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How to generate point clouds like the one in the paper

Open rsj007 opened this issue 3 years ago • 4 comments

I have generated point clouds using "generate_lidar_from_depth.py" with depth maps. I visulized the point clouds by mayavi, however very different from the one in the paper. The point clouds I generated has red distorations (inside the red circle)and some long tails. Anyone knows how to get the point clouds properly? 1145df43e212b73cf0f561e27fc23bf

image

rsj007 avatar Jan 05 '22 08:01 rsj007

This part may be caused by a wrong depth estimate in the sky. You can try to set the maximum height to 0.2m in generate_lidar_from_depth.py.

Baboom-l avatar Jan 05 '22 13:01 Baboom-l

Thanks! Is it 0.2m too small for visualize cars? And, which visualization tools do you use? Can you get ideal point clouds output?

rsj007 avatar Jan 05 '22 13:01 rsj007

For the sedan, it does not affect the visualization results. However, it may have an effect for trucks or off-road vehicles in close proximity.These suggestions are only for the visualization of the point cloud and I am not sure if they will affect the results of the subsequent 3D object detection.

Baboom-l avatar Jan 05 '22 13:01 Baboom-l

I use the visualization in OpenPCDet

Baboom-l avatar Jan 05 '22 13:01 Baboom-l