×

Method for recognizing traffic signs

  • US 9,436,879 B2
  • Filed: 07/10/2012
  • Issued: 09/06/2016
  • Est. Priority Date: 08/04/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method of traffic sign recognition in a driver assistance system of a motor vehicle, said method comprising the step:

  • a) using a camera, recording image data of at least one image of a vehicle environment outside of the motor vehicle driving along a road;

    and further comprising the following steps in an automatic machine interpretation process performed by said driver assistance system;

    b) from the image data, recognizing the presence and class of at least one main sign present in the vehicle environment;

    c) from the image data, recognizing the presence of at least one additional sign assigned to the main sign;

    d) classifying the additional sign using a pattern recognition method to an extent possible;

    e) reading and interpreting and thereby recognizing text of the additional sign using a text recognition method; and

    f) in a relevance assessment unit of the driver assistance system, automatically assessing a relevance of the main sign in an automatic machine-based relevance assessment, in which the recognized text of the additional sign is compared to situational information regarding the motor vehicle, a current operation of the motor vehicle, or a condition of the vehicle environment.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×