Hello,
it looks like you performed the calibration locally on your host computer.
To then have the calibration module find the file on the device to run the undistort module on the device itself, you'll have to upload it via SFTP.
Similar to this:
but the file name would be something like /var/lib/dv-runtime/calibration.xml
Hope this helps, have a nice week!
--
Luca Longinotti (llongi)
Head of Embedded Platforms
Zurich, Switzerland