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Visual-lidar+odometry+and+mapping_+low-drift,+robust,+and+fast.pdf
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上传时间: 2019-10-22
详细说明： Abstract— In this paper, we develop a low-cost stereo visualinertial localization system, which leverages efficient multistate constraint Kalman filter (MSCKF)-based visual-inertial odometry (VIO) while utilizing an a priori LiDAR map to provide bounded-error 3D navigation. Besides the standard sparse visual feature measurements use d in VIO, the global registrations of visual semi-dense clouds to the prior LiDAR map are also exploited in a tightly-coupled MSCKF update, thus correcting accumulated drift. This cross-modality constraint between visual and LiDAR pointclouds is particularly addressed. The proposed approach is validated on both Monte Carlo simulations and real-world experiments, showing that LiDAR map constraints between clouds created through different sensing modalities greatly improve the standard VIO and provide bounded-error performance.
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