Merge two RS-16 Lidars to create 3D Map

asked 2021-07-01 00:45:35 -0500

ManChrys
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Hello guys,

i would like to ask if there is a way to set and compile two rs-16 lidars, one horizontal and the other on 45 degrees. How can i merge the two different point clouds?

Any help will be appreciated!! Thanks in advance :D

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answered 2021-07-06 08:09:18 -0500

Fetullah Atas

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Google cartographer will suite your description. They have specific use-case where they mount 2 LIDAR back to back, optionally supported by an IMU. Google cartographer documention

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thank you for the suggestion my friend. It seems kind hard to understand exactly how to use it, as im new to ROS, but ill try it.

ManChrys ( 2021-07-11 10:59:14 -0500 )edit

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answered 2021-07-01 16:15:08 -0500

Mike Scheutzow
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You need to know the 3d transform from Lidar2 to Lidar1. Use that to transform each point in PointCloud2 into the frame used by PointCloud1. Append these new points to PointCloud1. If the robot is in motion, this simple algorithm assumes both PointClouds were captured at nearly the same time.

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Hello and thanks for the answer.

Hmm i see!!!

Im not using robot, but i think the logic is the same. I have 2 identical rs16 3D Lidars(one horizontal and one on 45 degrees) which i put them on a custom backpack and just mapping.

ManChrys ( 2021-07-02 01:07:08 -0500 )edit

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Merge two RS-16 Lidars to create 3D Map

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