Why are hands difficult for ai images?
In: 250
At the end of the day, computers are still just fancy calculators. AI is just mathematics, specifically statistics. You feed an AI a tonne of images, some are a single hand with 5 fingers, some are two hands together with 10 fingers, maybe some fingers are bent or hidden behind something, maybe there are multiple people’s hands in the image. The images are flat, technically the AI doesn’t even understand 3D geometry and camera angles, or how joints and rotation works, so you’ve confused the shit out of it. Computer says, well on average an image of a person has 7 of these pointy fleshy things going in this direction so I’ll draw that, even though physiologically it makes no sense.
And when it screws up, it’s really obvious, because we humans do understand 3D geometry, and the basic biology of having exactly 5 fingers per hand, and the different ways they can bend. Hands are one of those things that you can’t really think about statistically, which is the only way the AI knows how. Unlike say, eyes, which are more or less always the same shape and in the same position on a face, or a nose which can be big or small or anywhere in between without going into the uncanny valley.
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