Speaker based on multipulse excitation and UPC vocal-tract model. - Seiichiro Hangai; Kazuhiro Miyauchi (ICSLP, 1990)

Speaker verification using locations and sizes of multipulses on neural networks. - Seiichiro Hangai; Shigetoshi Sugiyama; Kazuhiro Miyauchi (ICSLP, 1992)

Collaborative Method for Quality Evaluation of Coded Pictures. - Seiichiro Hangai; Takayuki Hamamoto; Hidetaka Takano (ICIP (2), 1999)

An Interactive Quality Evaluation of Reduced Polygon Model. - Daisuke Kase; Takayuki Hamamoto; Seiichiro Hangai (ICIP, 2000)

Perceptual Color on Internet Browser. - Seiichiro Hangai; Takayuki Hamamoto; Masato Kawamoto (IEEE International Conference on Multimedia and Expo (I), 2000)

On-Line Signature Verification based on Altitude and Direction of Pen Movement. - Seiichiro Hangai; Shinji Yamanaka; Takayuki Hamamoto (IEEE International Conference on Multimedia and Expo (I), 2000)

A Study on Subjective Evaluation of Facial Polygon Model. - Daisuke Kase; Takayuki Hamamoto; Seiichiro Hangai (IEEE International Conference on Multimedia and Expo (II), 2000)

Writer Verification Using Altitude and Direction of Pen Movement. - Seiichiro Hangai; Shinji Yamanaka; Takayuki Hamamoto (ICPR, 2000)

Lip Recognition Using Morphological Pattern Spectrum. - Makoto Omata; Takayuki Hamamoto; Seiichiro Hangai (AVBPA, 2001)

Spoken word recognition with digital cochlea using 32 DSP-boards. - Masao Namiki; Takayuki Hamamoto; Seiichiro Hangai (ICASSP, 2001)

A proposal of objective measure considering subjective observation areas. - Takayoshi Kusayama; Takayuki Hamamoto; Seiichiro Hangai (ICIP (2), 2001)

Signature Verification Adapting To Intersession Variability. - Shinji Yamanaka; Masato Kawamoto; Takayuki Hamamoto; Seiichiro Hangai (ICME, 2001)

A new moving picture coding scheme for scanning compatible broadcasting. - Kenji Sugiyama; Gou Obara; Seiichiro Hangai (IEEE Trans. Consumer Electron., 2001)

Improvement of On-line Signature Verification System Robust to Intersession Variability. - Masato Kawamoto; Takayuki Hamamoto; Seiichiro Hangai (Biometric Authentication, 2002)

A proposal of writer verification of hand written objects. - Yosuke Kato; Takayuki Hamamoto; Seiichiro Hangai (ICME (2), 2002)

Writer Identification Using Finger-Bend in Writing Signature. - Seiichiro Hangai; Takeshi Higuchi (ECCV Workshop BioAW, 2004)

A Comparison of Subjective Picture Quality with Objective Measure Using Subjective Spatial Frequency. - Yasushi Sugama; Takahiro Yoshida; Takayuki Hamamoto; Seiichiro Hangai; Choong Seng Boon; Sadaatsu Kato (ICME, 2005)

Perceptual quality of motion of video sequences on mobile terminals. - Sadaatsu Kato; Choong Seng Boon; Akira Fujibayashi; Seiichiro Hangai; Takayuki Hamamoto (SIP, 2005)

Motion Compensated Frame Rate Up-Conversion for Low Frame Rate Video. - Kenji Sugiyama; Mitsuhiro Fujita; Takahiro Yoshida; Seiichiro Hangai (VLBV, 2005)

Development and Evaluation of a Keyword-Accessible Lecture Video Player. - Takahiro Yoshida; Kazuki Tada; Seiichiro Hangai (Int. J. Distance Educ. Technol., 2005)

A Study on the Effect of ROI Masks on Face Recognition System Using Digital Recorder. - Mitsuhiro Fujita; Takahiro Yoshida; Seiichiro Hangai (ICASSP (2), 2006)

An Identification of Japanese Numerical Characters on a Biometrical Smart Pen System. - Takeshi Takita; Seiichiro Hangai; Jürgen Kempf; Christian Hook; Georg Scharfenberg (AutoID, 2007)

HMM Based Signature Identification System Robust to Changes of Signatures with Time. - Naoya Wada; Seiichiro Hangai (AutoID, 2007)

Information Hiding Method Utilizing Low Visible Natural Fiber Pattern for Printed Documents. - Kitahiro Kaneda; Kenji Hirano; Keiichi Iwamura; Seiichiro Hangai (IIH-MSP, 2008)

A Study of Information Hiding Performance Using Simple Dot Pattern with Different Tile Sizes. - Kitahiro Kaneda; Fumiya Nagai; Keiichi Iwamura; Seiichiro Hangai (IIH-MSP, 2008)

Spoken Word Recognition from Side of Face Using Infrared Lip Movement Sensor. - Takahiro Yoshida; Erika Yamazaki; Seiichiro Hangai (PIT, 2008)

Special Section on Image Media Quality. - Seiichiro Hangai (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)

A Comparison of Three Kinds of DP Matching Schemes in Verifying Segmental Signatures. - Seiichiro Hangai; Tomoaki Sano; Takahiro Yoshida (COST 2101/2102 Conference, 2009)

Genre classification method for home videos. - Masaru Sugano; Toru Yamada; Shigeyuki Sakazawa; Seiichiro Hangai (MMSP, 2009)

Objective Evaluation of Components of Colour Distortions due to Image Compression. - Amal Punchihewa; Jonathan Armstrong; Seiichiro Hangai; Takayuki Hamamoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Signature Features. - Marcos Martinez-Diaz; Julian Fiérrez; Seiichiro Hangai (Encyclopedia of Biometrics, 2009)

Signature Matching. - Marcos Martinez-Diaz; Julian Fiérrez; Seiichiro Hangai (Encyclopedia of Biometrics, 2009)

An Improvement of Robustness Against Physical Attacks and Equipment Independence in Information Hiding Based on the Artificial Fiber Pattern. - Kitahiro Kaneda; Yuki Fujii; Keiichi Iwamura; Seiichiro Hangai (ARES, 2010)

A study on light information hiding method compatible with conventional H.264/AVC decoder. - Shuya Yamadera; Naoya Wada; Seiichiro Hangai (EUVIP, 2010)

Values of Time-series Data defined in 19794-7 for Signature Verification. - Seiichiro Hangai; Asami Hori; Takahiro Yoshida (BIOSIG, 2011)

A study on DCT coefficients of time series pen position data for printed signature verification. - Takahiro Yoshida; Asami Hori; Seiichiro Hangai (ISPA, 2013)

Signature Features. - Marcos Martinez-Diaz; Julian Fiérrez; Seiichiro Hangai (Encyclopedia of Biometrics, 2015)

Signature Matching. - Marcos Martinez-Diaz; Julian Fiérrez; Seiichiro Hangai (Encyclopedia of Biometrics, 2015)

A Study on Signature/Sign Authentication with Touching Information on Smart Phone. - Takahiro Yoshida; Yuki Tanaka; Seiichiro Hangai (ICBBT, 2017)

A Proposal of Objective Evaluation Measures Based on Eye-Contact and Face to Face Conversation for Videophone. - Keiko Masuda; Ryuhei Hishiki; Seiichiro Hangai (ICIAP (2), 2017)

Colorization Algorithm based on Image Segmentation and Graph Signal Processing. - Mamoru Sugawara; Kazunori Uruma; Seiichiro Hangai (APSIPA, 2018)

Region-Wise Super-Resolution Algorithm Based On the Viewpoint Distribution. - Kazunori Uruma; Shunsuke Takasu; Keiko Masuda; Seiichiro Hangai (PCS, 2018)

Image Segmentation Based Graph-Cut Approach to Fast Color Image Coding via Graph Fourier Transform. - Kaito Abiko; Kazunori Uruma; Mamoru Sugawara; Seiichiro Hangai; Takayuki Hamamoto (VCIP, 2019)

Text/Language-Independent Unknown Speaker Rejection Method using LSP Codes. - Toru Hiyama; Armin Sehr; Takahiro Yoshida; Seiichiro Hangai (GCCE, 2020)

A Method of Toothbrush Position Measurement using AR Markers. - Shuhei Hayakawa; Ghassan Al-Falouji; Gerald Schickhuber; Roland Mandl; Takahiro Yoshida; Seiichiro Hangai (LifeTech, 2020)

Local and Global Graph Approaches to Image Colorization. - Mamoru Sugawara; Kazunori Uruma; Seiichiro Hangai; Takayuki Hamamoto (IEEE Signal Process. Lett., 2020)