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PRBonn / lidar-bonnetal

Semantic and Instance Segmentation of LiDAR point clouds for autonomous driving
http://semantic-kitti.org
MIT License
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the mean of range #17

Closed sherrygp closed 5 years ago

sherrygp commented 5 years ago

hello What do range, signal mean respectively ?

tano297 commented 5 years ago

Hi.

Range is the euclidean distance from each point to the origin of the sensor reference frame. This means sqrt(x^2+y^2+z^2). Signal refers to the remission, which is a measure of the "intensity" of the reflected lidar beams. Its actual meaning varies from sensor to sensor (different technologies).

You don't need to open a new issue every time. You can keep commenting on the other issue you opened and I closed.

sherrygp commented 5 years ago

thanks

iris0329 commented 4 years ago

Hi, @tano297 , thanks for open sourcing your work! Your mean-values: (12.12, 10.88, 0.23, -1.04, 0.21)

But I get x-value around 0. (sequence 00-10 except 08) I also wonder why X-coordinate is around 10?

Thanks!