I'm drafting the specification of a patent for my invention. The invention is in the field of computer vision and augmented reality. I'm quite sure that the main subject mater is novel enough and useful enough to be patentable. However, in order to implement my system I'm using some technologies that are quite cutting edge but I know there is a lot of other people working on the same thing and probably there is some patent filed for these already -- although I haven't been able to find any published patents on these. I'm implementing the mentioned technologies myself by putting together parts that independently don't seem that novel to me. So I think that if I wanted to patent these underlying technologies too it would be more difficult.
My main intention is to patent the final invention, not the underlying technologies. However, I want to make sure my description meets the sufficient disclosure criteria. Describing what my invention does is not too difficult, but describing the underlying technologies is more difficult, in part because: (a) I haven't finished the prototype and some of the unfinished parts use the mention technologies, which I'm still implementing; (b) I'm not so sure I could patent these underlying technologies anyway.
So would it be safe to write a patent specification describing an invention and give references to the closest prior art for the invention and for the underlying technologies I use? Or would it be necessary to describe these underlying technologies in detail too?