How can I separate the intersection between two predictions ?

[RGuven]

I have trained a custom MaskRCNN instance segmentation model.
However, I am encountering intersections between predictions, as evident in the provided example. While the boundaries of the predicted objects may be close, there should be no overlap.

How can I avoid these intersections ?

Extra:
So, I expect an output like the example below, where nothing is included in each other. ( Architecture is different but output should be something like below )