Discussion

Ask HN: OpenCV – How would you track the spinning of a 'wheel'?

So I want to track how many times a wheel spins. I have a few ideas, but I'm curious about alternative solutions.

My solutions all require placing a marker on the wheel and tracking its path. I'm okay with using a marker.

Since I want this solution to work with a night vision camera, I can't be dependent on color. So I'm leaning towards looking for a unique shape that wouldn't be found in the environment. e.g., a Star

I know this solution seems rather simplistic and limited, but I'm not trying to build a very flexible or intelligent solution.

What I've built already works for a very sterile environment, translation - a white background with a green circle moving in a circular motion.

This is just a fun weekend project.

2 points mrburton 8 years ago 5 comments

Discussion

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton