Described is a lawn mower robot comprising at least one optical sensor, a legible storage support and a control unit.The optical sensor is configured to continuously acquire a sequence of operating images of a surface in front of the lawn mower robot along a relative feed direction.The legible storage support is configured for storing a plurality of reference images showing turf to be cut.The control unit is configured for comparing each operating image with the plurality of reference images generating a respective comparison percentage value representing the probability that the operating image shows a turf to be cut.The control unit is also configured for modifying at least one operating parameter of the lawn mower robot if the comparison percentage value is less than a predetermined percentage value and greater than a percentage control value, to prevent the robot from continuing cutting along the feed direction.
