Driver assistance system for traffic sign recognition

An evaluation device for a driver assistance system for a vehicle, comprising:

• an input for receiving image information recorded by a camera;
• a first component for locating an image segment containing a predetermined shape in first image information received from the camera;
• a second component configured to send to the camera an instruction to record the image segment with a higher contrast relative to the first image information and to request second image information, wherein the second image information corresponds to a new recording of the image segment located by said first component with better contrast than the first image information;
• a third component configured to receive the second image information and to identify a traffic sign in the second image information;
• and
• an output for outputting a signal relating to the traffic sign identified by the third component.

A computer program product for a vehicle assistance system for a vehicle, comprising computer-readable instructions stored in memory and being executable to:

• locate an image segment containing a predetermined shape in first image information received from a camera;
• send an instruction to the camera to re-record the image segment with a higher contrast than the images in the first image information and to request second image information, the second image information corresponding to a new recording of a located image segment with better contrast than the first image information;
• identify a traffic sign in the second image information;
• and
• output a signal relating to a traffic sign thus identified.

A method for operating a driver assistance system for a vehicle, the method which comprises:

• locating an image segment containing a predetermined shape in first image information;
• sending instructions to the camera to record the image regions with a higher contrast than the images and requesting second image information, the second image information corresponding to a new recording of a located image segment with better contrast than the first image information;
• identifying a traffic sign in the second image information;
• and
• outputting a signal relating to an identified traffic sign.