Method and device for classifying a behavior of a pedestrian when crossing a roadway of a vehicle as well as passenger protection system of a vehicle

• US 20150206001A1
• Filed: 01/23/2015
• Published: 07/23/2015
• Est. Priority Date: 01/23/2014
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: GUSSNER, Thomas, BUERKLE, Lutz, MAURER, Thomas
• Granted Patent: US 9,734,390 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 18/24 Classification techniques
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/30241 Trajectory
• CPC Class Codes: G06T 2207/30261 Obstacle
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G06V 40/23 Recognition of whole body movements, e.g. for sport training

Abstract

A method for classifying a behavior, of a pedestrian when crossing a roadway of a vehicle, includes reading in a sensor signal to detect the pedestrian and at least one piece of surroundings information regarding surroundings of the pedestrian. The sensor signal represents here a signal of at least one sensor of the vehicle. The method further includes ascertaining at least one physical variable of a correlation between the pedestrian and the at least one piece of surroundings information. Finally, the method includes classifying the behavior of the pedestrian using the at least one physical variable.

Claims

1. A method for classifying a behavior of a pedestrian when crossing a roadway of a vehicle, the method comprising:

reading in a sensor signal to detect the pedestrian and at least one piece of surroundings information regarding surroundings of the pedestrian, the sensor signal representing a signal of at least one sensor of the vehicle;

ascertaining at least one physical variable of a relationship between the pedestrian and the at least one piece of surroundings information; and

classifying the behavior of the pedestrian using the at least one physical variable.

2. The method of claim 1, further comprising:

determining at least one possible trajectory of the pedestrian as a function of the behavior of the pedestrian classified in the classifying.

3. The method of claim 2, further comprising:

providing an activation signal to activate a passenger protection system of the vehicle as a function of the possible trajectory.

4. The method of claim 1, wherein, in the reading in, a surroundings model of the surroundings of the pedestrian is created using the sensor signal, to detect the pedestrian and the surroundings information.

5. The method of claim 1, wherein in the reading in at least one possible stop line of the pedestrian is detected as surroundings information, in the ascertaining a velocity of a relative movement between the pedestrian and the possible stop line being ascertained as a physical variable and the behavior of the pedestrian being classified using the velocity of the relative movement in the classifying.

6. The method of claim 1, wherein in the reading in at least one pedestrian crossing the roadway is detected as surroundings information, in the ascertaining a distance between the pedestrian and the pedestrian crossing the roadway being ascertained as a physical variable and the behavior of the pedestrian being classified using the distance in the classifying.

7. The method of claim 1, wherein in the reading in at least one possible crossing point of the pedestrian is detected as surroundings information, in the ascertaining a distance between the pedestrian and the possible crossing point being ascertained as a physical variable and the behavior of the pedestrian being classified using the distance in the classifying.

8. The method of claim 1, wherein in the reading in, a possible line of sight between the vehicle and the pedestrian is detected as surroundings information, a time span of the possible line of sight being ascertained as a physical variable in the ascertaining and the behavior of the pedestrian being classified using the time span in the classifying.

9. The method of claim 1, wherein in the reading in a body size and/or a viewing direction of the pedestrian is further detected, the behavior of the pedestrian being further classified in the classifying as a function of the body size and/or the viewing direction.

10. A device for classifying a behavior of a pedestrian when crossing a roadway of a vehicle, comprising:

a reading arrangement to read in a sensor signal to detect the pedestrian and at least one piece of surroundings information regarding surroundings of the pedestrian, the sensor signal representing a signal of at least one sensor of the vehicle;

an ascertaining arrangement to ascertain at least one physical variable of a relationship between the pedestrian and the at least one piece of surroundings information; and

a classifying arrangement to classify the behavior of the pedestrian using the at least one physical variable.

11. A computer readable medium having a computer program, which is executable by a processor, comprising:

a program code arrangement having program code for classifying a behavior of a pedestrian when crossing a roadway of a vehicle, by performing the following;

reading in a sensor signal to detect the pedestrian and at least one piece of surroundings information regarding surroundings of the pedestrian, the sensor signal representing a signal of at least one sensor of the vehicle;

ascertaining at least one physical variable of a relationship between the pedestrian and the at least one piece of surroundings information; and

classifying the behavior of the pedestrian using the at least one physical variable.

12. The computer readable medium of claim 11, further comprising:

determining at least one possible trajectory of the pedestrian as a function of the behavior of the pedestrian classified in the classifying.

13. A passenger protection system of a vehicle, comprising:

at least one sensor for detecting a pedestrian and one piece of surroundings information regarding surroundings of the pedestrian;

a device for classifying a behavior of a pedestrian when crossing a roadway of a vehicle, including;

a reading arrangement to read in a sensor signal to detect the pedestrian and at least one piece of surroundings information regarding surroundings of the pedestrian, the sensor signal representing a signal of at least one sensor of the vehicle;

an ascertaining arrangement to ascertain at least one physical variable of a relationship between the pedestrian and the at least one piece of surroundings information; and

a classifying arrangement to classify the behavior of the pedestrian using the at least one physical variable; and

a passenger protection device which is activatable by the device.