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How to generate point clouds like the one in the paper #28

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rsj007 opened this issue Jan 5, 2022 · 4 comments
Open

How to generate point clouds like the one in the paper #28

rsj007 opened this issue Jan 5, 2022 · 4 comments

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@rsj007
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rsj007 commented Jan 5, 2022

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

@Baboom-l
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Baboom-l commented Jan 5, 2022

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.

@rsj007
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rsj007 commented Jan 5, 2022

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

@Baboom-l
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Baboom-l commented Jan 5, 2022

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
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Baboom-l commented Jan 5, 2022

I use the visualization in OpenPCDet

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