長谷川まどか, 癸生川克也, 加藤茂夫,"多値-2値系列変換による画像情報源の2値化伝送," 画像電子学会誌, Vol.29, No.4, pp.360-368, July 2000.
Madoka Hasegawa, Shigeo Kato, Yoshifumi Yamada,"Generation of a Compact Code for Extended Binary Memoryless Sources with Low Entropy," Electronics and Communications in Japan, Part 3, Vol.83, No.1, pp.70-77, Jan. 2000.
Madoka Hasegawa, Shigeo Kato,"Notes on Digital Watermark for Still Images Having Tolerance for Image Trimming," International Symposium on Information Theory and Its Applications (ISITA'00), Honolulu, Hawaii, USA, pp.89-92, Nov. 2000.
Shigeo Kato, Madoka Hasegawa, Muling Guo,"Reversible Variable Length Code Based on Parity-Check for Efficient Transmission," International Symposium on Information Theory and Its Applications (ISITA'00), Honolulu, Hawaii, USA, pp.374-377, Nov. 2000.
Susumu Nishida, Muling Guo, Madoka Hasegawa, Shigeo Kato,"Partially Decodable and Reversible Variable Length Code for Efficient Image Transmission," 2000 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'00), Pusan, Korea, pp.458-461, July 2000.
Tomokazu Onuki, Takeharu Adachi, Madoka Hasegawa, Shigeo Kato,"A Study on a Digital Watermarking Method for Still Images," 2000 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'00), Pusan, Korea, pp.19-22, July 2000.
Shigeo Kato, Madoka Hasegawa,"Scalable and Lossless Transmission of Multi-Level Images using Minimized Average Error Method," Proceedings of SPIE, Visual Communications and Image Processing (VCIP'2000), Perth, Australia, pp.465-472, June 2000.
Madoka Hasegawa, Shigeo Kato,"Block Boundary Detection Method from JPEG Images for Embedded Watermark Detection," Proceedings of SPIE, Visual Communications and Image Processing (VCIP'2000), Perth, Australia, pp.1536-1543, June 2000.