• Title/Summary/Keyword: Digital Copyright Protection

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Copyright Protection using Encryption of DCT Coefficients and Motion Vector in Video Codec of Mobile Device (모바일 기기내의 비디오 코덱에서 DCT 계수와 움직임 벡터의 암호화를 이용한 저작권 보호)

  • Kwon, Goo Rak;Kim, Young Ro
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.4 no.1
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    • pp.41-46
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    • 2008
  • With widespread use of the Internet and improvements in streaming media and compression technology, digital music, video, and image can be distributed instantaneously across the Internet to end-users. However, most conventional Digital Right Management are often not secure and fast enough to process the vast amount of data generated by the multimedia applications to meet the real-time constraints. In this paper, we propose the copyright protection using encryption of DCT coefficients and motion vector in MPEG-4 video codec of mobile device. This paper presents a new Digital Rights Management that modifies the Motion Vector of Macroblock for mobile device. Experimental results indicate that the proposed DRM can not only achieve very low cost of the encryption but also enable separable authentication to individual mobile devices such as Portable Multimedia Player and Personal Digital Assistants. The performance of the proposed methods have low complexity and low increase of bit rate in overhead.

Design of DID-based Verification Protocol for Strengthening Copyright Holders' Sovereignty (저작권자의 주권 강화를 위한 DID 기반 검증 프로토콜 설계)

  • Kim, Ho-Yoon;Shin, Seung-Soo
    • Journal of Industrial Convergence
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    • v.20 no.9
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    • pp.47-58
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    • 2022
  • Digital content is difficult to distinguish between the original and the replica due to its nature. For this reason, NFT technology using blockchain technology is attracting attention because it can guarantee the proof and scarcity of the original digital content. However, the NFT buyer does not own the copyright to the digital content, but the ownership. In particular, since the minting process of issuing NFTs is possible for anyone, there is a copyright threat to the copyright holder. In this study, we propose a verification protocol based on DID for the process of issuing and transacting NFTs for copyright protection of copyright holders' digital contents. As a research method, the problems of research cases related to digital contents were analyzed and the safety was comparatively analyzed. NFT issuance can only be issued by copyright holders whose identity has been verified through DID, and only users who have completed authentication can participate in the transaction to prevent indiscriminate theft and use of digital content and form a safe and transparent transaction market.

A Study on the Legal Protection of Science and Technology Databases on the Copyright Law and Online Digital Contents Industry Development Law (저작권법과 온라인 디지털 콘텐츠 산업발전법에 의한 과학기술 데이터베이스 법적보호에 관한 연구)

  • Jang, Tae-Jong;Yoo, Jae-Young;Jeong, Eui-Seob
    • Journal of Information Management
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    • v.36 no.2
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    • pp.153-172
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    • 2005
  • Currently the copyright law and the online digital contents industry development law aim to protect the producers of databases and digital contents. A report on databases in the United States describes that an additional protection of databases is needed as databases get more significant in terms of science and economy and become a key factor on Internet. At this moment, Korea does not recognize the importance of databases of science and technology when we look into any public or civil organizations. Accordingly this paper deals in depth with overall issues surrounding the regal protection of science and technology databases, key contents for science and technology databases protection by current laws, and additional protection problems. Considering that the industry of science and technology databases plays a pivotal role in the securement of national competitiveness, the preparation of legal measures to properly protect databases as one of the policies for the continuing development of databases should not be overlooked.

A Design and Implementation of DRM System by Applying System Authentication Method (시스템 인증기법을 적용한 DRM 시스템 설계 및 구현)

  • Jang, Eun Gyeom;Lee, Bum Suk
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.5 no.2
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    • pp.177-184
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    • 2009
  • The digital contents distribution system via network provides comfortability, usability, and diversified functions to content's users. However, for the characteristic of easy access of digital contents, the copyright infringements and indiscreet contents distribution are realized in this days. In other words, any users with the authentication key can access to copyright contents with any restrictions. To solve this problems, we proposed a user authentication mechanism which prevent indiscreet access to the digital content by using user system information. Also, to provide safe distribution of digital content, we used user's unique content authentication key.

WAVELET-BASED DIGITAL WATERMARKING USING HUMAN VISUAL SYSTEM FOR COPYRIGHT PROTECTION

  • Sombun, Anuwat;Pinngern, Quen;Kimpan, Chom
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.800-803
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    • 2004
  • This paper presents a wavelet-based digital watermarking technique for still images. The digital watermarking considering human visual system (HVS) to increase the robustness and perceptual invisibility of digital watermark. The watermarking embedding is modified discrete wavelet transform (DWT) coefficients of the subbands of the images. The human visual system is number of factors that effect the noise sensitivity of human eyes that is considered to increase the robustness and perceptual invisibility of digital watermark. The watermark detection is blind watermark ( original image is not required ). Experimental results successful against attacks by image processing such as add noise, cropping, filtering, JPEG and JPEG2000 compression.

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A study on the protection of on-line digital contents industry -focused on on-line digital contents industry development act- (온라인디지털콘텐츠산업의 보호에 관한 연구 -온라인디지털콘텐츠산업발전법을 중십으로-)

  • Kang, Sung-Ju
    • The Journal of Information Technology
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    • v.7 no.2
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    • pp.55-67
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    • 2004
  • The copyright law only protects the creative representation of works because it conditionally requires a creativity aspect of works. Due to the lack of protection regime in existing laws and the systems, the online digital contents industrial development act has been enacted to alternatively protect the digital contents providers based on a principle of preventive of illegal competition.

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Digital contents copyright protection and management system by MPEG-4 IPMP (MPEG-4 IPMP에 따른 디지털 콘텐츠 저작권 보호 및 관리 시스템)

  • 박철민;임산송;김창수;김광용;정회경
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.10a
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    • pp.512-515
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    • 2003
  • MPEG-4 has mediocrity Standing encoding personality to process multimedia data including audio and video etc in the Internet and computer. It can use extensively without being limited to one territory of communication, computer, broadcasting, Mobile etc. Like this, according as digital contents do fetters to MPEG-4 is circulated, copyright problem was risen. So, people had a lot of interests to protect and manage copyright. Hereupon, MPEG of the ISO/IEC established IPMP(Intellectual Property Management and Protection) standard, and supplements and corrects continuously standard. Therefore, existing system does fetters to MPEG-4 need system that process IPMP information. Hereupon, in this paper, designed system module that is processed by IPMP extension standard that progress now, and embodied copyright protection and management system that user can insert and update IPMP information efficiently within whole or specification part of MPEG-4 digital contents.

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Digital Watermarking System for Copyright Protection of Web Image (웹 이미지의 저작권 보호를 위한 디지털 워터마킹 시스템)

  • Cho, Jung-Won;Jeong, Seung-Do;Rhee, Yoon-Jung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.12
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    • pp.3682-3687
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    • 2009
  • In this paper, we design and implement watermarking system which create, insert and detect watermark comprised of number or logo to protect copyright and to prevent illegal plagiarism through inserting copyrighting information of owner into the original image. In the proposed system, the number or logo as watermark is selectively inserted according to characteristics of the original contents or requirement of copyrighter. The system also has convenient user interface which general administrator who hasn't expert knowledge for the protection of copyright uses easily. Ownership and copyright protection using digital watermarking technology intensifies creating volition of clients who want to create contents such as cultural contents, Thus, we can expect increasing requests for creating contents such as cultural contents.

A Study on the Watermarketing of Keyframe-Based for copyright Protection of video (동영상의 저작권 보호를 위한 키 프레임 기반의 워터마킹에 관한 연구)

  • Kim, Dan-Hwan;Oh, Moo-Song
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.9 no.1
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    • pp.102-107
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    • 2005
  • With the advancement which development and information communication of the computer is quick about lower with multimedia technical diffusion of network base the necessity the use of the digital image technique which is various regarding the protection of sharp increasing multimedia contents raised its head in the social whole. the copyright protection against a multimedia data hazard the authentication techniques it will be able to confirm the content authentication, ownership authentication, illegal copy of the image which stands is demanded. confronts to the water marking technique of existing and the researches the fact that against a picture is most. In this paper, It does not damage the video data which is a multimedia contents not to be, it inserts copyright information and it protects the right of ownership. It is with a copyright protection which leads the wavelet transform which is a watermark of frequency base from visual system viewpoint in the human being center with it proposes the watermarking technique against a forgery prevention.

Review on Digital Image Watermarking Based on Singular Value Decomposition

  • Wang, Chengyou;Zhang, Yunpeng;Zhou, Xiao
    • Journal of Information Processing Systems
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    • v.13 no.6
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    • pp.1585-1601
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    • 2017
  • With the rapid development of computer technologies, a number of image modification methods have emerged, which have great impacts on the security of image information. Therefore, it is necessary to protect the integrity and authenticity of digital images, and digital watermarking technique consequently becomes a research hotspot. An effort is made to survey and analyze advancements of image watermarking algorithms based on singular value decomposition (SVD) in recent years. In the first part, an overview of watermarking techniques is presented and then mathematical theory of SVD is given. Besides, SVD watermarking model, features, and evaluation indexes are demonstrated. Various SVD-based watermarking algorithms, as well as hybrid watermarking algorithms based on SVD and other transforms for copyright protection, tamper detection, location, and recovery are reviewed in the last part.