My idea is to Capture background video as well as spherical HDR images, similar to spherical HDR images you would Capture too integrate CG into live-action, but instead use this lighting information to showing through LED televisions (like the lightbox in gravity but grass roots style) that will light the talent to help integrate the talent into the composited background.
So I would use A green screen set up and A bunch of LED televisions for my studio set up.
To that makes sense?
To you think it would work?