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It's amazing that this shows our visual system constantly doing a type of low level computation to calculate our stereoscopic 3D vision, and that we can "exploi
by cubefox 3y ago
It's amazing that this shows our visual system constantly doing a type of low level computation to calculate our stereoscopic 3D vision, and that we can "exploit" this hidden computational power to easily find image differences.
I remember reading that this was actually how Pluto was discovered: Someone compared a lot of photographic plates with this method. To clarify: You can take two images of part of the sky a short time apart. Stars won't move, planets will.
- GuB-42 3y agoFor Pluto, for what I know, they did use the technique of taking two images of the sky at different times and looked at them through a machine, but instead of relying on stereoscopic vision, they switched back and forth between the two, everything that isn't the regular star background would be moving or blinking. So, relying on movement perception.