How to Calibrate a ZED Stereo Camera

All lens have some distortion no matter how big or small, so you should correct for lens distortion by calibrating a camera in terms of software. Especially, this technique is used for robotics and the distortion effects so much while a robot is mapping some obstacles using a camera as their eyes. Today, I am showing how to calibrate a ZED stereo camera for your project.

Environments & Equipments

I assume that you already have these environments and equipment to calibrate a ZED stereo camera. Please go to these links above, and set up correctly.

How to make a catkin workplace for ZED

Compiling

Calibration

Open another tab on terminal

For the calibration, I used calibration checkboard (6×4, square size 35mm). When you use another checkboard, you will just change the command after –size and –square.

Important!!!

Do NOT forget the command of

The driver does not support set_camera_info service. Without this command, you might have got this error message after rosrun.

There are active topics while roslaunch zed_wrapper zed.launch

Calibration Result

Done!