Akira SHIOZAKI


Extended Single Parity Check Product Codes that Achieve Close-to-Capacity Performance in High Coding Rate
Akira SHIOZAKI Masashi KISHIMOTO Genmon MARUOKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/09/01
Vol. E93-A  No. 9  pp. 1693-1696
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
error-correctionparity check codesproduct codesbelief propagation decodingsoft-decision decoding
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Reversible Watermarking Method for JPEG Images
Akira SHIOZAKI Motoi IWATA Akio OGIHARA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/07/01
Vol. E91-D  No. 7  pp. 2068-2071
Type of Manuscript:  LETTER
Category: Application Information Security
Keyword: 
watermarkreversible watermarkingJPEG image
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Correction Method of Nonlinearity Due to Logarithm Operation for X-Ray CT Projection Data with Noise in Photon-Starved State
Shin-ichiro IWAMOTO Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/10/01
Vol. E90-D  No. 10  pp. 1697-1705
Type of Manuscript:  PAPER
Category: Biological Engineering
Keyword: 
computed tomographycorrection of nonlinearityCT numbernoise distributionstreak artifacts
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Correlation-Based Video Watermarking Method Using Inter-Frame Similarity
Motoo YAMAMOTO Akira SHIOZAKI Motoi IWATA Akio OGIHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/01/01
Vol. E89-A  No. 1  pp. 186-193
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Information Hiding
Keyword: 
digital video watermarkcopyright protectioncorrelation-based watermarkingMPEGStirMark
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Discrimination Method of Synthetic Speech Using Pitch Frequency against Synthetic Speech Falsification
Akio OGIHARA Hitoshi UNNO Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/01/01
Vol. E88-A  No. 1  pp. 280-286
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Biometrics
Keyword: 
speaker verificationbiometricssynthetic speechpitch frequency
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Digital Steganography Utilizing Features of JPEG Images
Motoi IWATA Kyosuke MIYAKE Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/04/01
Vol. E87-A  No. 4  pp. 929-936
Type of Manuscript:  PAPER
Category: Image
Keyword: 
steganographyJPEG compressionDCT
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Digital Watermarking Method to Embed Index Data into JPEG Images
Motoi IWATA Kyosuke MIYAKE Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/10/01
Vol. E85-A  No. 10  pp. 2267-2271
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Information Security
Keyword: 
index dataJPEG compressiondigital watermarksDCT
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Error Performance of Codes to which Belief Propagation Decoding Algorithm is Applicable
Akira SHIOZAKI Hideki FUKUHARA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/05/01
Vol. E85-A  No. 5  pp. 1183-1186
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
error correctionnumerical codessoft-decision decodingbelief propagation
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Index Data Embedding Method Utilizing Quantitative Relation of Wavelet Coefficients
Motoi IWATA Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/10/01
Vol. E84-A  No. 10  pp. 2508-2513
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Information Security
Keyword: 
wavelet transformdigital watermarkindex dataimage signal
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Watermarking Method for Embedding Index Data into Images Utilizing Features of Wavelet Transform
Motoi IWATA Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7  pp. 1772-1778
Type of Manuscript:  PAPER
Category: Image
Keyword: 
wavelet transformdigital watermarkindex dataimage signaldata hiding
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A Digital Image Watermarking Scheme Withstanding Malicious Attacks
Akira SHIOZAKI Jiro TANIMOTO Motoi IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/10/25
Vol. E83-A  No. 10  pp. 2015-2022
Type of Manuscript:  PAPER
Category: Information Security
Keyword: 
watermarkcopyright protectiondigital imagesID informationStirMark
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A Study on Performances of Soft-Decision Decoding Algorithm Based on Energy Minimization Principle
Akira SHIOZAKI Yasushi NOGAWA Tomokazu SATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/10/25
Vol. E82-A  No. 10  pp. 2194-2198
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
error-correcting-codessoft-decision decodingdecoding complexityenergy minimization principle
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Improvement to a Method of Embedding Robust Watermarks into Digital Color Images
Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/05/25
Vol. E82-A  No. 5  pp. 861-864
Type of Manuscript:  LETTER
Category: Information Security
Keyword: 
watermarkingcopyright protection
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A Method of Embedding Robust Watermarks into Digital Color Images
Ken-ichi HASHIDA Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 2133-2137
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Security
Keyword: 
watermarkingcopyright protectioncolor imagesID information
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On Reducing Complexity of a Soft-Decision Decoding Algorithm for Cyclic Codes Based on Energy Minimization Principle
Akira SHIOZAKI Kazutaka AOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/25
Vol. E81-A  No. 10  pp. 1998-2004
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
error-correcting-codeserror-controldecoding algorithmsoft-decision decodingenergy minimization principle
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Decoded Error Characteristics of Two-Pass APP Decoding
Akira SHIOZAKI Yukinori KANAYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/09/25
Vol. E79-A  No. 9  pp. 1450-1452
Type of Manuscript:  Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
error-correctionsoft-decision decodingthreshold decodingAPP decoding
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Adaptive Type- Hybrid ARQ System Using BCH Codes
Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1992/09/25
Vol. E75-A  No. 9  pp. 1071-1075
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
adaptive type- hybrid ARQerror controltransmission controlchannel codingthroughput analysis
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Automatic Repeat Request/Adaptive froward Error Correction System for Satellite Communications
Akira SHIOZAKI Kiyoshi OKUNO Shin-ichi SATOH Tetsuro SEGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1989/05/25
Vol. E72-E  No. 5  pp. 565-566
Type of Manuscript:  LETTER
Category: Communication Theory
Keyword: 
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A New Class of Orchard Codes with Double Bit Error and Single Byte Error Correcting Capability
Akira SHIOZAKI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/12/25
Vol. E69-E  No. 12  pp. 1330-1333
Type of Manuscript:  PAPER
Category: Source Encoding and Communication Terminals
Keyword: 
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