[1] Science and Technology Research Laboratories, Japan Broadcasting Corporation (NHK), Tokyo, Japan
[2] iTEAM Research Institute, Universitat Politecnica de Valencia, Valencia, Spain
[3] Nagoya Station, Japan Broadcasting Corporation (NHK), Nagoya, Japan
[4] Hiroshima Station, Japan Broadcasting Corporation (NHK), Hiroshima, Japan
[5] Engineering Administration Department, Japan Broadcasting Corporation (NHK), Tokyo, Japan