Is the horse movement abnormal?

Hello! Very beginner AI/DL developer.

I am trying to build a program that takes a video as input (ideally of a horse), and provides the probability that the horse's movement is abnormal.

Based on my vague understanding of software development, ideally speaking, I'd have a program that can first compress the video to one with just the parts that I care about. For example:

1. First, I'd strip out the non-horse frames. Frames that do not contain a horse.
1. …

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