Method for combining a road sign recognition system and a lane detection system of a motor vehicle

A method for combining a road sign recognition system and a lane detection system of a motor vehicle driving along a road, wherein the road sign recognition system generates road sign information from sensor data of a camera-based or video-based sensor system and the lane detection system generates lane course information from said sensor data, characterized in that

• meaning-indicating data for road signs are generated from the lane course information,
• the meaning-indicating data for road signs are used to check the plausibility of and/or to interpret the road sign information,
• data indicating the course of the lane are generated from the road sign information,
• the data indicating the course of the lane are used to check the plausibility of and/or to interpret the lane course information,
• the meaning-indicating data for road signs comprises information indicating an exit ramp or an exit ramp region that is generated from the lane course information of the lane detection system,
• the plausibility of the road sign information regarding particular road signs that indicate a speed limit and/or a restriction on passing and that are recognized by the road sign recognition system is checked using the information indicating the exit ramp or the exit ramp region, and
• further comprising a first additional feature or a second additional feature, wherein:
• according to the first additional feature, a fact that the motor vehicle is remaining on the road and driving past the exit ramp is detected from the current lane detected by the lane detection system and/or from a lane change of the motor vehicle detected by the lane detection system and from the information indicating the exit ramp or the exit ramp region, and the road sign recognition system rejects data of the road sign information regarding the particular road signs that indicate the speed limit and/or the restriction on passing and that concern the exit ramp, or
• according to the second additional feature, a fact that the motor vehicle is exiting the road onto the exit ramp is detected from the current lane detected by the lane detection system and/or from a lane change of the motor vehicle detected by the lane detection system and from the information indicating the exit ramp or the exit ramp region, and data of the road sign information regarding the particular road signs that indicate the speed limit and/or the restriction on passing and that concern the exit ramp are outputted to a Human Machine Interface of the motor vehicle.

A method for combining a road sign recognition system and a lane detection system of a motor vehicle driving along a road, wherein the road sign recognition system generates road sign information from sensor data of a camera-based or video-based sensor system and the lane detection system generates lane course information from said sensor data, characterized in that

• meaning-indicating data for road signs are generated from the lane course information,
• the meaning-indicating data for road signs are used to check the plausibility of and/or to interpret the road sign information,
• data indicating the course of the lane are generated from the road sign information,
• the data indicating the course of the lane are used to check the plausibility of and/or to interpret the lane course information,
• the meaning-indicating data for road signs comprises information indicating an exit ramp or an exit ramp region that is generated from the lane course information of the lane detection system and that concerns a current lane of the road on which the motor vehicle is driving, and
• further comprising a first additional feature or a second additional feature, wherein:
• according to the first additional feature, data of the road sign information regarding particular road signs that indicate a speed limit and/or a restriction on passing are interpreted as being canceled using the information indicating the exit ramp or the exit ramp region, or
• according to the second additional feature, the plausibility of the road sign information regarding particular road signs that indicate “driving on the right” or “driving on the left” is checked based on a frequency of a detection of exit ramps or exit ramp regions.

A method for combining a road sign recognition system and a lane detection system of a motor vehicle driving along a road, wherein the road sign recognition system generates road sign information from sensor data of a camera-based or video-based sensor system and the lane detection system generates lane course information from said sensor data, characterized in that

• meaning-indicating data for road signs are generated from the lane course information,
• the meaning-indicating data for road signs are used to check the plausibility of and/or to interpret the road sign information,
• data indicating the course of the lane are generated from the road sign information,
• the data indicating the course of the lane are used to check the plausibility of and/or to interpret the lane course information,
• the data indicating the course of the lane comprises information that indicates road signs indicating a speed limit and/or a road type of the road, and that is generated from the road sign information, and
• filter dynamics of a filter of the lane detection system are adjusted to generate a lane course scenario, wherein the adjustment is performed using the information that indicates road signs indicating the speed limit and/or the road type.