tags
Signal processing

From this tweet:

The marginals $$fX$$ and $$fY$$ of a joint distribution $$f(x, y)$$ can be seen as the Radon transform of $$f(x,y)$$ in the $$θ=0$$ and $$θ=π/2$$ directions.

Similarly, a joint distribution can be thought of as an optimal transport solution to an undersampled tomography result.

## Bibliography

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