Can AR Sessions be combined with pixel streaming?

I am developing an AR app that will be hosted via an online server. The app will be run mainly on mobile devices. The application will be an image target based application. Is there a way to have AR sessions work with pixel streaming? More specifically, if the application is being hosted via a server how can I program access being granted (Asking for permission) to the mobile devices camera so that the images can be tracked?

Attached is a rough example of the asking for permission being done by automatically by 8thwall niantic studio. I want to bring the same functionality to my unreal engine project. Is this possible? if So how?