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can't perform an effective grid calibration

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Hi everyone

I have a system that have a camera in a distance of about 60cm from object, and the FOV is a rectangle with about 50cm*60cm dimensions. because of this big FOV I had to use a lens with 5mm focal length. with this lens I have about 7% of error in the corners of the image because of the lens distortion. and when I use the Distortion Model(Grid) calibration step in Vision Assistant , the 7% error exists again.

ericmateovisan_0-1620552327993.png

 

please let me know if there is a tip in setting or anything else that would help.. 

 

this is my main picture:

ericmateovisan_1-1620552516136.png

 

and this is the corrected image after calibration process:

 

ericmateovisan_2-1620552568149.png

 

 

thank you in advance

best regards, Eric

 


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