Digital watermarking method using LDPC code for clipped image. - Nobuhiro Hirata; Masaki Kawamura (IWIHC@AsiaCCS, 2014)

Watermarking Method Using Concatenated Code for Scaling and Rotation Attacks. - Nobuhiro Hirata; Masaki Kawamura (IWDW, 2015)

Image Watermarking Method Satisfying IHC by Using PEG LDPC Code. - Nobuhiro Hirata; Takayuki Nozaki; Masaki Kawamura (IEICE Trans. Inf. Syst., 2017)