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NAVIGATION IN BUILDINGS WITH RECTANGULAR FLOOR PLAN

  • US 20140320641A1
  • Filed: 07/08/2014
  • Published: 10/30/2014
  • Est. Priority Date: 06/30/2011
  • Status: Abandoned Application
First Claim
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1. A method in a mobile device of navigation using wall matching with a horizontal feature to estimate motion, the method comprising:

  • capturing, with a camera in the mobile device, a local image containing the horizontal feature;

    processing the local image to determine a horizontal feature angle (θ

    HF), wherein the horizontal feature angle (θ

    HF) is an angle from a current orientation of the mobile device to the horizontal feature; and

    estimating a direction of motion of the mobile device, based on the horizontal feature angle (θ

    HF), as parallel to a wall angle of the horizontal feature.

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