iRVision plane spacing

    I have a couple of questions regarding plane spacing in the iRVision camera calibration setup. I am doing a robot generated grid which has it set right away to 100mm plane spacing. How does this number affect the calibration? Also what is the point of having 2 planes?

    Any insight into this would be greatly appreciated, I'm just trying to better wrap my head around the calibration process and how all the features tie into each other. Thanks!

    A two plane calibration allows the vision software to calculate the actual focal length of the lens instead of going off the nominal value. This allows the vision process to more accurately compensate for scale when the work piece is at different distances from the camera.

    You should always do a 2 plane calibration if possible for best accuracy. 100-150 mm is the recommended distance, or if you are using vision depalletizing then the distance from the top to bottom of the stack.

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