Indoor positioning system and indoor positioning method

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United States of America Patent

PATENT NO 11631195
APP PUB NO 20220301222A1
SERIAL NO

17378778

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An indoor positioning system and method are provided. The indoor positioning method includes: establishing an image database through a BIM model of a target area, and using a trained deep learning model to extract features of a virtual image; after obtaining a captured image in the target area, using the trained deep learning model to extract features thereof, and performing similarity matching with the image database to calculate a spatial position of a most similar image; calculating the most similar image and its essential matrix through multiple sets of feature points, and obtaining capturing positions and capturing pose parameters as positioning results; projecting the BIM model to a tracking captured image, and updating the positioning results and the capturing pose parameters with a visual inertial odometer; and continuously correcting the positioning results and the capturing pose parameters by detecting horizontal and vertical planes from the tracking captured image.

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Patent Owner(s)

  • NATIONAL TAIWAN UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hsieh, Shang-Hsien Taipei, TW 6 12
Huang, Bo-Kai Taichung, TW 5 2
Kuo, Wei-Liang Taipei, TW 2 0

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