Presentation 2019-12-06
A Scheme of Digital Copyright Management System Based on Blockchain and Digital Watermarking
Zhaoxiong Meng, Tetsuya Morizumi, Sumiko Miyata, Hirotsugu Kinoshita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this study, in order to search for a new digital content copyright management method that achieves both safety and convenience, we aim to improve the digital watermarking technology that embeds evidence information using content redundancy. In our previous study, we found three requirements for digital watermarking. The first is that to prevent watermark information of an image from being diverted to other images, this information must be generated based on the original image. The second is that after the original image is modified/edited, it should still be able to be used the same as the original image. The third is that multiple digital watermarks should be stored and managed without relying on trusted third parties. To meet these requirements, we proposed a digital-copyright-management system based on perceptual hashing and blockchain. However, because we used conventional perceptual hashing in that study, we could not draw sufficient conclusions about the first and second requirements. In this current study, to obtain a stable message digest, we propose a method of improving perceptual hashing based on machine learning and intermediate layer of convolutional neural network (CNN). These can be said to be next-generation technologies applicable to objective image quality evaluation methods and image retrieval systems.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Perceptual HashingMachine LearningBlockchainDigital WatermarkingDigital Copyright Management
Paper # SITE2019-83
Date of Issue 2019-11-29 (SITE)

Conference Information
Committee SITE
Conference Date 2019/12/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Tetsuya Morizumi(Kanagawa Univ.)
Vice Chair Masaru Ogawa(Kobe Gakuin Univ.) / Takushi Otani(Kibi International Univ.)
Secretary Masaru Ogawa(Toyo Eiwa Univ.) / Takushi Otani(KDDI Research)
Assistant Nobuyuki Yoshinaga(Yamaguchi Pref Univ.) / Daisuke Suzuki(Hokuriku Univ.)

Paper Information
Registration To Technical Committee on Social Implications of Technology and Information Ethics
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Scheme of Digital Copyright Management System Based on Blockchain and Digital Watermarking
Sub Title (in English) Research on Improvement Method of Perceptual Hashing based on Machine Learning
Keyword(1) Perceptual HashingMachine LearningBlockchainDigital WatermarkingDigital Copyright Management
1st Author's Name Zhaoxiong Meng
1st Author's Affiliation Kanagawa University(KU)
2nd Author's Name Tetsuya Morizumi
2nd Author's Affiliation Kanagawa University(KU)
3rd Author's Name Sumiko Miyata
3rd Author's Affiliation Shibaura Institute of Technology(SIT)
4th Author's Name Hirotsugu Kinoshita
4th Author's Affiliation Kanagawa University(KU)
Date 2019-12-06
Paper # SITE2019-83
Volume (vol) vol.119
Number (no) SITE-329
Page pp.pp.21-27(SITE),
#Pages 7
Date of Issue 2019-11-29 (SITE)