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2010 – 2019
- 2016
[j5]Kazuo Ohzeki, Ryota Aoyama, Yutaka Hirakawa:
Minimum Variance Method to Obtain the Best Shot in Video and its Effectiveness for Face Recognition. Int. J. Comput. Sci. Appl. 13(2): 29-44 (2016)- 2015
- [c11]Kazuo Ohzeki, Ryota Aoyama, Yutaka Hirakawa:
Minimum variance method to obtain the best shot in video for face recognition. FedCSIS 2015: 869-874 - 2014
- [c10]Masahiro Takatsuka, Masaaki Kajihara, Yutaka Hirakawa, Kazuo Ohzeki:
Robust watermark against double attacks of compression and cropping. GCCE 2014: 200-201 - [c9]Kazuo Ohzeki, Yuanyu Wei, Masaaki Kajihara, Masahiro Takatsuka, Yutaka Hirakawa, Toru Sugimoto:
Authentication System Using Encrypted Discrete Biometrics Data. TRUST 2014: 210-211 - 2012
- [j4]Yutaka Hirakawa, Motohiro Take, Kazuo Ohzeki:
Pass-Image Authentication Method Tolerant to Random and Video-Recording Attacks. Int. J. Comput. Sci. Appl. 9(3): 20-36 (2012) - [c8]Kazuo Ohzeki, Yuanyu Wei, Yutaka Hirakawa, Kiyotsugu Sato:
Consideration of the Watermark Inversion Attack and Its Invalidation Framework. IWDW 2012: 98-110 - 2011
- [c7]Yutaka Hirakawa, Hiroyuki Take, Kazuo Ohzeki:
Pass-Image Authentication Method Tolerant to Video-Recording Attacks. FedCSIS 2011: 767-773 - [c6]Kazuo Ohzeki, Yuanyu Wei, Yutaka Hirakawa, Kiyotsugu Sato:
A New Watermarking Method with Obfuscated Quasi-Chirp Transform. IWDW 2011: 57-71
2000 – 2009
- 2009
- [c5]Yutaka Hirakawa, Yoshifumi Matsuda:
The utilization method of idle PC resources. IUCS 2009: 325-328 - 2005
- [c4]Tetsushi Morita, Mitsuhiro Yuitou, Tetsuo Hidaka, Yutaka Hirakawa:
Visualization Methods Using Three-Dimensional Space for Auctions. SAINT Workshops 2005: 396-399 - 2004
- [c3]Tetsuo Hidaka, Tetsushi Morita, Tomohiko Nakamura, Morihide Oinuma, Yutaka Hirakawa:
Improvement of Visual Customer Relationship Management System. IRI 2004: 332-337
1990 – 1999
- 1994
- [c2]Hironobu Okuyama, Kenji Moriyasu, Yutaka Hirakawa:
A design method for communications software evolution. ICNP 1994: 160-167 - 1990
- [j3]Yutaka Hirakawa:
Comments on "On the Projection Method for Protocol Verification''. IEEE Trans. Software Eng. 16(3): 370-371 (1990)
1980 – 1989
- 1989
- [c1]Yutaka Hirakawa, Shuichi Uchida, Michihiro Monden:
Hypermedia as a Communication Design Software Support. UK Hypertext 1989: 244-251 - 1985
- [j2]Yutaka Hirakawa, Keiji Okada:
An automaton decomposition method for program structure simplification. Syst. Comput. Jpn. 16(5): 21-31 (1985) - 1982
- [j1]Hatsukazu Tanaka, Yutaka Hirakawa, Seiko Kaneku:
Recognition of Distorted Patterns Using the Viterbi Algorithm. IEEE Trans. Pattern Anal. Mach. Intell. 4(1): 18-25 (1982)
Coauthor Index
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