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Fisheye Polynomial in Exif Tag

Hi, I am trying to understand fisheye distortion model in Sequoia camera. There is a field  Fisheye Polynomial  in exif data of the captured images. It is my understanding that they can be used for fisheye undistortion. Kindly indicated how can I use this vector for the undistortion purpose and what does each element in the vector means.   

Dear Muzq,

The distortion parameters are optimized during the first step of processing to give better accuracy for these numbers. It is possible to generate the undistorted images in the Pix4D software, see

https://support.pix4d.com/hc/en-us/articles/202557929-Menu-Process-Save-Undistorted-Images

 

Best regards,