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SVO: Fast Semi-Direct Monocular Visual Odometry

Publication date:

Authors:

  • Presented at: 2014 IEEE International Conference on Robotics and Automation (ICRA 2014), Hong Kong, China, May 31 – June 7, 2014
  • Publication date: 2014

We propose a semi-direct monocular visual odometry algorithm that is precise, robust, and faster than current state-of-the-art methods. The semi-direct approach eliminates the need of costly feature extraction and robust matching techniques for motion estimation. Our algorithm operates directly on pixel intensities, which results in subpixel precision at high frame-rates. A probabilistic mapping method that explicitly models outlier measurements is used to estimate 3D points, which results in fewer outliers and more reliable points. Precise and high frame-rate motion estimation brings increased robustness in scenes of little, repetitive, and high-frequency texture. The algorithm is applied to micro-aerial-vehicle state-estimation in GPS-denied environments and runs at 55 frames per second on the onboard embedded computer and at more than 300 frames per second on a consumer laptop. We call our approach SVO (Semi-direct Visual Odometry) and release our implementation as open-source software.

    Reference

    • Detailed record: https://infoscience.epfl.ch/record/199740?ln=en
    • EPFL-CONF-199740
    Reference
    Read the paper
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