SJTU-ViSYS / M2DGR

M2DGR: a Multi-modal and Multi-scenario Dataset for Ground Robots(RA-L2021 & ICRA2022)
MIT License
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LVI-SAM中的激光-IMU平移外参是不是给反了? #86

Closed 504115681 closed 11 months ago

504115681 commented 11 months ago

LVI-SAM的params_lidar.yaml文件中,extrinsicRot和extrinsicTrans表示将IMU坐标系转换到激光坐标系的旋转和平移外参,以激光雷达为参考坐标系。从下图中可以看出,如果以激光雷达(3)为参考坐标系,IMU(5)原点位置应该是:[负数,接近0,负数],而提供的平移外参为:[0.27255, -0.00053,0.17954],是不是应该改为:[-0.27255, 0.00053,-0.17954]? image