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I need a camera matrix (fx, fy, cx, cy) for calling cv::projectPoints. My camera cannot be calibrated, but I got the parameters of the camera:
cv::projectPoints
focal distance: 1.8 focal length: 4.8 aperture: 4.0 sensor width: 5.63 sensor height: 5.63 horizontal resolution: 1024 vertical resolution: 1024
How can I calculate the camera matrix for my camera?