Stereo Camera Calibration with ROS and OpenCV

In this tutorial, I’m gonna show you stereo camera calibration with ROS and OpenCV. So you need a pair of cameras, I bought a pair of this USB webcam which is okay for this task.

1)Save the following text under “stereo_usb_cam_stream_publisher.launch

2)Then run the following node to publish both cameras.

3)Now call the calibration node:

Super important:

If you have USB cam with some delays you should add the following “–no-service-check –approximate=0.1”

4)Pose the chess board in different position, and then click on the calibrate and save button.

5) The result gonna be store at /tmp/calibrationdata.tar.gz. Unzip the file and save it under “/home/<username>/.ros/stereo_camera_info

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[…] my other tutorial, I showed you how to calibrate you stereo camera. After Calibration, we can get disparity map […]