As a weekend project, some colleagues and I built a computer-vision pool-ball tracker a few years back.<p><a href="https:&#x2F;&#x2F;gocardless.com&#x2F;blog&#x2F;hacking-on-side-projects-the-pool-ball-tracker&#x2F;" rel="nofollow">https:&#x2F;&#x2F;gocardless.com&#x2F;blog&#x2F;hacking-on-side-projects-the-poo...</a><p>Would be awesome to use a high-framerate camera for this.