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Ground-Plane-Based Absolute Scale Estimation for Monocular Visual Odometry
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DOI：10.1109/TITS.2019.2900330.png)
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Abstract
En 中文
Recovering an absolute metric scale from a monocular camera is a challenging but highly desirable problem for monocular camera-based systems. By using different kinds of cues, various approaches have been proposed for scale estimation, such as camera height and object size. In this paper, first, we summarize different kinds of scale estimation approaches. Then, we propose a robust divide-and-conquer absolute scale estimation method based on the ground plane and camera height by analyzing the advantages and disadvantages of different approaches. By using the estimated scale, an effective scale correction strategy has been proposed to reduce the scale drift during the monocular visual odometry estimation process. Finally, the effectiveness and robustness of the proposed method have been verified on both public and self-collected image sequences.
Keywords:
Cameras
Estimation
Simultaneous localization and mapping
Three-dimensional displays
Sensor systems
Laser radar
Absolute scale estimation
ground plane
scale correction
monocular VO and SLAM
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