How can the parameters of the calibrated fisheye camera model in matlab and opencv be converted to each other?

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cui,xingxing 2022-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/1772325-how-can-the-parameters-of-the-calibrated-fisheye-camera-model-in-matlab-and-opencv-be-converted-to-e

编辑： cui,xingxing 2022-9-27

as far as i know, Computer Vision Toolbox calibration algorithm uses the fisheye camera model proposed by Scaramuzza , while opencv library uses the fisheye model by Juho Kannala and Sami Brandt. If I have already calibrated the fisheyeIntrinsic parameters in the cv toolbox, how do I convert them into the corresponding opencv 4 polynomial coefficients and the intrinsic camera matrix?（and vice versa）your answer would be greatly appreciate!

Note: since Matlab R2021b，TMW has introduced cameraIntrinsicsFromOpenCV, cameraIntrinsicsToOpenCV ,etc functions,but these functions are only for pinhole cameras, not fisheye large aberration camera models

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jose daniel hoyos giraldo 2022-9-24

Thx! If can share it here when you do it, would be great.

cui,xingxing 2022-9-27

编辑：cui,xingxing 2022-9-27

@jose daniel hoyos giraldo I have implemented a small feature that allows you to use the OpenCV fisheye distortion model parameters directly in matlab to de-distort，please refer these.

1 、opencv fisheye image distortion matlab implementation

2、How to fit fisheye image distortion coefficients using deep learning?

3、How to get distortion coefficients from fisheye calibration result?

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