One use for this is already visible in the weather programs of Taiwan's three main TV stations. The image on the screen shows the broadcaster standing in front of an enormous weather map. In fact, in the studio the only thing behind the meteorologist is a blue cloth backdrop. It's just that the two images are "inlaid" using composite imaging techniques.
呈現在螢光幕上的畫面，是播報員站在大型氣象圖前解說，實際上在攝影棚內，播報員的背後僅是一幅藍色布幕，只不過透過影像合成技術，將兩者「鑲嵌」在一起罷了。