Madoka Hasegawa, Shigeo Kato,"Tamper Detection of Digital Watermark Using Vector Set of Wavelet Coefficient," 14th International Conference on Systems Research, Informatics and Cybernetics, Advances in Computer Cybernetics, Baden-Baden, Germany, Volume XI, pp.25-28, July 2002.
Shigeo Kato, Madoka Hasegawa,"Lossless Coding method of Image Sequences for Digital Museum," 14th International Conference on Systems Research, Informatics and Cybernetics, Advances in Computer Cybernatics, Baden-Baden, Germany, Volume XI, pp.29-32, July 2002.
Mitsuhiro Sato, Madoka Hasegawa, Shigeo Kato,"Consideration of Image Quality of Dithered Picture by Constrained Average Method Using Various Probability Distribution Models," 2002 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'02), Phuket, Thailand, pp.1495-1498, July 2002.
Jun Watanabe, Madoka Hasegawa, Shigeo Kato,"Study on Preventing Bit Error of Digital Watermark
Using Orthogonal Transform,"" 2002 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'02), Phuket, Thailand, pp.277-280, July 2002."
Madoka Hasegawa, Shigeo Kato,"Digital Watermarking Method Using Vector Set of Wavelet Coefficients," Proceedings of SPIE, Aero Sense 2002, Orland, USA, Vol.4738, pp.115-124, Apr. 2002.
Shigeo Kato, Madoka Hasegawa,"Data Hiding Method in Adaptive Lossless Coding Scheme," SPIE, Aero Sense 2002, Orland, USA, Vol.4736, pp.176-183, Apr. 2002.
Madoka Hasegawa, Hajime Watanabe, Takashi Yamada, Shigeo Kato,"Watermarking Method for Extracting Embedded Data without Original Image," Proceedings of SPIE, Visual Communications and Image Processing (VCIP'2002), San Jose, USA, Vol.4671, pp.915-922, Jan. 2002.