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HKUST-Aerial-Robotics / VINS-Mono

A Robust and Versatile Monocular Visual-Inertial State Estimator
GNU General Public License v3.0
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2D Feature questions #361

Open ArtlyStyles opened 3 years ago

ArtlyStyles commented 3 years ago

In the paper, section IV A, it said "2D Features are firstly undistorted and then projected to a unit sphere", what does this mean?