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Method, tool, and device for determining the coordinates of points on a surface by means of an accelerometer and a camera

  • US 20120026322A1
  • Filed: 08/01/2010
  • Published: 02/02/2012
  • Est. Priority Date: 08/01/2010
  • Status: Active Grant
First Claim
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1. A method for determining the coordinates of a plurality of points Pi on a substantially plane surface S by means of a device comprising an accelerometer, a camera, and a processor, the method comprising, for each point Pi:

  • determining a perpendicular projection Ci of the location of the camera onto S;

    identifying the point Pi by means of the device;

    measuring an inclination Ii (the angle between the line of sight of the camera and gravity) by means of the accelerometer;

    determining an azimuth Ai (the angle of the line of sight of the camera around gravity);

    computing the coordinates of the point Pi using Ai, Ii, and Ci by means of the processor.

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