Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Katada Naoyuki and Aoki Kiyotaka and Mishima Yurie and Shinmi Takuji and Tamura Hisashi,NHK Broacasting Center CT-415 Virtual Studio System and Operation,ITE Technical Report,1342-6893,The Institute of Image Information and Television Engineers,1997,21.15,0,43-48,https://cir.nii.ac.jp/crid/1390001204524272256,https://doi.org/10.11485/itetr.21.15.0_43