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I am using HoloLens 2 with Unity 2019.4. I have access to research mode thanks to this repo .
I can get the raw data from the accelerometer, but I don't know in which frame they are expressed. If I assume it is in the camera (headset) frame, then it does not fit (I calibrate with gravity but when I subtract gravity I still have a constant acceleration for static positions). The accelerometer does not seem to be aligned with the camera axis.
How do I get to know the orientation of the accelerometer in relation to the headset (or world)?
Thanks.
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Hello, Welcome to Microsoft Q&A,
Have you read HoloLens2ForCV/ResearchMode-ApiDoc.pdf at main · microsoft/HoloLens2ForCV · GitHub? Is it helpful for you? Can you share the accelerometer data you got and calculation results? It would be helpful if you could provide reproducible code snippets.
Hi,
I managed to find the orientation of the accelerometer axis by comparing the direction of gravity to the world Up vector. I was surprised that it is not aligned with the headset, I got a local orientation (in relation to the Unity camera) of (353f, 345f, 7f).
Now I can compute acceleration without gravity, it works.
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Hi, I'm working on a similar problem with hololens 2, but how did you get the raw data from the accelerometer? (I need the height reached when the user jumps)
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