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System and method for automated road identification in distant traffic camera images

  • US 9,881,230 B2
  • Filed: 05/11/2016
  • Issued: 01/30/2018
  • Est. Priority Date: 05/11/2016
  • Status: Active Grant
First Claim
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1. A method for identifying features in an image, the method comprising:

  • determining a plurality of scaling ratios from average vehicle sizes in an image from a fixed-point traffic camera, wherein the scaling ratios are identified at two or more points in the image corresponding to different positions along a single roadway;

    determining an ortho mapping function from the plurality of scaling ratios;

    producing, using the ortho mapping function, an ortho projection of a road part extracted from the image;

    identifying an identification label of a road part in a map corresponding to the road part in the ortho projection; and

    producing a road-labeled image from the image and the identification label.

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