ELI5: Explain Like I'm 5

Rigid motion segmentation

Imagine you are playing with some blocks that can move around. You can slide them or rotate them but you cannot stretch or squish them. Now imagine you have a camera watching you and your blocks. As you move and rotate your blocks, the camera takes pictures of them.

Rigid motion segmentation is like separating the blocks that move together from the ones that move separately. For example, if you move two blocks at the same time, they belong to the same group. But if you move one block while the other stays still, they belong to different groups.

This is important because when we want to analyze the movement of objects, we need to know which ones move together and which ones move separately. This can help us understand how things work, like how the parts of a machine move and interact with each other.

So, in short, rigid motion segmentation is about figuring out which objects move together and which ones move separately, using pictures taken with a camera.