Papers

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Journal paper

1. Masaaki FUJIYOSHI, Ruifeng LI, Hitoshi KIYA,
   "A Scheme of Reversible Data Hiding for the Encryption-then-Compression System,"
   IEICE Trans. Inf. & Sys.,
   vol.E104-D, no.1, January, 2021.
   
2. April Pyone MAUNG MAUNG, Hitoshi KIYA,
   "Block-wise Image Transformation with Secret Key for Adversarially Robust Defense,"
   IEEE Trans. on Information Forensics and Security,
   pp.1--1, March, 2021.
   [DOI] [webpage]
3. Ryoya YAGUCHI, Sayaka SHIOTA, Nobutaka ONO, Hitoshi KIYA,
   "Replay Attack Detection Based on Spatial and Spectral Features of Stereo Signal,"
   IPSJ Journal of Information Processing,
   vol.29, pp.1--8, March, 2021.
   [DOI]
4. Hiroki ITO, Yuma KINOSHITA, April Pyone MAUNG MAUNG, Hitoshi KIYA,
   "Image to Perturbation: An Image Transformation Network for Generating Visually Protected Images for Privacy-Preserving Deep Neural Networks,"
   IEEE Access,
   vol.9, pp.64629--64638, April, 2021.
   [DOI] [webpage] [Publish]

International conference

1. Takayuki OSAKABE, Miki TANAKA, Yuma KINOSHITA, Hitoshi KIYA,
   "CycleGAN without checkerboard artifacts for counter-forensics of fake-image detection,"
   International Workshop on Advanced Image Technology,
   5th January, 2021.
   [Local]
2. Hiroyuki KOBAYASHI, Hitoshi KIYA,
   "Two-layer image coding compatible with JPEG XS,"
   International Workshop on Advanced Image Technology,
   5th January, 2021.
   [Local]
3. Hiroto KAI, Shinnosuke Takamichi, Sayaka SHIOTA, Hitoshi KIYA,
   "Lightweight voice anonymization based on data-driven optimization of cascaded voice modification modules,"
   IEEE Spoken Language Technology Workshop,
   22th January, 2021.
   [webpage]
4. Teruaki AKAZAWA, Yuma KINOSHITA, Hitoshi KIYA,
   "Multi-color balancing for correctly adjusting the intensity of target colors,"
   IEEE Global Conference on Life Sciences and Technologies,
   pp.8--12, 9th March, 2021.
   [Local]
5. Miki TANAKA, Hitoshi KIYA,
   "Fake-image detection with Robust Hashing,"
   IEEE Global Conference on Life Sciences and Technologies,
   9th March, 2021.
   
6. Kenta IIDA, Hitoshi KIYA,
   "Privacy-preserving Image Retrieval Scheme Allowing Mixed Use of Lossless and JPEG Compressed Images,"
   IEEE Global Conference on Life Sciences and Technologies,
   9th March, 2021.
   
7. Ryoichi HIRASAWA, Shoko IMAIZUMI, Hitoshi KIYA,
   "An MSB Prediction-Based Method with Marker Bits for Reversible Data Hiding in Encrypted Images,"
   IEEE Global Conference on Life Sciences and Technologies,
   9th March, 2021.
   
8. Kouki SEO, Yuma KINOSHITA, Hitoshi KIYA,
   "Deep Retinex Network for Estimating Illumination Colors with Self-Supervised Learning,"
   IEEE Global Conference on Life Sciences and Technologies,
   pp.1--5, 9th March, 2021.
   [Local]
9. Tatsuya CHUMAN, Hitoshi KIYA,
   "Block Scrambling Image Encryption Used in Combination with Data Augmentation for Privacy-Preserving DNNs,"
   IEEE International Conference on Consumer Electronics - Taiwan,
   pp.1--2, 16th June, 2021.
   
10. Masaki KITAYAMA, Hitoshi KIYA,
    "Generation of Gradient-Preserving Images allowing HOG Feature Extraction,"
    IEEE International Conference on Consumer Electronics - Taiwan,
    pp.1--2, 16th June, 2021.
    
11. April Pyone MAUNG MAUNG, Hitoshi KIYA,
    "Piracy-Resistant DNN Watermarking by Block-Wise Image Transformation with Secret Key,"
    ACM Workshop on Information Hiding and Multimedia Security,
    22th June, 2021.
    

Domestic conference

1. Ryoichi HIRASAWA, Shoko IMAIZUMI, Hitoshi KIYA,
   "An Extension of MSB Prediction-Based Method for Reversible Data Hiding in Encrypted Images,"
   Technical Report of IEICE,
   vol.120, no.351, pp.25--30, 28th January, 2021.
   [Local]
2. Yujin SONG , Sayaka SHIOTA, Shinnosuke Takamichi, Daisuke MURAKAMI, Tomoko MATSUI, Hiroshi SARUWATARI,
   "None,"
   IPSJ Special Interest Groups Spoken Language Processing,
   4th March, 2021.
   
3. Kotaro YAMAMURA, Ryoichi HIRASAWA, Shoko IMAIZUMI, Hitoshi KIYA,
   "An MSB Prediction-Based Method Using Linear Regression for Reversible Data Hiding in Encrypted Images,"
   Technical Report of IEICE,
   5th March, 2021.
   
4. Hiroto KAI, Shinnosuke Takamichi, Sayaka SHIOTA, Hitoshi KIYA,
   "Speech pseudonymization using cascaded voice modification for privacy protection,"
   Acoustical Society of Japan Spring Meeting,
   11th March, 2021.
   
5. Ryo IMAIZUMI, Ryo MASUMURA, Sayaka SHIOTA, Hitoshi KIYA,
   "Multitask Learning for End-to-End Japanese Dialect Speech Recognition and Dialect Identification,"
   Acoustical Society of Japan Spring Meeting,
   11th March, 2021.
   
6. Miki TANAKA, Hitoshi KIYA,
   "A universal detector of CNN-generated images based on properties of checkerboard artifacts ,"
   Technical Report of IEICE,
   20th May, 2021.
   [webpage]
7. Kotaro YAMAMURA, Shoko IMAIZUMI, Hitoshi KIYA,
   "An MSB Prediction-Based Method with Less Prediction Errors for Reversible Data Hiding in Encrypted Images ,"
   Technical Report of IEICE,
   21th May, 2021.
   [webpage]
8. ryota MOTOMURA, Shoko IMAIZUMI, Hitoshi KIYA,
   "A reversible data hiding method with high flexibility in compressive encrypted images ,"
   Technical Report of IEICE,
   21th May, 2021.
   [webpage]

Others