Robust watermark against double attacks of compression and cropping. - Masahiro Takatsuka; Masaaki Kajihara; Yutaka Hirakawa; Kazuo Ohzeki (GCCE, 2014)

Authentication System Using Encrypted Discrete Biometrics Data. - Kazuo Ohzeki; Yuanyu Wei; Masaaki Kajihara; Masahiro Takatsuka; Yutaka Hirakawa; Toru Sugimoto (TRUST, 2014)