Lossless JPEG2000 coding for lossy images and its applications. - Osamu Watanabe 002; Hitoshi Kiya (EUSIPCO, 2002)

Partial-scrambling of images encoded using JPEG2000 without generating marker codes. - Hitoshi Kiya; Shoko Imaizumi; Osamu Watanabe 002 (ICIP (3), 2003)

ROI-based scalability for progressive transmission in JPEG2000 coding. - Osamu Watanabe 002; Hitoshi Kiya (ISCAS (2), 2003)

An Extension of ROI-Based Scalability for Progressive Transmission in JPEG2000 Coding. - Osamu Watanabe 002; Hitoshi Kiya (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

A fast image-scramble method using public-key encryption allowing backward compatibility with jpeg2000. - Osamu Watanabe 002; Akiko Nakazaki; Hitoshi Kiya (ICIP, 2004)

Generalized hierarchical encryption of JPEG 2000 codestreams for access control. - Shoko Imaizumi; Osamu Watanabe 002; Masaaki Fujiyoshi; Hitoshi Kiya (ICIP (2), 2005)

A scalable encryption method allowing backward compatibility with JPEG2000 images. - Osamu Watanabe 002; Akiko Nakazaki; Hitoshi Kiya (ISCAS (6), 2005)

A Method of Guaranteeing Image-Quality for Quantization-Based Watermarking Using a Nonorthogonal Transformation. - Masaaki Fujiyoshi; Osamu Watanabe 002; Hitoshi Kiya (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Hierarchical Encryption of Multimedia Contents for Access Control. - Masaaki Fujiyoshi; Wataru Saitou; Osamu Watanabe 002; Hitoshi Kiya (ICIP, 2006)

Analysis of Dynamics of Cultured Neuronal Networks Using I&F Model. - Akio Kawana; Shinya Tsuzuki; Osamu Watanabe 002 (ICONIP (1), 2006)

A new class of lifting wavelet transform for guaranteeing losslessness of specific signals. - Hitoshi Kiya; Masahiro Iwahashi; Osamu Watanabe 002 (ICASSP, 2008)

A new structure of lifting wavelet for reducing rounding error. - Hitoshi Kiya; Masahiro Iwahashi; Osamu Watanabe 002 (ISCAS, 2008)

Identification of JPEG 2000 images in encrypted domain for digital cinema. - Osamu Watanabe 002; Tomonori Iida; Takahiro Fukuhara; Hitoshi Kiya (ICIP, 2009)

Fast identification of JPEG 2000 images for digital cinema profiles. - Osamu Watanabe 002; Takahiro Fukuhara; Hitoshi Kiya (ICASSP, 2011)

Hash based identification of JPEG 2000 images with different coding parameters. - Osamu Watanabe 002; Takahiro Fukuhara; Hitoshi Kiya (ICASSP, 2012)

Hash-based identification of JPEG 2000 images in encrypted domain. - Toshiyuki Dobashi; Osamu Watanabe 002; Takahiro Fukuhara; Hitoshi Kiya (ISPACS, 2012)

Codestream-Based Identification of JPEG 2000 Images with Different Coding Parameters. - Osamu Watanabe 002; Takahiro Fukuhara; Hitoshi Kiya (IEICE Trans. Inf. Syst., 2012)

An Encryption-then-Compression system for JPEG 2000 standard. - Osamu Watanabe 002; Akira Uchida; Takahiro Fukuhara; Hitoshi Kiya (ICASSP, 2015)

A perceptual encryption scheme for Motion JPEG 2000 standard. - Osamu Watanabe 002; Takahiro Fukuhara; Hitoshi Kiya (ISCIT, 2015)

An encryption-then-compression system for JPEG XR standard. - Kenta Kurihara; Osamu Watanabe 002; Hitoshi Kiya (BMSB, 2016)

A structure of JPEG XT encoder considering effect of quantization error. - Osamu Watanabe 002; Ryo Suzuki; Hitoshi Kiya (ISCAS, 2016)

Lossless Two-Layer Coding using Histogram Packing Technique for HDR Images. - Osamu Watanabe 002; Hiroyuki Kobayashi; Hitoshi Kiya (ISCAS, 2018)

Two-layer Lossless HDR Coding considering Histogram Sparseness with Backward Compatibility to JPEG. - Osamu Watanabe 002; Hiroyuki Kobayashi; Hitoshi Kiya (PCS, 2018)

Two-Layer Lossless HDR Coding Using Histogram Packing Technique with Backward Compatibility to JPEG. - Osamu Watanabe 002; Hiroyuki Kobayashi; Hitoshi Kiya (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)

Two-Layer Near-Lossless HDR Coding with Backward Compatibility to JPEG. - Hiroyuki Kobayashi; Osamu Watanabe 002; Hitoshi Kiya (ICIP, 2019)

Two-Layer Near-Lossless HDR Coding Using Zero-Skip Quantization with Backward Compatibility to JPEG. - Hiroyuki Kobayashi; Osamu Watanabe 002; Hitoshi Kiya (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2019)