Suppression of Polarization Dependent Loss by Using a Single Birefringent Fiber for Low-Coherence Signal. - Mitsuhiro Tateda; Kei Ozawa (IEICE Trans. Commun., 2012)

Multibit Embedding Algorithm for Steganography of Palette-Based Images. - Shoko Imaizumi; Kei Ozawa (PSIVT, 2013)