Method of analyzing sequences of road images, device for implementing it and its application to detecting obstacles

  • US 5,706,355 A
  • Filed: 09/19/1996
  • Issued: 01/06/1998
  • Est. Priority Date: 03/22/1991
  • Status: Expired due to Term
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A method of analyzing sequences of image video signals, taken by a camera on board a vehicle, for extracting a contour of a road from the image video signals, comprising the steps of:

  • analyzing luminance information of the image video signals to extract contours and regions from the image video signals to generate a mask signal of the road;

    analyzing color information of the image video signals comprising the substeps of;

    determining average blue, red and green components for points in the image video signals;

    comparing the average blue components with the average red and green components for the points in the image video signals; and

    determining points at which a deviation between the average blue components and the average red or green components in the image video signals exceeds a first predetermined threshold; and

    combining the mask signal of the road from the analyzed luminance information with the determined points from the analyzed color information to extract the contour of the road.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×