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OfflineChuangTzu
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The Constructive Aspect of Visual Perception
    #11031483 - 09/09/09 11:15 PM (14 years, 4 months ago)

I found this article while reading about phase conjugate mirrors:

The Constructive Aspect of Visual Perception

Abstract:

Quote:

Many Gestalt illusions reveal a constructive, or generative aspect of perceptual processing where the experience contains more explicit spatial information than the visual stimulus on which it is based. The experience of Gestalt illusions often appears as volumetric spatial structures bounded by continuous colored surfaces embedded in a volumetric space. These, and many other phenomena, suggest a field theory principle of visual representation and computation in the brain. That is, an essential aspect of neurocomputation involves extended spatial fields of energy interacting in lawful ways across the tissue of the brain, as a spatial computation taking place in a spatial medium. The explicitly spatial parallel nature of field theory computation offers a solution to the otherwise intractable inverse optics problem; that is, to reverse the optical projection to the retina, and reconstruct the three-dimensional configuration of objects and surfaces in the world that is most likely to have been the cause of the two-dimensional stimulus. A two-dimensional reverse grassfire algorithm, and a three-dimensional reverse shock scaffold algorithm are presented as examples of parallel spatial algorithms that address the inverse optics problem by essentially constructing every possible spatial interpretation simultaneously in parallel, and then selecting from that infinite set, the subset of patterns that embody the greatest intrinsic symmetry. The principle of nonlinear wave phenomena and phase conjugate mirrors is invoked as a possible mechanism.




And here's an easy to understand article on phase conjugate mirrors:

An Intuitive Explanation of Phase Conjugation


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InvisibleChespirito
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Re: The Constructive Aspect of Visual Perception [Re: ChuangTzu]
    #11032027 - 09/10/09 12:53 AM (14 years, 4 months ago)

If you need any help with that subject just hit me up, I definitely logged some hours in that subject as a whole.


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OfflineChuangTzu
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Re: The Constructive Aspect of Visual Perception [Re: Chespirito]
    #11036081 - 09/10/09 06:52 PM (14 years, 4 months ago)

No help needed over here, but I assume you're talking to everyone in general...  I was going to make some enlightened-sounding comments about those articles but I have a fever and my girlfriend keeps shoe-ing me away from my computer to "rest".

Phase conjugate mirrors are one of the things that make you stop and ask yourself even after you understand the model, "that seriously fucking works???"--even though you knew that it worked before you tried to understand how... 

I'll let the fever and drugs stop talking now.


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