an image so the random sub like taking a random crop from the image tends to be very very beneficial because so here this is the same image twice right let's say we take a random crop here and one up here it's sort of maybe there's an overlap here in the middle right so it sort of needs to understand that these random crops sir sort of needs to communicate between these two places in these random crops so the representation has to somehow make sure that the object that is overlapping here is somehow represented but it can't represent it