I’m working on a school project and basically, I have a vehicle moving between 2 walls with a camera at the top, looking at the truck from an aerial view. I have a motor controlling the truck externally(don’t worry about this) but I need to measure how close the truck gets to the walls on either sides which I’ll feed into my existing code that makes the truck move. How could I go about this?

I’ve thought about different ways of doing this.

1. I have used Canny edge detector to get the edges of the vehicle and wall but don’t know how to measure the distance between the edges.
2. I’ve thought about using contours but also don’t know how to get the distance between 2 contours in a video feed.
3. I’ve also thought about ditching the measurements from the walls and get how far to the left or right the truck moves (since I already know the width of the road), and then stop the truck when it moves too much in either direction so it doesn’t hit a wall, but with that, when it comes to a bend in the road, the truck will completely stop when turning.
   I can’t think of any other way to do this. I need help with the Python code to be able to do this.