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Road sign recognition

  • US 10,528,055 B2
  • Filed: 11/03/2016
  • Issued: 01/07/2020
  • Est. Priority Date: 11/03/2016
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • determining a road sign location in LIDAR data;

    identifying a road sign in one or more video images based on the road sign location determined from the LIDAR data, wherein the video images are from a video camera and the LIDAR data are from a LIDAR sensor, wherein identifying the road sign in the video images based on the road sign location includes isolating video images of the road sign from the video images based on the road sign location, and the isolated video images are projected homographically so as to appear as if the video camera acquired the video images of the road sign location at a right angles to the primary face of the road signs; and

    including the road sign in a digital map based on the road sign identity and the road sign location.

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