Project Tango Demoed with Qualcomm at SIGGRAPH 2016
 

Project Tango at this point is probably not new to anyone reading this as we’ve discussed it before, but in the past few years Google has been hard at work making positional tracking and localization into a consumer-ready application. While there was an early tablet available with an Nvidia Tegra SoC inside, there were a number of issues on both hardware and software. As the Tegra SoC was not really designed for workloads that Project Tango puts on a mobile device, much of the work was done on the GPU and CPU, with offloading to dedicated coprocessors like ST-M’s Cortex M3 MCUs for sensor hub and timestamp functionality, computer vision accelerators like a VPU from Movidius, and other chips that ultimately increased BOM and board area requirements.

http://www.anandtech.com/show/10522/...omputer-vision