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Re:Show HN: ChartGPU – WebGPU-powered charting library (1M p... by vlovich123 on Wednesday January 21, 2026 @06:30PM (#46713187)
I don't. I just remember watching a presentation on it and it always struck me that wavelets are an incredibly powerful and underutilized technique for data reduction while preserving quality in a quantifiable and mathematically justifiable way.

I don't have any papers in mind, but I do think that the critique around visual shape vs signal reconstruction may not be accurate given that wavelets are starting to see a lot of adoption in the visual space (at least JPEG2000 is the leading edge in that field). Might also be interesting to use DCT as well. I think these will perform better than LTTB (of course the compute cost is higher but there's also HW acceleration for some of these or will be over time).

Re:Show HN: ChartGPU – WebGPU-powered charting library (1M p... by dapperdrake on Thursday January 22, 2026 @08:45AM (#46719152)
This might be because JPEG already does FFT/DCT.