Pattern recognition in Robot Vacuum Map

Hello,

I am currently working on the recognition of fallen persons from a generated map of a vacuum cleaner robot (2D lidar sensor). This should be kept as simple as possible in the first step.

In the appendix are the pictures of an empty room as well as of a room with a person on the floor. I would be happy if someone could guide me in one direction how I could do this detection with Matlab.

Thank you very much and best regards

Michael