DNN Data Hiding for Transformer Encoder in ViT Models
Shuntaro Fukuoka, Shoko Imaizumi, and Minoru Kuribayashi,
“DNN Data Hiding for Transformer Encoder in ViT Models,”
Bull. Soc. Photogr. Imag. Japan, vol.34, no.2, pp.20-30, November 2024.
Privacy-Preserving ConvMixer Without Any Accuracy Degradation Using Compressible Encrypted Images
Haiwei Lin, Shoko Imaizumi, and Hitoshi Kiya,
“Privacy-Preserving ConvMixer Without Any Accuracy Degradation Using Compressible Encrypted Images,”
Information, vol.15, no.723, November 2024.
Encryption Method for JPEG Bitstreams for Partially Disclosing Visual Information
Mare Hirose, Shoko Imaizumi, and Hitoshi Kiya,
“Encryption Method for JPEG Bitstreams for Partially Disclosing Visual Information,”
Electronics, vol.13, no.2016, May 2024.
An Extended Method for Reversible Color Tone Control Using Data Hiding
Daichi Nakaya and Shoko Imaizumi,
“An Extended Method for Reversible Color Tone Control Using Data Hiding,”
Electronics, vol.13, no.1204, March 2024.
Security Enhancement for Reversible Data Hiding for Palette-Based Images
Noa Kikuchi and Shoko Imaizumi,
“Security Enhancement for Reversible Data Hiding for Palette-Based Images,”
Bull. Soc. Photogr. Imag. Japan, vol.34, no.1, pp.1-8, March 2024.
Reversible Data Hiding in Compressible Encrypted Images with Capacity Enhancement
Ryota Motomura, Shoko Imaizumi, and Hitoshi Kiya,
“Reversible Data Hiding in Compressible Encrypted Images with Capacity Enhancement,”
APSIPA Trans. Signal Inf. Process., vol.12, no.1, July 2023.
Effects of JPEG Compression on Vision Transformer Image Classification for Encryption-then-Compression Images
Genki Hamano, Shoko Imaizumi, and Hitoshi Kiya,
“Effects of JPEG Compression on Vision Transformer Image Classification for Encryption-then-Compression Images,”
Sensors, vol.23, no.3400, March 2023.
Security Enhancement for Reversible Data Hiding for Palette-Based Images
Daichi Nakaya and Shoko Imaizumi,
“Security Enhancement for Reversible Data Hiding for Palette-Based Images,”
Bull. Soc. Photogr. Imag. Japan, vol.33, no.1, pp.1-6, March 2023.
Best Paper Award of SPIJ Prize
Reversible Image Processing for Color Images with Flexible Control
Yuki Sugimoto and Shoko Imaizumi,
“Reversible Image Processing for Color Images with Flexible Control,”
Appl. Sci., vol.13, no.2297, February 2023.
A Reversible Data Hiding Method with Prediction-Error Expansion in Compressible Encrypted Images
Ryota Motomura, Shoko Imaizumi, and Hitoshi Kiya,
“A Reversible Data Hiding Method with Prediction-Error Expansion in Compressible Encrypted Images,”
Appl. Sci., vol.12, no.9418, September 2022.
Privacy-Preserving Semantic Segmentation Using Vision Transformer
Hitoshi Kiya, Teru Nagamori, Shoko Imaizumi, and Sayaka Shiota,
“Privacy-Preserving Semantic Segmentation Using Vision Transformer,”
J. Imaging, vol.8, no.233, August 2022.
High-Capacity Reversible Data Hiding in Encrypted Images with Flexible Restoration
Eichi Arai and Shoko Imaizumi,
“High-Capacity Reversible Data Hiding in Encrypted Images with Flexible Restoration,”
J. Imaging, vol.8, no.176, June 2022.
An Overview of Compressible and Learnable Image Transformation with Secret Key and Its Applications
Hitoshi Kiya, April Pyone Maung Maung, Yuma Kinoshita, Shoko Imaizumi, and Sayaka Shiota,
“An Overview of Compressible and Learnable Image Transformation with Secret Key and Its Applications,”
APSIPA Trans. Signal Inf. Process., vol.11, no.1, May 2022.
An Extension of Reversible Image Enhancement Processing for Saturation and Brightness Contrast
Yuki Sugimoto and Shoko Imaizumi,
“An Extension of Reversible Image Enhancement Processing for Saturation and Brightness Contrast,”
J. Imaging, vol.8, no.27, January 2022.
A Reversible Data Hiding Method in Encrypted Images for Controlling Trade-Off between Hiding Capacity and Compression Efficiency
Ryota Motomura, Shoko Imaizumi, and Hitoshi Kiya,
“A Reversible Data Hiding Method in Encrypted Images for Controlling Trade-Off between Hiding Capacity and Compression Efficiency,”
J. Imaging, vol.7, no.268, December 2021.
An Extended PEE-HS Based Method for Reversible Data Hiding of Depth Images
Minagi Ueda, Ayaka Matsuda, Ikuma Yasukawa and Shoko Imaizumi,
“An Extended PEE-HS Based Method for Reversible Data Hiding of Depth Images,”
IEEJ Trans. Electr. Inf. & Syst., vol.141, no.9, pp.1032-1038, September 2021. (in Japanese)
Reversible Data Hiding Associated with Digital Halftoning That Allows Printing with Special Color Ink by Using Single Color Layer
Minagi Ueda and Shoko Imaizumi,
“Reversible Data Hiding Associated with Digital Halftoning That Allows Printing with Special Color Ink by Using Single Color Layer,”
IEEJ Trans. Electr. Inf. & Syst., vol.141, no.2, pp.163-164, February 2021.
Application of Reversible Data Hiding for Printing with Special Color Inks to Preserve Compatibility with Normal Printing
Kotoko Hiraoka, Kensuke Fukumoto, Takashi Yamazoe, Norimichi Tsumura, Satoshi Kaneko, Wataru Arai, and Shoko Imaizumi,
“Application of Reversible Data Hiding for Printing with Special Color Inks to Preserve Compatibility with Normal Printing,”
IEEJ Trans. Electr. Inf. & Syst., vol.141, no.2, pp.155-162, February 2021.
A Reversible Data Hiding Method in Compressible Encrypted Images
Shoko Imaizumi, Yusuke Izawa, Ryoichi Hirasawa, and Hitoshi Kiya,
“A Reversible Data Hiding Method in Compressible Encrypted Images,”
IEICE Trans. Fundamentals, vol.E103-A, no.12, pp.1579-1588, December 2020.
A Block-Permutation-Based Encryption Scheme with Independent Processing of RGB Components
Shoko Imaizumi and Hitoshi Kiya,
“A Block-Permutation-Based Encryption Scheme with Independent Processing of RGB Components,”
IEICE Trans. Inf. & Syst., vol.E101-D, no.12, pp.3150-3157, December 2018.
Integrated Model of Image Protection Techniques
Anu Aryal, Shoko Imaizumi, Takahiko Horiuchi, and Hitoshi Kiya,
“Integrated Model of Image Protection Techniques,”
J. Imaging, vol.4, no.1, January 2018.
Block-Permutation-Based Encryption Scheme with Enhanced Color Scrambling
Shoko Imaizumi, Takeshi Ogasawara, and Hitoshi Kiya,
“Block-Permutation-Based Encryption Scheme with Enhanced Color Scrambling,”
Lect. Notes Comput. Sci., P. Sharma, F. Bianchi (Eds.), Springer-Verlag, vol.10269, pp.562-573, May 2017.
An Encryption-then-Compression System for Lossless Image Compression Standards
Kenta Kurihara, Shoko Imaizumi, Sayaka Shiota, and Hitoshi Kiya,
“An Encryption-then-Compression System for Lossless Image Compression Standards,”
IEICE Trans. Inf. & Syst., vol.E100-D, no.1, pp.52-56, January 2017.
Hierarchical Scrambling Method for Palette-Based Image Using Bitwise Operation
Anu Aryal, Shoko Imaizumi, and Takahiko Horiuchi,
“Hierarchical Scrambling Method for Palette-Based Image Using Bitwise Operation,”
Bull. Soc. Photogr. Imag. Japan, vol.26, no.1, pp.1-9, June 2016.
A Robust Identification Scheme for JPEG XR Images with Various Compression Ratios
Hiroyuki Kobayashi, Shoko Imaizumi, and Hitoshi Kiya,
“A Robust Identification Scheme for JPEG XR Images with Various Compression Ratios,”
Lect. Notes Comput. Sci., T. Bräunl, B. McCane, M. Rivera, and X. Yu (Eds.), Springer-Verlag, vol.9431, pp.38-50, February 2016.
Scalable Tamper Detection and Localization Scheme for JPEG2000 Codestreams
Takeshi Ogasawara, Shoko Imaizumi, and Naokazu Aoki,
“Scalable Tamper Detection and Localization Scheme for JPEG2000 Codestreams,”
Lect. Notes Comput. Sci., Y. -S. Ho, J. Sang, Y. M. Ro, J. Kim, and F. Wu (Eds.), Springer-Verlag, vol.9315, pp.340-349, December 2015.
An Encryption-then-Compression System for JPEG / Motion JPEG Standard
Kenta Kurihara, Masanori Kikuchi, Shoko Imaizumi, Sayaka Shiota, and Hitoshi Kiya,
“An Encryption-then-Compression System for JPEG / Motion JPEG Standard,”
IEICE Trans. Fundamentals, vol.E98-A, no.11, pp.2238-2245, November 2015.
Improvement of Multibit Information Embedding Algorithm for Palette-Based Images
Anu Aryal, Kazuma Motegi, Shoko Imaizumi, and Naokazu Aoki,
“Improvement of Multibit Information Embedding Algorithm for Palette-Based Images,”
Lect. Notes Comput. Sci., J. Lopez and C. J. Mitchell (Eds.), Springer-Verlag, vol.9290, pp.511-523, August 2015.
Palette-Based Image Steganography for High-Capacity Embedding
Shoko Imaizumi and Kei Ozawa,
“Palette-Based Image Steganography for High-Capacity Embedding,”
Bull. Soc. Photogr. Imag. Japan, vol.25, no.1, pp.7-11, June 2015.
Hierarchical Image Authentication Based on Reversible Data Hiding
Shoko Imaizumi and Kanichi Taniguchi,
“Hierarchical Image Authentication Based on Reversible Data Hiding,”
Bull. Soc. Photogr. Imag. Japan, vol.24, no.1, pp.1-5, June 2014.
Best Paper Award of SPIJ Prize
Multibit Embedding Algorithm for Steganography of Palette-Based Images
Shoko Imaizumi and Kei Ozawa,
“Multibit Embedding Algorithm for Steganography of Palette-Based Images,”
Lect. Notes Comput. Sci., R. Klette, M. Rivera, S. Satoh (Eds.), Springer-Verlag, vol.8333, pp.99-110, January 2014.
Multiple Level Access Control Method for Hierarchical Multimedia Content Using Low-complexity Key Generating Schemes
Shoko Imaizumi, Masaaki Fujiyoshi, and Hitoshi Kiya,
“Multiple Level Access Control Method for Hierarchical Multimedia Content Using Low-complexity Key Generating Schemes,”
ITE Journal, vol.66, no.2, pp.69-73, February 2012. (in Japanese)
A Key Derivation Scheme for Hierarchical Access Control to JPEG 2000 Coded Images
Shoko Imaizumi, Masaaki Fujiyoshi, Hitoshi Kiya, Naokazu Aoki, and Hiroyuki Kobayashi,
“A Key Derivation Scheme for Hierarchical Access Control to JPEG 2000 Coded Images,”
Lect. Notes Comput. Sci., Y. -S. Ho (Ed.), Springer-Verlag, vol.7088, pp.180-191, January 2012.
A Key Generating Method Using Recursive Hash Chains and Its Applications for Multi-Dimensionally Hierarchical Access Control
Shoko Imaizumi, Masaaki Fujiyoshi, and Hitoshi Kiya,
“A Key Generating Method Using Recursive Hash Chains and Its Applications for Multi-Dimensionally Hierarchical Access Control,”
ITE Journal, vol.65, no.2, pp.193-202, February 2011. (in Japanese)
Best Paper Award of ITE Niwa-Takayanagi Prize
An Efficient Access Control Method Based on One-Way Hash Functions for Digital Videos
Shoko Imaizumi, Yoshito Abe, Masaaki Fujiyoshi, and Hitoshi Kiya,
“An Efficient Access Control Method Based on One-Way Hash Functions for Digital Videos,”
ITE Journal, vol.64, no.11, pp.1621-1627, November 2010. (in Japanese)
An efficient access control method for composite multimedia content
Shoko Imaizumi, Masaaki Fujiyoshi, and Hitoshi Kiya,
“An efficient access control method for composite multimedia content,”
IEICE Electronics Express, vol.7, no.20, pp.1534-1538, October 2010.
Encryption of Composite Multimedia Contents for Access Control
Masaaki Fujiyoshi, Shoko Imaizumi, and Hitoshi Kiya,
“Encryption of Composite Multimedia Contents for Access Control,”
IEICE Trans. Fundamentals, vol.E90-A, no.3, pp.590-596, March 2007.
Partial-Scrambling of JPEG2000 Images without Generating Marker Codes
Hitoshi Kiya, Shoko Imaizumi, and Osamu Watanabe,
“Partial-Scrambling of JPEG2000 Images without Generating Marker Codes,”
IEICE Trans., vol.J86-D-II, no.11, pp.1628-1636, November 2003. (in Japanese)