Qt 5 and OpenCV 4 Computer Vision Projects

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's eye view, but we can approximate the distance between the cars using the method we talked about in the preceding section. Let's do this in our code.

In the capture_thread.cpp source file, we will add a new function named distanceBirdEye:

 void distanceBirdEye(cv::Mat &frame, ...