Measuring the distance between cars or between the car and the camera

With the principles we talked about in the preceding section at hand, let's utilize them in order to measure distances in our application.

As we mentioned previously, we will measure from two different views. First, let's look at the bird's eye view.

Measuring the distance between cars in a bird's eye view

To be able to see cars from a bird's eye view, I fixed my camera to a window in my office, which is on the eighth floor, and let it face the ground. Here's one of the pictures I got from my camera:

You can see that the cars on the road are running from the left of the picture to the right. It is not an absolute bird&apos...