[1] Nippon Telegraph & Tel Corp, Tokyo, Japan
[2] Stanford Univ, Stanford, CA 94305 USA
[3] IEICE Trans Fundamentals, Stanford, CA USA
[4] IEEE ISPACS Int Steering Comm, Stanford, CA USA
[5] Inst Elect & Elect Engn, Tokyo, Japan
[6] Inst Elect Informat & Commun Engineers IEICE Japa, Tokyo, Japan
[7] Niigata Univ, Dept Informat Engn, Niigata, Japan
[8] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Fuchu, Tokyo, Japan
[9] Osaka Univ, Grad Sch Engn Sci, Suita, Osaka, Japan
[10] Chiba Inst Technol, Narashino, Chiba, Japan
[11] Inst Image Informat & Televis Engineers, Tokyo, Japan