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Vehicle travel distance calculation method, vehicle travel distance calculation apparatus, vehicle current position detection method and vehicle current postition detection apparatus

  • US 20070088478A1
  • Filed: 10/18/2006
  • Published: 04/19/2007
  • Est. Priority Date: 10/19/2005
  • Status: Abandoned Application
First Claim
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1. A vehicle moving distance detecting method, comprising:

  • obtaining a moving distance based upon pulse signals received from a vehicle speed sensor when a vehicle speed obtained based upon the pulse signals received from the vehicle speed sensor is equal to or higher than a predetermined reference vehicle speed; and

    acquiring a plurality of image data sets, which have been captured at different points in time using an image capturing mechanism provided to the vehicle, and obtaining the moving distance by performing image processing for the plurality of image data sets when the vehicle speed is less than the reference vehicle speed.

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