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Making the jump from emb sys prog to AR

By JulianG-383c0 ·
Tags: Off Topic
Newbie situation: I have done some simple programming in assembler and C for embedded microcontroller systems, mostly in vocational college and as an intern, but I have a new challenge where I need to write an augmented reality app for an untethered AR headset (ODG R-7HL and, hopefully, Google Glass, if an extreme environment version is released).

I have downloaded and read ODG's guidelines for developers of their products, and I have some questions, which I hope heads wiser than mine can point me towards answers. Yes, I know Google is my friend, but without some guidance, I see myself going down a lot of rabbit holes, before I get on the learning and self-study path/s I need to go.
My questions:
1. The guts of the R-7HL uses Android Marshallow OS and a proprietary variant ReticleOS. What body of knowledge do I need to program an Android OS?

2. What other computer science fundamentals should I study?

3. I need to do spatial coordinate transformations from augmented and differential global navigation satellite system (A-DGNSS) datafeed to local user-defined coordinates. How computationally intensive is this operation?

Thanks in advance.

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