What is the difference of 'Low' and 'High' image distortion in Camera Calibrator App

In Matlab R2021b, thers is a new property named 'Image distortion', what does this means? What is the difference of 'Low' and 'High'

Answer 1

[Giridharan Kumaravelu]

When an image is distorted, straight lines in the image appear to be curved. Image distortion is typically high in cameras with wide-angle lens such as fish-eye cameras. Therefore, set this property to "high" only if your camera has a wide-angle lens.

Following is a low distortion image:

Following is a high distortion image:

[Wentao Yuan]

Thanks for your reply, but could you please provide some underlying details of Matlab calibration algorithm for this property.

Looking forward to your reply.

[Giridharan Kumaravelu]

The calibrator app calls the detectCheckerboardPoints function to detect the checkerboard corner points. This distortion property setting is equivalent to setting the "HighDistortion" boolean Name-Value pair in the detectCheckerboardPoints function call.

[Wentao Yuan]

Thanks