translation.en: So we worked with a company that specializes in camera surveillance, and we asked them to develop a piece of software with us, using a camera that could look at people in the room, track them and replace one person with the background, rendering them invisible.
translation.zh: 我们就一家 专业从事摄像监视的公司合作 请他们为我们设计了一个软件 通过一台摄像机 能够监视屋子里的人，跟踪他们 然后以背景替代影像使其得以隐身