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A comment on Physicists are building neural networks out of vibrations, voltages and lasers. Parent comment

Re:Physicists are building neural networks out of vibrations... by ulnarkressty on Wednesday June 01, 2022 @03:03PM (#31586515)
An even better one - holding an image at the focal point of a lens produces its Fourier transform at the focal point on the other side of the lens[0]. It is used for "analog" pattern matching[1]. There is an interesting video explaining this on the Huygen Optics Youtube channel[2].

[0] - https://en.wikipedia.org/wiki/Fourier_optics

[1] - https://en.wikipedia.org/wiki/Optical_correlator

[2] - https://www.youtube.com/watch?v=Y9FZ4igNxNA

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Re:Physicists are building neural networks out of vibrations... by dhon_ on Wednesday June 01, 2022 @10:42PM (#31590675)
Fascinating, thank you for sharing!
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