large 2d dft from small 2d dft

Newsgroups	sci.image.processing
Date	2021-06-14 16:13 -0700
Message-ID	<fb3c4043-5a56-427d-aa75-4cbe8c4fa6ebn@googlegroups.com> (permalink)
Subject	large 2d dft from small 2d dft
From	Edward Montague <sciwiseg@gmail.com>

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 You may of heard about the recent avalanche in the Himalayas .

 Large scale 2D DFTs can help predict such calamities by finding areas where lanslides have occured. 

 These large 2D DFTs  are best computed using smaller 2D DFTs.

 Does anyone, within this group, have an explanation as to how this is done.

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large 2d dft from small 2d dft Edward Montague <sciwiseg@gmail.com> - 2021-06-14 16:13 -0700

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