computer-generated imagery      
noun [ U ] uk/kəmˌpjuː.tə.dʒen.ə.reɪ.tɪd ˈɪm.ɪ.dʒər.i/ us/kəmˌpjuː.t̬ɚ.dʒen.ə.reɪ.t̬ɪd ˈɪm.ɪ.dʒɚ.i/ (abbreviation CGI)
 计算机成像
the process of using computers to create pictures or characters in film and television