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This demo runs smoother in Chrome.
What you just experienced is a demo for a consulting project where I trained a model to detect nods. The model was created and trained in Pytorch and then ported to Deeplearn.js to run in the browser.
The green bar is the probability of a nod as inferred by the model. When the bar extends past the black notch, we can be fairly certain that we have had a nod.
There is a slight (~2s) delay between a nod and its detection.
More details to come …