In every reported case where police mistakenly arrested someone using facial recognition, that person has been Black::Facial recognition software has always had trouble telling Black people apart, yet police departments are still using it.

  • Mic_Check_One_Two@reddthat.com
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    1 year ago

    This isn’t new. It’s been a known problem for a long time, because facial recognition software is trained using white people. So it gets really really good at differentiating between white people. But with black people as a tiny fraction of the sample data, it basically just learns to differentiate them with broad strokes. It’s good at telling them apart from white people, but not much else.

    • phx@lemmy.ca
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      1 year ago

      It’s not just a training issue. Lighter (color) tones reflect. Dark tones absorb. There have been lots of issues with cameras or even just sensors having issues with people having dark skin tones because the lower reflectivity/contrast of dark tones. 3D scanners - even current models - have similar issues with objects having black parts for similar reasons. Training on more models can help, but there’s still an overall technical difficulty to overcome as well (which is also a good reason that using facial recognition in this manner is just bullshit, period).

      • Shihali@sh.itjust.works
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        1 year ago

        As a technological problem it could have a technological partial solution: the darker the skin, the higher the threshold to declare a match. This would also mean more false negatives (real matches not caught by the software) but not much to do about that.

    • Chunk@lemmy.world
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      1 year ago

      I’m interested what dataset they’re using because simply adding more black people to the training set seems like a pretty straightforward fix.

      • elephantium@lemmy.world
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        1 year ago

        It seems like past mugshots would be an ideal part of the training set. Are they not using those?

        Personally, I’m leaning towards “It’s not the image recognition program that’s the problem here.”

  • Obsession@sh.itjust.works
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    1 year ago

    Isn’t face recognition just going to be inherently rly less reliable on darker skinned people? Their features would certainly have less contrast on darker skin, no?

    • charles@lemmy.world
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      1 year ago

      Why not expose pictures longer to get better features of darker skinned people and less accurate of lighter skinned people, leading to more false arrests of lighter skinned people?

    • firadin@lemmy.world
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      1 year ago

      Doesn’t the fact that a technology is fundamentally discriminatory mean we should question the use of that technology? Not just shrug our shoulders and say too bad?

      • Throwaway@lemm.ee
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        1 year ago

        Shouldn’t use it at all, but the tech isn’t intentionally malicious, just a fact of the tech.