A study on the mechanism of the minimum searching by the chaotic neural network. - Masaya Ohta; Akio Ogihara; Shinobu Takamatsu; Kunio Fukunaga (ICNN, 1995)

A method of embedding robust watermarks into digital images. - Akira Shiozaki; Ken-ichi Hashida; Akio Ogihara (Syst. Comput. Jpn., 1999)

Discrimination Method of Synthetic Speech Using Pitch Frequency against Synthetic Speech Falsification. - Akio Ogihara; Hitoshi Unno; Akira Shiozaki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Correlation-Based Video Watermarking Method Using Inter-Frame Similarity. - Motoo Yamamoto; Akira Shiozaki; Motoi Iwata; Akio Ogihara (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Reversible Watermarking Method for JPEG Images. - Akira Shiozaki; Motoi Iwata; Akio Ogihara (IEICE Trans. Inf. Syst., 2008)

Multi-Layer Audio Watermarking Based on Amplitude Modification. - Akio Ogihara; Harumi Murata; Motoi Iwata; Akira Shiozaki (IIH-MSP, 2009)

Digital watermarking method for tamper detection and recovery of JPEG images. - Motoi Iwata; Tomoki Hori; Akira Shiozaki; Akio Ogihara (ISITA, 2010)

An audio watermarking method by using automatic music transcription information. - Harumi Murata; Akio Ogihara; Motoi Iwata; Akira Shiozaki (ISITA, 2010)

Digital Watermarking Method Warranting the Lower Limit of Image Quality of Watermarked Images. - Motoi Iwata; Tomoo Kanaya; Akira Shiozaki; Akio Ogihara (EURASIP J. Adv. Signal Process., 2010)

An audio watermarking method using sampled sound for polyphonic music. - Harumi Murata; Akio Ogihara; Motoi Iwata; Michifumi Yoshioka (ISCIT, 2012)

An audio watermarking method for music having sparse representation. - Harumi Murata; Akio Ogihara; Shigetoshi Hayashi (ISPACS, 2013)

An Audio Watermarking Method Using Pitch-Transformed Sound of Original Music. - Harumi Murata; Akio Ogihara (IIH-MSP, 2014)

An Audio Watermarking Method Using Tones of Diatonic Chord. - Harumi Murata; Akio Ogihara (IIH-MSP, 2015)

A study of audio watermarking method using nonharmonic note as watermark signal. - Harumi Murata; Akio Ogihara (ISCIT, 2015)

Sound Quality Evaluation for Audio Watermarking Based on Phase Shift Keying Using BCH Code. - Harumi Murata; Akio Ogihara; Masaki Uesaka (IEICE Trans. Inf. Syst., 2015)

A study of audio watermarking method using non-negative matrix factorization. - Harumi Murata; Akio Ogihara (BMSB, 2016)

A Study of Audio Watermarking Method Using Non-negative Matrix Factorization for a Duet of Different Instruments. - Harumi Murata; Akio Ogihara (IIH-MSP (2), 2017)

Note Estimation by Contaminated Normal Distribution for Audio Watermarking Method Using Non-negative Matrix Factorization. - Harumi Murata; Akio Ogihara (ISPACS, 2018)

Tolerance Evaluation of Audio Watermarking Method Based on Modification of Sound Pressure Level between Channels. - Harumi Murata; Akio Ogihara; Shigetoshi Hayashi (IEICE Trans. Inf. Syst., 2018)

Direction Estimation of Instrumental Sound Sources Using Regression Analysis by Convolutional Neural Network. - Kaho Yamamoto; Akio Ogihara; Harumi Murata (Circuits Syst. Signal Process., 2023)

An Audio Watermarking Method Based on Arrange Technique Using Tension Chords. - Harumi Murata; Kaho Yamamoto; Akio Ogihara (GCCE, 2024)