• OhmsLawn@lemmy.world
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    4 months ago

    I used to work on diesel engines. I’d end up with different looking fingerprints all the time from grease, oil random little cuts, etc. I’d hope this tech is better able to discern fingerprints from noise. It was a little annoying.

    • Avid Amoeba@lemmy.ca
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      4 months ago

      It might not be. If your fingerprints are physically changing, then an accurate scanner should not recognize a fingerprint that’s changed after the fact. If anything you’re looking for a less accurate scanner to help with this issue. But a less accurate scanner could let others in your phone too.

      A family member is a massage therapist and no fingerprint reader has managed to recognize their fingers. Not even the old capacitive types in the rear. They don’t even recognize there’s a fingerprint present. It’s like tapping with a wiener.

      • BigPotato@lemmy.world
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        4 months ago

        1.) Used to be a dishwasher and even the government had a hard time getting my prints.

        2.) A wiener (that’s attached to a human) can actually be used and make a recognizable print on a fingerprint reader. (Not recommended for daycare workers.)

    • skuzz@discuss.tchncs.de
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      4 months ago

      The tech has been in Samsung phones for several years, and is good enough that one’s fingerprint will read through vinyl gloves if they aren’t too scrunched up. It’s fast and decent.

      Does make me wonder though, it’s a Qualcomm tech. Does that mean Google is finally going back to Qualcomm chips? The pixel modems have been trash ever since they left.

      • ℛ𝒶𝓋ℯ𝓃@pawb.social
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        4 months ago

        Yeah, I instinctively tried to open mine with vinyl gloves on once and immediately thought “I’m dumb, gotta take these gloves off first.” That was a good shock when it actually worked first try, much confusion…

        • skuzz@discuss.tchncs.de
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          4 months ago

          It makes sense if you think about it, ultrasonic vibrations will “see through” the glove and detect the finger ridges beyond. If the glove is scrunched up, it “looks” like finger ridges that aren’t yours, which will then not match.