Bad lighting, sunglasses, clothing, and more can either flummox AI facial recognition systems or lead to false positives.

Of course, we already have human forensic facial specialists, and a better understanding of their expertise could help train their computer counterparts.

A points system incentivized the experts to uncover the fewest possible features and another version of the experiment individually uncovered the features at random.

“The combination of relying on features known to be useful, like ears, with adjusting when needed, hasn’t been documented before.”

Instead the findings may be useful for training both human and AI facial specialists in the future.