Hello Cody,
Thank you a lot. You made me more clear about Multiplexer tool.
And yes, my sensor altitude data are Ellipsoidal height from GPS.
I tried entering "0" for the average elevation with the metadata in my last reply,
but the result MISB video does not have the frame outline.
so I convert it to Orthometric height as attached below.
Dropbox - metadata16.csv
This time can I enter "10" for the average elevation?
Besides, I am a little doubt about FIXED SensorHeightAboveGround. It is same as SensorAltitude, right?
You said that in my case, I do not need to input ground elevation values.
So I can delete a SensorAltitude field from the metadata file?
Or maybe I should enter "0" for all values in a SensorAltitude field?