think the main problem is that I'm not getting enough minutiae. Usually, for a fingerprint that looks really nice, I get something like 10~15 minutiae. And if the image is not perfect (very often), the number is less than 10. Now, speaking about verification, I haven't manage to get it to match. The scores are always low. I think this is due to the poor number of minutiae. I don't know how to improve the situation. Is there some tweaking we can do with the algorithm which calculate minutiaes ? I'll try to see if I can make it work better with my code."
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