Situation analysis for a driver assistance system

A method for situation analysis for a driver assistance system on board a motor vehicle, comprising:

• providing a representation of surroundings of the motor vehicle, the representation including a system of cells that are reversibly unambiguously associated with predetermined sections of the surroundings;
• scanning the surroundings of a motor vehicle with the aid of at least one sensor in order to detect an obstacle;
• marking cells, based on the scan, in such a way that
• a cell that is associated with an obstacle-free section of the surroundings carries a first marker, and
• a cell that is associated with a section of the surroundings in which an obstacle has been detected carries a second marker;
• and
• using a morphological filter on the representation to provide cells, which are not accessible by the motor vehicle, with the second marker.

A computer program product which includes program code stored on a computer-readable storage medium, the program code for situation analysis for a driver assistance system on board a motor vehicle, the program code, when executed on a processing device, causing the following steps to be executed:

• providing a representation of surroundings of the motor vehicle, the representation including a system of cells that are reversibly unambiguously associated with predetermined sections of the surroundings;
• scanning the surroundings of a motor vehicle with the aid of at least one sensor in order to detect an obstacle;
• marking cells, based on the scan, in such a way that
• a cell that is associated with an obstacle-free section of the surroundings carries a first marker, and
• a cell that is associated with a section of the surroundings in which an obstacle has been detected carries a second marker;
• and
• using a morphological filter on the representation to provide cells, which are not accessible by the motor vehicle, with the second marker.

A device for situation analysis for a driver assistance system on board a motor vehicle, comprising:

• a memory that stores a representation of surroundings of the motor vehicle, the representation including a system of cells that are reversibly unambiguously associated with predetermined sections of the surroundings;
• an interface for a sensor for scanning the surroundings of the motor vehicle in order to detect an obstacle;
• and
• a processing device for marking cells, based on the scan, in such a way that:
• a cell that is associated with an obstacle-free section of the surroundings carries a first marker, and
• a cell that is associated with a section of the surroundings in which an obstacle has been detected carries a second marker;
• wherein the processing device is configured for using a morphological filter on the representation to provide cells, which are not accessible by the motor vehicle, with the second marker.