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This is easily the best video overview on wavelets I've seen. I've used wavelet transforms on and off for years for things like image compression, harmonic ana
by ohazi 4y ago
This is easily the best video overview on wavelets I've seen.
I've used wavelet transforms on and off for years for things like image compression, harmonic analysis, and currently brain research, and I've always been somewhat disappointed in the quality of material that's out there explaining how wavelets work and how to use them effectively.
There's a small amount of "abstract math" heavy material but relatively little that's focused on using it for engineering, in contrast to all of the amazing material on Fourier transforms.
- psychphysic 4y ago> currently brain research Random shot in the dark. What do you think of the Free Energy Principle?
- ohazi 4y agoI don't really have a horse in that race... it seems like a reasonable idea, but I don't think we're anywhere close to having the tools to confirm/deny it, or even to just observe what's going on with enough fidelity to make a guess. My view of neuroscience is that we're decently good at figuring stuff out at the very very low level (e.g. behavior of complex molecules, classification of cell types and basic low level functions), and at the very high level (e.g. "this region is responsible for speech"), but haven't really made the right breakthroughs for figuring out the mid level (e.g. "how exactly does this ball of 50 million neurons perform its function, architecturally"). This theory seems to lie in that middle area.
- psychphysic 4y agoThanks!
- peter_d_sherman 4y ago>This is easily the best video overview on wavelets I've seen. Agreed completely! That's why I submitted it to HN! <g>