kristinbranson / APT

Animal Part Tracker
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off by 1 error in the perframe feature timeline? #347

Closed arobie closed 3 years ago

arobie commented 3 years ago

I think the perframe features time line lags the video by a frame.

allenleetc commented 3 years ago

What feature are you looking at, something like imported/dx?

For something like imported/x, it seemed right to me; for dx, the current convention seems to be that "the timeline value represents the forward diff eg the step necessary to reach the next/following frame". Does this agree with your observation?

arobie commented 3 years ago

Yes, you're correct dx looks exactly like you describe. Ok. I see, so a peak in velmag means a large movement between this frame and next, as opposed to a large movement to get to this position. I can work with that.