Calculating percentage of Bounding box overlap, for image detector evaluation

Question

In testing an object detection algorithm in large images, we check our detected bounding boxes against the coordinates given for the ground truth rectangles.

Accordi

Answer 1

how about this approach? Could be extended to any number of unioned shapes

surface = np.zeros([1024,1024])
surface[1:1+10, 1:1+10] += 1
surface[100:100+500, 100:100+100] += 1
unionArea = (surface==2).sum()
print(unionArea)