Augmented Reality is a mind blowing concept. It's moving way faster than one thinks. I've been fortunate to work with people who are in this field and got to know all of this from them.
This page is to understand how to get into this field and just tinker around to satisfy your curiosity.
Spark AR is a software where you can make your own filters. It's a segment of Facebook. Check it out, click here.
Fun To Do: You can actually publish your own filter as an OFFICIAL filter on Instagram. Go ahead and try it out!