I can't detect my chessboard in the point cloud

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MEHDI BOUJA
MEHDI BOUJA 2022-7-7
回答： Bipratim Saha 2022-12-29
Hello everyone,
So I was trying to calibrate my lidar and camera using both the app Lidar Camera calibrator and the script in Lidar and Camera Calibration - MATLAB & Simulink - MathWorks France. I was able to detect the chessboard corners on the images but I couldn't detect it on the point clouds (pcd file with x y z values with 32000 points) associated, and I was wondering if it's due to the noisy point cloud and so we must do a preprocessing to the data, or there is any other solution. I have tried multiple positions to place the chessboard (near the lidar, far ) but in all of them it didn't manage to detect the rectangle.

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回答（1 个）

Bipratim Saha
Bipratim Saha 2022-12-29
Hi Mehdi,
As per my understanding, your checkerboard is not getting detected in the point cloud.
Please ensure that you are following the data capturing guidelines as per the following documentation
https://www.mathworks.com/help/lidar/ug/lidar-camera-calibration-guidelines.html#mw_97bfb7f4-c847-44f9-9e31-692ed5c21cd5
Further you can also tune the name-value arguments of the “detectRectangularPlanePoints” as per the following documentation:
https://www.mathworks.com/help/lidar/ref/detectrectangularplanepoints.html#namevaluepairarguments
Hope this helps :)

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