Question about your way to measure joint velocities

felixchenfy / Realtime-Action-Recognition

Apply ML to the skeletons from OpenPose; 9 actions; multiple people. (WARNING: I'm sorry that this is only good for course demo, not for real world applications !!! Those ary very difficult !!!)

MIT License

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Question about your way to measure joint velocities #65

Open flyingmrwang opened 3 years ago

flyingmrwang commented 3 years ago

Hi, I noticed that joint velocities is an important component of your feature to classify. While the input frame rate is not fixed.

I mean, for example, given a set of frames from the same speed of action video of: 10fps and 20fps, you may have totally different velocity from your function (roughly 2:1 in this case).

So, from my understanding, you should better take frame rate as parameter of function to calculate your joint velocities. Correct me if I am wrong.

felixchenfy commented 3 years ago

Hi, yes you are absolutely right.

For me, my training data and testing data are using the same framerate