I used the camera calibrator app to calibrate lens distortion and I specified correct checkerboard size of 8mm. The calibration goes fine and i’m able to undistort images and points. However, the plot from showextrinsics() shows camera at 8mm distance from object but in reality it is 140mm. Why is this wrong?
My setup has a camera looking downwards and pattern is placed at the same working distance in all 30+ images where the lens is focused.
Calibration settings: All default settings – Standard lens, 2 coeffs, no tangential distortion, no skew, etc.I used the camera calibrator app to calibrate lens distortion and I specified correct checkerboard size of 8mm. The calibration goes fine and i’m able to undistort images and points. However, the plot from showextrinsics() shows camera at 8mm distance from object but in reality it is 140mm. Why is this wrong?
My setup has a camera looking downwards and pattern is placed at the same working distance in all 30+ images where the lens is focused.
Calibration settings: All default settings – Standard lens, 2 coeffs, no tangential distortion, no skew, etc. I used the camera calibrator app to calibrate lens distortion and I specified correct checkerboard size of 8mm. The calibration goes fine and i’m able to undistort images and points. However, the plot from showextrinsics() shows camera at 8mm distance from object but in reality it is 140mm. Why is this wrong?
My setup has a camera looking downwards and pattern is placed at the same working distance in all 30+ images where the lens is focused.
Calibration settings: All default settings – Standard lens, 2 coeffs, no tangential distortion, no skew, etc. camera calibrator app MATLAB Answers — New Questions

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