Systems, methods and apparatuses of digital assistants in an augmented reality environment and local determination of virtual object placement and apparatuses of single or multi-directional lens as portals between a physical world and a digital world component of the augmented reality environment

This invention describes a system for placing virtual billboards within real-world environments using augmented reality. It works by identifying a specific altitude in a physical space and then displaying the virtual billboard at or near that height, orienting it to be easily seen by a user. The system can also identify physical objects in the environment to aid in the billboard's placement.