Hi everyone,
Was wondering if anyone experienced the slight drift with wide lens after calibrating? I've calibrated my 16mm lens, and the focal length result after calibration is nearly the same as my physical lens (about 16.2 something), but I noticed some slight drifting. Some of my colleagues also experienced this issue, so I wonder if there is something wrong with my calibration method (I use OpenCV lens calibration), or is there something that should be noticed when calibrating wide lens?
Thanks.
Hello,
If you want a calibration for a fixed zoom position you can use Vanishing Point's Calibrate X software.
It writes the result into a JSON file. We have a helper compound called Lens_Distort_Vanishing that can read it up.
Wire it as follows:
Specify the generated JSON file for this module.
Then put your INPUT in Manual Lens mode.