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by loxias 1698 days ago
Interesting. I'm casually familiar with Video Amplification (the approach at SIGGRAPH a decade ago IIRC), but have never implemented it myself. A really cool result, using the changes in the phase of the basis vectors over time to infer motion, without having to do dense optic flow.

I'm curious how you would combine acoustic localization in 3 space with motion amplification. I unreservedly agree that they are both "super cool", but don't see how they tie together to make something greater than the sum of their parts.

The only thing I thought of is, if two data channels (video, audio) are registered accurately enough, one could maybe combine the spatially limited frequency information from both channels for higher accuracy?

For example: voxel 10,10,10 is determined (by the audio system) to have a high amount of coherent sound with a fundamental frequency of 2khz. Can that 2khz + 10,10,10 be passed to the video system to do something.... cool? useful? If we know that sound of a certain spectral profile is coming from a specific region, is it useful to amplify (or deaden) video motion with a same frequency?