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General / Camera calibration Initial parameters
« on: March 16, 2023, 12:29:33 AM »
Hello Alexey and Metashape support,
I searched the Metshape manual and the forum, but I cannot find where/how Metashape comes up with the camera initial parameters.
For example, with the DJI Phantom 4 RTK, the focal length in pixels in the XMP file is 3666, but Metashape used 2840!
Looking at both the XMP and EXIF files, I have not found other camera calibration parameters. So where do these parameters come from? I don't think they are from a previous processing project or are they? Does Metshape download from an online library of camera parameters?
Thanks for this clarification!
I searched the Metshape manual and the forum, but I cannot find where/how Metashape comes up with the camera initial parameters.
For example, with the DJI Phantom 4 RTK, the focal length in pixels in the XMP file is 3666, but Metashape used 2840!
Looking at both the XMP and EXIF files, I have not found other camera calibration parameters. So where do these parameters come from? I don't think they are from a previous processing project or are they? Does Metshape download from an online library of camera parameters?
Thanks for this clarification!