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Method and system for detecting road area

  • US 6,549,642 B1
  • Filed: 04/30/1999
  • Issued: 04/15/2003
  • Est. Priority Date: 05/01/1998
  • Status: Expired due to Fees
First Claim
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1. In a system for recognizing the environment around a vehicle with an image, a system for detecting a road area wherein said system comprisesmeans for calculating a statistic for each horizontal line of a road image which is input from an image input device, means for fitting said statistic to a function related to a vertical coordinate of the road image, threshold value-processing means for processing a threshold value of said road image by using said function, means for detecting the road area from the road image which has been subjected to threshold value-processing by said threshold value-processing means, and wherein said function fitting means uses an inverse proportional function relating to the vertical coordinate of the road image as said function.

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