dual_carriageway t1_iueqojt wrote on October 30, 2022 at 7:42 PM

Another option could be tracking the audio(if there is any) - the ball hitting the racket should make a similar ish noise each time and you may be able to automate detecting impacts using that

michelin_chalupa t1_iuesch3 wrote on October 30, 2022 at 7:53 PM

Building off this: could annotate a hundred or so impacts, fine tune an audio embedding, and do a similarity search over the video audio.

Could work pretty well, since players grunting would probably be pretty distinct from other audio.

quichemiata t1_iuh4w01 wrote on October 31, 2022 at 8:30 AM

A player can grunt and Miss though

michelin_chalupa t1_iui244a wrote on October 31, 2022 at 2:25 PM

Yep.

ChaosAdm OP t1_iuesrn5 wrote on October 30, 2022 at 7:55 PM

That's an interesting alternative. Finding all instances of a particular sound in a video will be another mini project I will start looking into to test this approach as well!

impossiblefork t1_iuhof3j wrote on October 31, 2022 at 12:36 PM

For hard baseline shots that would work, but not necessarily for slices and the touch shots that are intentionally soft.

ChaosAdm OP t1_iuiqrb5 wrote on October 31, 2022 at 5:13 PM

This worked quite wonderfully and saved me manual labor, exceptions to a few captured sequences of a replay/side camera view of a replay where the frames are not the standard view of the court. (I manually deleted the folders for such exceptions)