Nomad
Posts: 1,117
Re: Telemetry Camera Orientation Definitions

Hi there,

The reason there are no definitions is the camera can potentially record any type of data, and is also able to label the data so that it is self-explanatory, but that's not the case with the orientation streams, generally. The components are just labelled "CameraOrientation" , "1", "2" and "3" precisely because the camera does not label them, so the extractor just gives them numbers so they can be identified.

According to GoPro ( https://github.com/gopro/gpmf-parser#hero8-black-v12-adds-removes-changes-otherwise-supports-all-her... ) that stream is expressed in quaternions. I personally find them very complicated, so here's some background on what they are: https://youtu.be/d4EgbgTm0Bg

Finding out the orientation of the camera relative to the velocity involves some challenges. You could also use a combination of the gyroscope and the accelerometer sensors. Anyway, it will be interesting to see your progress, so feel free to post updates here.

How to think about this 4d number system in our 3d space.Part 2: https://youtu.be/zjMuIxRvygQInteractive version of these visuals: http://3imaginary1real.com...