Papers

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Jounal paper
  1. Takayuki NAKACHI, Yukihiro Bandoh, Hitoshi KIYA,
    "Secure Overcomplete Dictionary Learning for Sparse Representation,"
    IEICE Trans. Inf. & Sys.,
    vol.E103-D, no.1, pp.50--58, January, 2020.
    [Local]
  2. Kenta IIDA, Hitoshi KIYA,
    "Image Identification of Encrypted JPEG Images for Privacy-preserving Photo Sharing Services,"
    IEICE Trans. Inf. & Sys.,
    vol.E103-D, no.1, pp.25--32, January, 2020.
    [Local]
  3. Ryota KAMINISHI, Haruna MIYAMOTO, Sayaka SHIOTA, Hitoshi KIYA,
    "Blind bandwidth extension with a non-linear function and its evaluation on automatic speaker verification,"
    IEICE Trans. Inf. & Sys.,
    vol.E103-D, no.1, pp.42--49, January, 2020.
    [Local]
  4. Yuma KINOSHITA, Hitoshi KIYA,
    "Hue-Correction Scheme Based on Constant-Hue Plane for Deep-Learning-Based Color-Image Enhancement,"
    IEEE Access,
    vol.8, no.1, pp.9540--9550, January, 2020.
    [DOI]
  5. Takayuki NAKACHI, Hitoshi KIYA,
    "Secure OMP Based Pattern Recognition that Supports Image Compression,"
    Signal & Image Processing: An International Journal,
    vol.11, no.2, pp.23--39, April, 2020.
    [Publish] [Local]
  6. Takayuki NAKACHI, Hitoshi KIYA,
    "Secure OMP Computation Maintaining Sparse Representations and Its Application to EtC Systems,"
    IEICE Trans. Inf. & Sys.,
    vol.E103-D, no.9, September, 2020.
  7. Kenta IIDA, Hitoshi KIYA,
    "Privacy-Preserving Content-based Image Retrieval Using Compressible Encrypted Images,"
    IEEE Access,
    vol.8, November, 2020.
    [DOI] [Publish]
  8. Yukihiro Bandoh, Takayuki NAKACHI, Hitoshi KIYA,
    "Distributed secure sparse modeling based on random unitary transform,"
    IEEE Access,
    pp.1--11, November, 2020.
    [DOI]
  9. Yuma KINOSHITA, Hitoshi KIYA,
    "Hue-Correction Scheme Considering CIEDE2000 for Color-Image Enhancement Including Deep-Learning-Based Algorithms,"
    APSIPA Trans. Signal and Information Processing,
    vol.9, November, 2020.
  10. Ayana KAWAMURA, Yuma KINOSHITA, Takayuki NAKACHI, Sayaka SHIOTA, Hitoshi KIYA,
    "A Privacy-Preserving Machine Learning Scheme Using EtC Images,"
    IEICE Trans. Fundamentals,
    vol.E103-A, no.12, pp.1571--1578, December, 2020.
    [webpage] [Local]
  11. Shoko IMAIZUMI, Yusuke Izawa, Ryoichi HIRASAWA, Hitoshi KIYA,
    "A Reversible Data Hiding Method in Compressible Encrypted Images,"
    IEICE Trans. Fundamentals,
    vol.E103-A, no.12, pp.1579--1588, December, 2020.
    [webpage] [Local]
  12. Takayuki NAKACHI, Hitoshi KIYA,
    "L0 Norm Optimization in Scrambled Sparse Representation Domain and Its Application to EtC System,"
    IEICE Trans. Fundamentals,
    vol.E103-A, no.12, pp.1589--1598, December, 2020.
    [webpage] [Local]
  13. Kouki SEO, Chihiro GO, Yuma KINOSHITA, Hitoshi KIYA,
    "Hue-Correction Scheme Considering Non-Linear Camera Response for Multi-Exposure Image Fusion,"
    IEICE Trans. Fundamentals,
    vol.E103-A, no.12, pp.1562--1570, December, 2020.
    [webpage] [Local]
International conference
  1. Ayana KAWAMURA, Yuma KINOSHITA, Hitoshi KIYA,
    "Privacy-Preserving Machine Learning Using EtC Images,"
    International Workshop on Advanced Image Technology,
    5th January, 2020.
  2. Takayuki NAKACHI, Hitoshi KIYA,
    "PRIVACY-PRESERVING PATTERN RECOGNITION WITH IMAGE COMPRESSION,"
    International Conference on Signal, Image Processing and Pattern Recognition,
    21th March, 2020.
  3. Takayuki NAKACHI, Yitu WANG, Hitoshi KIYA,
    "PRIVACY-PRESERVING PATTERN RECOGNITION USING ENCRYPTED SPARSE REPRESENTATIONS IN L0 NORM MINIMIZATION,"
    IEEE International Conference on Acoustics, Speech and Signal Processing,
    5th May, 2020.
  4. Yukihiro Bandoh, Takayuki NAKACHI, Hitoshi KIYA,
    "Sparse modeling on distributed encryption data,"
    IEEE International Conference on Acoustics, Speech and Signal Processing,
    5th May, 2020.
  5. Yuma KINOSHITA, Hitoshi KIYA,
    "FIXED SMOOTH CONVOLUTIONAL LAYER FOR AVOIDING CHECKERBOARD ARTIFACTS IN CNNS,"
    IEEE International Conference on Acoustics, Speech and Signal Processing,
    pp.3712--3716, 6th May, 2020.
    [Local]
  6. Haruna MIYAMOTO, Sayaka SHIOTA, Hitoshi KIYA,
    "Application of Bandwidth Extension with No Learning to Data Augmentation for Speaker Verification,"
    The Speaker and Language Recognition Workshop Odyssey,
    pp.446--450, 18th May, 2020.
    [DOI] [webpage] [Publish]
  7. Kenta IIDA, Hitoshi KIYA,
    "A Content-based Image Retrieval Scheme Using Compressible Encrypted Images,"
    EURASIP European Signal Processing Conference,
    24th August, 2020.
  8. Warit SIRICHOTEDUMRONG, Hitoshi KIYA,
    "A GAN-Based Image Transformation Scheme for Privacy-Preserving Deep Neural Networks,"
    EURASIP European Signal Processing Conference,
    24th August, 2020.
  9. Kouki SEO, Chihiro GO, Yuma KINOSHITA, Hitoshi KIYA,
    "Hue Correction Scheme for Multi-Exposure Image Fusion Considering Hue Distortion in Input Images,"
    IEEE International Conference on Consumer Electronics - Taiwan,
    28th September, 2020.
    [Local]
  10. Weihang ZHANG, Yuma KINOSHITA, Hitoshi KIYA,
    "Image-Enhancement-Based Data Augmentation for Improving Deep Learning in Image Classification Problem,"
    IEEE International Conference on Consumer Electronics - Taiwan,
    28th September, 2020.
    [Local]
  11. Masaki KITAYAMA, Hitoshi KIYA, Nobutaka ONO,
    "Difficulty in estimating visual information from randomly sampled images,"
    IEEE Global Conference on Consumer Electronics,
    13th October, 2020.
    [webpage]
  12. Ryo IMAIZUMI, Ryo MASUMURA, Sayaka SHIOTA, Hitoshi KIYA,
    "Sequence-To-One Neural Networks for Japanese Dialect Speech Classification,"
    IEEE Global Conference on Consumer Electronics,
    pp.474--476, 14th October, 2020.
    [Local]
  13. Takayuki OSAKABE, Yuma KINOSHITA, Hitoshi KIYA,
    "On the influence of using quantized images on machine learning algorithms,"
    IEEE Global Conference on Consumer Electronics,
    pp.101--104, 14th October, 2020.
    [Local]
  14. Hiroki ITO, Yuma KINOSHITA, Hitoshi KIYA,
    "Image Transformation Network for Privacy-Preserving Deep Neural Networks and Its Security Evaluation,"
    IEEE Global Conference on Consumer Electronics,
    pp.537--540, 14th October, 2020.
    [Local]
  15. Hiroyuki KOBAYASHI, Hitoshi KIYA,
    "Extension of JPEG XS for Two-Layer Lossless Coding,"
    IEEE Global Conference on Consumer Electronics,
    14th October, 2020.
  16. April Pyone MAUNG MAUNG, Hitoshi KIYA,
    "Training DNN Model with Secret Key for Model Protection,"
    IEEE Global Conference on Consumer Electronics,
    pp.533--536, 16th October, 2020.
    [Local]
  17. April Pyone MAUNG MAUNG, Hitoshi KIYA,
    "Encryption Inspired Adversarial Defense for Visual Classification,"
    IEEE International Conference on Image Processing,
    pp.1681--1685, 26th October, 2020.
    [Local]
  18. April Pyone MAUNG MAUNG, Hitoshi KIYA,
    "An Extension of Encryption-Inspired Adversarial Defense with Secret Keys against Adversarial Examples,"
    APSIPA Annual Summit and Conference,
    7th December, 2020.
  19. Hiroki ITO, Yuma KINOSHITA, Hitoshi KIYA,
    "A Framework for Transformation Network Training in Coordination with Semi-trusted Cloud Provider for Privacy-Preserving Deep Neural Networks,"
    APSIPA Annual Summit and Conference,
    8th December, 2020.
  20. Ryo IMAIZUMI, Ryo MASUMURA, Sayaka SHIOTA, Hitoshi KIYA,
    "Dialect-Aware Modeling for End-to-End Japanese Dialect Speech Recognition,"
    APSIPA Annual Summit and Conference,
    pp.297--301, 8th December, 2020.
    [Local]
  21. Yuma KINOSHITA, Hitoshi KIYA,
    "Checkerboard-Artifact-Free Image-Enhancement Network Considering Local and Global Features,"
    APSIPA Annual Summit and Conference,
    8th December, 2020.
Domestic conference
  1. Haruna MIYAMOTO, Sayaka SHIOTA, Hitoshi KIYA,
    "Data augmentation using non-learning-based bandwidth extension for automatic speaker verification based on deep-learning,"
    IPSJ Special Interest Groups Spoken Language Processing,
    13th February, 2020.
  2. Hiroki ITO, Yuma KINOSHITA, Hitoshi KIYA,
    "An Image Transformation Network for Privacy-Preserving Deep Neural Networks,"
    Technical Report of IEICE,
    vol.119, no.422, no.IE2019-75, pp.195--200, 27th February, 2020.
    [webpage] [Local]
  3. Takayuki NAKACHI, Yitu WANG, Hitoshi KIYA,
    "A Pattern Recognition Method Using Secure Sparse Representations in L0 Norm Minimization ,"
    Technical Report of IEICE,
    2nd March, 2020.
  4. Hiroto KAI, Sayaka SHIOTA, Hitoshi KIYA,
    "Vulnerability investigation of speaker verification against black-box adversarial attacks,"
    Speech Committee,
    2nd March, 2020.
    [Local]
  5. Ryo IMAIZUMI, Ryo MASUMURA, Sayaka SHIOTA, Hitoshi KIYA,
    "Japanese dialect speech classification using sequence-to-one neural networks,"
    Speech Committee,
    2nd March, 2020.
    [webpage] [Local]
  6. Yukihiro Bandoh, Takayuki NAKACHI, Hitoshi KIYA,
    "Sparse modeling on distributed encryption signal with random unitary transform,"
    Forum on Data Engineering and Information Management,
    3rd March, 2020.
    [Local]
  7. Ryoichi HIRASAWA, Shoko IMAIZUMI, Hitoshi KIYA,
    "Extended EtC images for flexible data hiding and extracting ,"
    Technical Report of IEICE,
    5th March, 2020.
  8. Ruifeng LI, Masaaki FUJIYOSHI, Hitoshi KIYA, Yasufumi TAKAMA,
    "A Reversible Data Hiding Scheme for the EtC System ,"
    Technical Report of IEICE,
    5th March, 2020.
  9. Kazuaki TAKAHASHI, Masaaki FUJIYOSHI, Wannida SAE-TANG, Hitoshi KIYA,
    "An Improvement on Data Hiding in the Copyright- and Privacy-Protected Image Trading System ,"
    Technical Report of IEICE,
    5th March, 2020.
  10. Yukihiro Bandoh, Takayuki NAKACHI, Hitoshi KIYA,
    "LASSO analysis for distributed encryption signal with random unitary transform,"
    Technical Report of IEICE,
    6th March, 2020.
    [Local]
  11. Yuma KINOSHITA, Hitoshi KIYA,
    "Luminance-Independent Hue Image Generation Method Based on CIELAB Color Space,"
    Technical Report of IEICE,
    vol.120, no.51, no.SIS2020-1, pp.1--6, 3rd June, 2020.
    [webpage] [Local]
  12. Hiroyuki KOBAYASHI, Hitoshi KIYA,
    "Two-layer lossless image coding compatible with JPEG XS,"
    Technical Report of IEICE,
    4th June, 2020.
    [webpage]
  13. Hiroto KAI, Shinnosuke Takamichi, Sayaka SHIOTA, Hitoshi KIYA,
    "Black-box voice modification for voice privacy,"
    Acoustical Society of Japan Autumn Meeting,
    no.2-2-5, 10th September, 2020.
    [Local]
  14. Ryo IMAIZUMI, Ryo MASUMURA, Sayaka SHIOTA, Hitoshi KIYA,
    "Using Dialect Label as Auxiliary Feature for End-to-End Japanese Dialect Speech Recognition,"
    Acoustical Society of Japan Autumn Meeting,
    no.3-2-15, 11th September, 2020.
    [Local]
  15. Miki TANAKA, Hitoshi KIYA,
    "Robustness Evaluation of Detectinon methods for Image manipulation with GANs,"
    Technical Report of IEICE,
    vol.120, no.176, no.SIS2020-14, pp.23--28, 1st October, 2020.
    [webpage] [Local]
  16. Teruaki AKAZAWA, Yuma KINOSHITA, Hitoshi KIYA,
    "Target-color correction method based on multi-color balance,"
    Technical Report of IEICE,
    vol.120, no.176, no.SIS2020-12, pp.11--16, 1st October, 2020.
    [webpage] [Local]
  17. Masaki KITAYAMA, Nobutaka ONO, Hitoshi KIYA,
    "Evaluation of linear dimensionality reduction methods considering visual information protection for privacy-preserving machine learning,"
    Technical Report of IEICE,
    vol.120, no.176, no.SIS2020-13 , pp.17--22, 1st October, 2020.
    [webpage] [Local]
Others