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Questions about the coordinate axis #121

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@aiming1998

@mmattar @xpchuan-95 @malcolmgreaves @rickyrauch @brwillia @nisseknudsen
Hi~
I read the paper
[https://arxiv.org/pdf/2112.12610.pdf ]
I think it is a mistake about Fig 1.(a) Sensor placement
In this figure, the car faces to the right, but the positive direction of the Y-axis of the lidar faces back
Where is the origin of the world coordinate axis you mentioned? Where is it located on the vehicle?
The point cloud in frame 0 takes this coordinate axis as the origin, but the values of Y-axis and x-axis of lidar are positive, which is impossible for panderGT
I think the x-axis direction of solid-state lidar should be both positive and negative
Can you give the correct definition of the coordinate system?
I think the point clouds of these two lidars are calibrated to a unified coordinate system. Where is the origin of this coordinate system?
Thanks~

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