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Method and system for indoor positioning and device for creating indoor maps thereof

  • US 10,169,914 B2
  • Filed: 02/20/2017
  • Issued: 01/01/2019
  • Est. Priority Date: 08/26/2016
  • Status: Active Grant
First Claim
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1. An indoor positioning method, configured to position a portable electronic device, the indoor positioning method comprising:

  • converting a panorama image corresponding to an indoor environment into a plurality of perspective images, and extracting a plurality of reference feature points in the perspective images and descriptors of the reference feature points;

    taking a shooting position of the panorama image as an origin and recording a plurality of three-dimensional reference coordinate values corresponding to a central position of each of the perspective images;

    calculating three-dimensional coordinate values of the reference feature points base on the three-dimensional reference coordinate values, and storing the three-dimensional coordinate values of the reference feature points and the descriptors of the reference feature points as an indoor map corresponding to the indoor environment; and

    determining a three-dimensional target coordinate value of the portable electronic device with respect to the origin of the indoor map in the indoor environment.

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