Detect non rectangular bounding box for objects

1. How are bounding boxes predicted?
2. What is bounding box in object detection?

How are bounding boxes predicted?

Bounding box prediction: For every bounding box, logistic regression is used to determine the “objectness score.” In case of overlap between the preceding bounding box and a ground truth object, we get an objectness score of “1.” Only one bounding box gets assigned for each of the ground truth objects.

What is bounding box in object detection?

The bounding box is an imaginary rectangular box that contains an object or a set of points. When used in digital image processing, the bounding box refers to the border's coordinates that enclose an image.