1. anon(677651)'s Avatar
    I guess my hands get wrinkly after washing dishes and sensor doesn't recognize it?
    11-07-2015 09:58 PM
  2. atg284's Avatar
    Looks like you shouldn't have dish washing duties any more!
    11-07-2015 09:59 PM
  3. anon(677651)'s Avatar
    Looks like you shouldn't have dish washing duties any more!
    LolI wish I don't have to anymore lol else I can't unlock my phone!
    atg284 likes this.
    11-07-2015 10:14 PM
  4. hallux's Avatar
    lol, I was going to post a similar comment, same applies to post-shower fingers...
    anon(677651) likes this.
    11-07-2015 10:19 PM
  5. anon(677651)'s Avatar
    lol, I was going to post a similar comment, same applies to post-shower fingers...
    Haha good to know I am not the only one lmao
    11-07-2015 10:29 PM
  6. Mrrikki's Avatar
    Well known issue when fingers absorb water and become slightly pruned.

    This explains it:

    Many fingers wrinkle or shrivel when immersed in water. When used for biometric identification, the recognition rate for wrinkled fingers degrades. The impact of wrinkling has so far not been well-understood. In this study, we present an investigation of how the finger-skin expansion due to wrinkling impacts the quality of scanned finger prints and characterize the qualitative changes that affect recognition. We also introduce the Wet and Wrinkled Finger (WWF) database that we will make available to other researchers. In this database of 300 fingers, 185 are visibly wrinkled after immersion; multiple images of dry and immersed fingerprints were acquired. In this paper, we present baseline recognition rates on WWF using two algorithms a commercial fingerprint recognition algorithm and the publicly available Bozorth3 matcher. Specifically, we show a degradation in accuracy with both algorithms when comparing Dry-finger to Dry finger verification with Dry-finger to Wet-finger verification. We analyze performance on a per-finger basis and note a difference in accuracy amongst fingers, and as consequence make recommendations about which fingers to use in environments where fingers are apt to be wet. Additionally, we propose an implementation of a classifier that can decide if the incoming query is wrinkled.

    Source http://ieeexplore.ieee.org/xpl/login...mber%3D6117594

    Posted via the Android Central App
    mhettrich likes this.
    11-08-2015 05:34 AM
  7. SeanNYC76's Avatar
    Same happens with every other scanner including the iPhone 6s and GS6, Lol, just dry your hands.

    Posted via the Android Central App
    anon(677651) likes this.
    11-08-2015 07:18 AM
  8. anon(677651)'s Avatar
    Same happens with every other scanner including the iPhone 6s and GS6, Lol, just dry your hands.

    Posted via the Android Central App
    Maybe I should add a wet finger print too lol
    11-08-2015 09:56 AM
  9. TBolt's Avatar
    Maybe I should add a wet finger print too lol
    Tell us if that works. Not a bad idea.
    11-08-2015 10:02 AM

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