Title
CoMask: Corresponding Mask-Based End-to-End Extrinsic Calibration of the Camera and LiDAR.
Abstract
The integration of the camera and LiDAR has played an important role in the field of autonomous driving, for example in visual-LiDAR SLAM and 3D environment fusion perception, which rely on precise geometrical extrinsic calibration. In this paper, we proposed a fully automatic end-to-end method based on the 3D-2D corresponding mask (CoMask) to directly estimate the extrinsic parameters with high precision. Simple subtraction was applied to extract the candidate point cluster from the complex background, and then 3D LiDAR points located on checkerboard were selected and refined by spatial growth clustering. Once the distance transform of 2D checkerboard mask was generated, the extrinsic calibration of the two sensors could be converted to 3D-2D mask correspondence alignment. A simple but efficient strategy combining the genetic algorithm with the Levenberg-Marquardt method was used to solve the optimization problem globally without any initial estimates. Both simulated and realistic experiments showed that the proposed method could obtain accurate results without manual intervention, special environment setups, or prior initial parameters. Compared with the state of the art, our method has obvious advantages in accuracy, robustness, and noise resistance. Our code is open-source on GitHub.
Year
DOI
Venue
2020
10.3390/rs12121925
REMOTE SENSING
Keywords
DocType
Volume
camera and LiDAR fusion,corresponding mask,automatic extraction,extrinsic calibration
Journal
12
Issue
Citations 
PageRank 
12
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Lu Yin1103.59
Bin Luo27914.05
Wei Wang3346.08
Huan Yu44613.63
Wang Chenjie541.75
Chengyuan Li691.96