I was taught in school that the algorithm was an inverted 3d Fourier Transform. ... | Hacker News

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		geoduck14 on Oct 2, 2021 \| parent \| context \| favorite \| on: Godfrey Newbold Hounsfield, who revolutionized neu... I was taught in school that the algorithm was an inverted 3d Fourier Transform. I'm not sure if I believe that now.

dreamcompiler on Oct 2, 2021 | [–]

Sort of.

https://en.wikipedia.org/wiki/Radon_transform#Relationship_w...

throwaway81523 on Oct 3, 2021 | [–]

As I remember, Hounsfield originally used a much worse algorithm than that, although it was still workable and let him build usable machines. Later ones were more efficient due to using better math, but Hounsfield's got the job done.

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