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enter image description hereI recorded GPS and ARCore for outdoor positioning. However in several cases when I plot the trajectories from both GPS and ARCore, they do not align and there is a angle of rotation of about 120 degrees to 60 degrees in some cases, and some are perfectly matched.

Now the question is as there isn't a universal phase difference, how can we match these two trajectories? I believe ARCore renders the heading quite random without any underlying rule and due to the noisy sensors, like compass. I added a picture for a sample outdoor trajectory.

Kevin
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  • Graphing like that is a great idea - interesting how closely the shapes match. Can you share he code you use to plot the AR position and it may help others answer you. – Mick Jun 17 '21 at 15:38
  • It is just a simple plotting of x, y coordinates from GPS and ARCore. – Kevin Jun 17 '21 at 15:53
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    ARCore is a localized refinement of your position. GPS points are not that locally refined. You should use ARCore's camera pose between two GPS points if you wish to integrate the two. –  Jul 19 '21 at 12:02
  • Thanks for your comment. There are two issues with this approach: 1- GPS has error and the drift from ARCore is lower. I need the accuracy in the scale of ARCore. 2- For indoor the GPS is not available. – Kevin Jul 20 '21 at 13:29

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