2013-147 – Polaris: Getting Accurate Indoor Orientations for Mobile Devices Using Ubiquitous Visual Patterns on Ceilings

This invention describes a method for reliable determination of location and orientation of mobile computing devices in indoor environments. The invention achieves this by aggregating pictures of the ceiling of an indoor environment and applies computer vision based pattern matching techniques to utilize the features in the pictures as orientation references for correcting digital compass reading. Reed McManigle reedm@andrew.cmu.edu 412-268-5443

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