Chapter 14: Line-Following with a Camera in Python
In the last chapter, we saw how to use a camera to follow and track objects. In this chapter, we will be extending the camera code to create line-sensing behavior.
We will look at where robots use line following and how it is useful. We will also learn about some of the different approaches taken to following paths in different robots, along with their trade-offs. You will see how to build a simple line-following track.
We will learn about some different algorithms to use and then choose a simple one. We will make a data flow diagram to see how it works, collect sample images to test it with, and then tune its performance based on the sample images. Along the way, we'll see more ways to approach computer vision and extract useful data from it.
We will enhance our PID code, build our line detection algorithm into robot driving behavior, and see the robot running with this. The chapter closes with ideas on how you can...
