From MPTK books to Wivigrams

Here is a sonogram of the introduction to “Pictor Alpha” by Curtis Roads.

sonogram.png
Now, we make a dictionary of Gabor atoms of various sizes, and decompose this signal into 5000 atoms using MPTK. How can we visualize the output?
One of the easiest ways is by a superposition of the Wigner-Ville distributions of the atoms, scaled by their energy in the decomposition.
This produces the following picture.

wivigram.png
The code I used to generate this is here.
Much more can be done to the code by way of software engineering to streamline it; but it is only to serve as a simple example of how to do such visualizations.

Now, time to look at doing the same but in python.

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