Hi /sci/.

Does anyone here is experienced/familiar with research/algorithms involving tracking (multiple)cameras based on it's output(+ sensors)? Ie. no markers, no predefined terrain, just move camera around and let it track its position based on movement of dynamic feature points.

Years ago I've encountered these two projects:
https://www.robots.ox.ac.uk/~gk/PTAM/
http://www.robots.ox.ac.uk/~bob/research/research_ptamm.html
I wanted to recreate something like that for Augmented Reality applications, but back then consumer level VR/AR was pretty much nonexistent. But now, as I got valve headset, I can go back to my dream project.
I haven't dive into papers yet, but they seem pretty good. But on the other hand, they both are relatively old and there have been significant progress in this field. Namely, ARCore works great, but it's closed source and it's only available for selected android phones.

My end goal is to put my computer at my back and utilize Valve Index with its two RGB cameras(and maybe attach depth camera at the center accessory slot) and it's sensors(can't find information about any accelerometer/gyroscope), to create Augmented Reality environment that can work anywhere without use of base stations.

What do you guys think? Does anyone have any links to relevant researches, books or other information about this topic? These two links is literally everything I have.