Jun Watanabe, Madoka Hasegawa, Shigeo Kato,"A Watermarking Method for Digital Museum Images," ITC-CSCC'06, Chiang Mai, Thailand, pp.I293-I295, July 2006.
Tatsuya Hirayama, Madoka Hasegawa, Shigeo Kato,"Study on Watermarking Method Using Wavelet Transform and Randomly Composed Vectors," ITC-CSCC'06, Chiang Mai, Thailand,pp.I301-I303, July 2006.
Hajime Kawabata, Madoka Hasegawa, Shigeo Kato,"A Video Search System Using Text Generated By Speech Recognition, "ITC-CSCC'06, Chiang Mai, Thailand, pp.III809-III812, July 2006.
Masahiro Tsuji, Jun Watanabe, Madoka Hasegawa, Shigeo Kato,"A Study on the Reversible Watermarking Method Using Wavelet Transform, "ITC-CSCC'06, Chiang Mai, Thailand, pp.I297-I300, July 2006.
Hisashi Owada, Madoka Hasegawa, Shigeo Kato,"Study on a Data Compression of Dither Images Using a Concept of Schalkwijk Code, "ITC-CSCC'06, Chiang Mai, Thailand, pp.I393-I396, July 2006.