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Method and system for assisting driver

  • US 8,320,628 B2
  • Filed: 06/24/2010
  • Issued: 11/27/2012
  • Est. Priority Date: 11/02/2009
  • Status: Active Grant
First Claim
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1. A driving assistance method, comprising the steps of:

  • obtaining a surrounding image relating to the surrounding environment of a carrier while the carrier is moving;

    performing an image-based motion vector estimation based upon the variation of the surrounding image so as to determine a moving status of the carrier while the carrier is moving backward;

    constructing an assistant trajectory according to the moving status;

    making an evaluation to determine whether there is a feature object found in the varying surrounding image during the backward movement of the carrier; and

    if so, determining the distance between the carrier and the feature object;

    performing a first assistance process according to the distance between the moving carrier and the feature object; and

    performing a viewpoint switching operation while the distance is smaller than a first distance, wherein the viewpoint switching operation is performed for converting a coordinate (x,y,0) is real world into another coordinate (α



    ) in the image space by the following formula;

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