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Deepfakes are everywhere, but digital forensics experts are fighting back (www.science.org)
submitted 6 months ago by to c/technology@lemmy.world
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[–] 0 points 6 months ago (2 children)

Not all but a lot of those blue lines seem to be quite randomly drawn.

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  • [–] 11 points 5 months ago (1 child)

    For the hallway picture, each blue line corresponds with what should be a parallel line, along edges of square tiles or the corner of the floor and the two walls.

    For the dinosaur doll, each white dot connects a feature on the dinosaur to that feature's reflection.

    For the shadows, each white dot connects a corner of the object to the corner of the shadow.

    I think each of these lines is meticulously chosen.

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  • [–] 1 point 5 months ago* (last edited 5 months ago)

    I think the size of the lines and origin dots being used would allow the angle of any of those lines to be varied and converge or not converge. The worst case is the dinosaur foot where a different toe is selected in the mirror image than in the real. Perspective is largely numeric and you might assume AI to get that right, where AI falls down and therefore where to differentiate it is in its understanding of the objects in the image, so grossly a sixth finger or upsidedown tap. The dinosaur figurine has a phantom limb placed on its back in the mirror image, the paving in the shadows picture looks like mats laid over each other and in the soldier image they are illogically chained.

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