nuscenes-devkit
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where is point's intensity
Hello Lyft team, Thanks for releasing this wonderful dataset. I found the point intensities of the lidar files are all set to 100. May I know is there a way that I could find back the intensities?
Thanks.
Related to the above question, I think points' channel info also missing. The codes below show the issue:
file_path = '../lyft/train/lidar/host-a009_lidar1_1236020739601140606.bin'
lyft_points = load_pcl(file_path)
file_path = '../nuscenes/trainval/samples/LIDAR_TOP/n015-2018-08-01-16-32-59+0800__LIDAR_TOP__1533112832196540.pcd.bin'
nuscenes_points = load_pcl(file_path)
print('lyft'); print(lyft_points)
print('nuscenes'); print(nuscenes_points)
## Results
lyft
[[ 58.14607 0.21440078 7.303754 100. 1. ]
[ 59.453796 0.4321603 7.4708657 100. 1. ]
[ 62.629566 0.66805637 7.876157 100. 1. ]
...
[ 5.897753 -0.04891394 -1.6242886 100. 1. ]
[ 5.897241 -0.02844508 -1.6243095 100. 1. ]
[ 5.8966975 -0.00694822 -1.6243294 100. 1. ]]
nuscenes
[[-2.9440382 -0.3490765 -1.7511001 15. 0. ]
[-3.0973759 -0.34716725 -1.7453089 18. 1. ]
[-3.2428663 -0.34577352 -1.729147 21. 2. ]
...
[-6.527841 -0.00455226 0.9174293 38. 29. ]
[-6.5363693 -0.0022812 1.0738865 48. 30. ]
[-6.6156087 -0.00000249 1.2464437 30. 31. ]]
The 4th and 5th column should be intensity and channel, respectively. Lyft points have consistently 100 and 1. Lyft dataset doesn't provide?