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Method and system for image processing for automatic road sign recognition

  • US 7,068,844 B1
  • Filed: 11/15/2001
  • Issued: 06/27/2006
  • Est. Priority Date: 11/15/2001
  • Status: Active Grant
First Claim
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1. A method of processing an image wherein said image is viewed from a host, comprising:

  • (a) initiating a scan of an object within a field so as to obtain an input,(b) converting said input to a signal representative of said input;

    (c) comparing said input with each one of a set of stored inputs to determine a match; and

    (i) if a match is determined, then causing an action to be performed in accordance with a set of instructions associated with said stored input; and

    (ii) if a match is not determined then continuing to scan said field for a second or subsequent image to be subjected to said comparing; and

    wherein said converting further comprises;

    (a) converting said input via a fourier transform of said input to produce a transformed input; and

    (b) filtering said transformed input using nonlinear filtering.

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