What if- Cameras could differentiate man from the background

I am not a technology guy, and I don’t like sci-fi movies or fiction, but I like to imagine what technology can do in the future, because imagining an innovation is the beginning of it. These days when multiple people chat on web cams, they see each other in their respective backgrounds. It is a common meeting but everybody is in a different room. Who knows it may be possible in the future that the camera will differentiate the person from his background, and will place him in a shared meeting room. This way all the people who are present will be seen sitting in a virtual room offered by the computer. The virtual meeting room can come in variety of options, such as a conference room, drawing room, park, your dream tourist destination etc. It will bring a sense of closeness and may give comfort to people who claim to be in the office while sitting on a beach.