I love this! looked into doing a similar project, you're competing against Hudl but using the phone instead of custom hardware (always preferred). Highlight segmentation may be a challenge with SOTA cv methods, but there are lot of directions you can go in.
Yeah Hudl is definitely a beast in the space though I think of them as almost more focused on orgs and teams rather than consumers.
Re: highlight segmentation was and still is a challenge that we work on. In the beginning we had a hard time dealing with false positives when our models thought a shot was in but it wasn't. This has gotten better over time with more data and is hovering near 92% acc these days but obv not 100%. But i'm optimistic as data grows and the sota methods get better, this isn't the hardest ml problem in the world
