Project SOLI has so much potential, WTF is wrong with them. Make a smartwatch or use it in the phone for something more than simple gestures/ detecting people.
Here is a mini Doc -
-http://www.nime.org/proceedings/2017/nime2017_paper0054.pdf
-https://ait.ethz.ch/projects/2016/deep-soli/downloads/deep_soli.pdf
Here is a paper on it -http://www.ivanpoupyrev.com/wp-content/uploads/2017/01/siggraph_final.pdf
Uni lecture - https://www.cs.virginia.edu/~bjc8c/class/cs6501-f17/lien16soli.pdf