Hi @TKSharpless
According to the calibration.xml file
Bundle file v0.3
$(cameraCount) $(pointsCount)$ExportCameras(
$(f*scale) $(k1) $(k2)
$(R00:g) $(R01:g) $(R02:g)
$(-R10:g) $(-R11:g) $(-R12:g)
$(-R20:g) $(-R21:g) $(-R22:g)
$(tx:g) $(-ty:g) $(-tz:g))$ExportPoints(
$(x:.8) $(y:.8) $(z:.8)
$(r) $(g) $(b)
$(trackLength)$ExportTrack( $(imageIndex) $(featureIndex) $(x*scale:.3) $(-y*scale:.3)))
it seems like the coordinates are in local coordinate system (3D) and in pixels for 2D.
I suppose the XMP camera math is also used there in the same way.