Thanks Alexey,
I didn't get too far for now. What should I do in case when I have file with the IMU data which is Label, Easting, Northing, Elevation, Pitch, Roll and Heading. The other file contains my camera parameters with the IMU offset data. Is there any way I can proceed to Build Points without Alignment. Alignment process cannot do much since it is just forest area without any real detail.
Best regards,
Darko