• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1403-1406
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• 2003

This paper presents a user preference description for graphics contents that is developed in the process of the MPEG-21 DIA(Digital Item Adaptation) standard. The description scheme in this paper is proposed by the authors and adopted in the current AM (Adaptation Model) document of the MPEG-21 DIA. The goal of MPEG-21 standard is providing a multimedia framework that Provides augmented and transparent use of digital contents across various networks and terminals fur the life cycle of digital contents. DI (Digital Item) is a standardized basic unit of digital contents for transaction in the scope of MPEG-21. DIA contains both media resources and metadata including rights information.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2002.11a
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• pp.133-137
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• 2002

네트워크상에서 멀티미디어 컨텐츠(디지털 아이템)를 다양한 전송 매체(인터넷, 방송 무선전화 등)를 통해 전달하고, 서로 다른 기능의 단말기(PDA, PC, TV, Phone 등)를 통해 디지털 아이템을 소비하는데 있어 상호호환성(Interoperability)을 제공하기 위해 디지털 아이템의 생성, 전달, 소비 단계에 이르기까지 디지털 아이템의 규격을 제정하고자 MPEG-21(멀티미디어 프레임워크)이라는 이름의 국제 표준화 작업이 진행 중이다[1]. 본 논문에서는 MPEG-21의 디지털 아이템 선언 언어인 DIDL(Digital Item Declaration Language)을 이용하여 컨텍스트 디지털 아이템(XDI: conteXt Digital Item)을 XML 문서형태로 생성하고, 이를 컨텐츠 디지털 아이템(CDI: Content Digital Item)의 종류(영화, 음악, 도서, 게임 등)에 구애받지 않고 웹 브라우저를 통해 소비할 수 있는 디지털 아이템 브라우저를 구현하였다. 디지털 아이템의 다양한 형태에 적절히 대응하기 위해 XSLT(XML Stylesheet Language Transform)를 이용하여 디지털 아이템 정보를 표현하고 웹 브라우저를 통해 소비자의 환경에 적합한 디지털 아이템을 소비 및 이용할 수 있는 어플리케이션을 제공하는 환경에 대한 연구 결과를 제시한다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.2
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• pp.129-141
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• 2010

In network service environment, cultures from diversified fields are easily accessible thanks to the convenient digital content services. Unfortunately, unauthorized access and indiscreet misuse behaviors have deprived content owners of their copyrights. This study suggests an integrity-ensured model applicable for forensic evidence of digital content infringement in network service environment. The suggested model is based on MPEG-21 core components for digital content protection and the system is designed in connection with the components of digital content forensics. Also, the present study suggests an efficient technology to protect and manage computer forensic evidence and digital content by authorizing digital content use and catching infringing logs of authorized users without lag in network environment for the benefit of network security and reliability.

• ETRI Journal
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• v.28 no.5
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• pp.561-573
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• 2006

In this paper, we present a practical implementation of the MPEG-21 multimedia framework for broadcasting and communication convergent services. MPEG-21 standard technology was exploited to build a convergent service framework. Using this framework, a service model and several scenarios have been successfully designed and implemented. In addition, interoperability, which is the main objective of a multimedia framework, especially in a convergent environment consisting of heterogeneous networks and various types of devices, has been addressed in detail. The experimental results show that the implemented test bed provides a next-generation multimedia service; that is, universal multimedia access (UMA), meeting the requirements of a broadcasting and communication convergent environment.

• Journal of information and communication convergence engineering
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• v.9 no.1
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• pp.50-54
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• 2011

Recently there are so many media contents created and used by variety routes. Therefore, it is essential to make a new platform which is used for distributing media contents include IPTV. With open IPTV service, developing the new platform became even more important. Because open IPTV makes it possible for consumers to choose contents regardless of contents of the providers. The new platform has to accept current variety service structure. MPEG-21 multimedia framework was developed to satisfy these needs. It presented the distribution framework of the contents but didn't restrict the particular solutions for protecting the rights. In this paper, we present authoring and consuming system for package contents based on MPEG-21 Multimedia Framework for distributing media resources and managing the license of multimedia contents

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.1539-1542
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• 2003

MPEG-21의 Digital Item은 표준으로 정해진 DID(Digital Item Declaration) 모델을 이용하여 표현된다. 해당 모델은 XML 스키마에 기반하여 정의된 것으로서 뛰어난 표현력과 확장성을 제공할 수 있다. 하지만 정의된 데이터의 저장이나 검색 및 기존 데이터와의 연계에 관한 언급은 표준에서 이루어지지 않고 있다. 본 연구에서는 MPEG-21에서 DID 모델을 이용하여 정의되어 있는 Digital Item을 관계형 데이터베이스에 저장하여 사용할 수 있는 방법에 관하여 논하고자 한다. DID를 이용하여 정의된 내용을 관계형 데이터베이스의 스키마로 매핑 하였으며, SQL 언어를 이용하여 기존 데이터와의 연동 검색을 지원하도록 설계하였다.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.3 no.2
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• pp.72-80
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• 2004

This Paper is implementing IPMP system based on Server/client Structured Linux. We referenced OpenIPMP System, which is a reference software of IPMP (Intellectual Property Management and Protection) solution. Using this system, we developed multimedia contents service providing system using MPEG-21's REL(XML), which is applicable to new media service environment.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.203-208
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• 2006

본 논문에서는 MPEG-21 프레임워크를 Peer-to-Peer Network 상에서 구동시킬 때의 문제점을 해결하면서, P2P의 장점을 최대한 이용할 수 있도록 하는 P2P 방식의 디지털 권한 관리 시스템(P2PDRMEngine)을 설계한다. MPEG-21 프레임워크의 여러 구성 요소들 중 IPMP(Intellectual Property Management and Protection components), DI(Digital Item), Multimedia Contents 등의 구조에 몇 가지 요소를 추가하여 P2PDRMEngine과 MPEG-21 프레임워크가 서로 유기적인 동작을 할 수 있도록 설계하고 또한, DI를 생산, 배포, 사용할 때 사용자에게 편리성을 제공 해주는 기능도 고려한다. P2PDRMEngine은 기존의 MPEG-21 프레임워크의 수행에 지장을 주지 않으면서 보안적인 측면과 요소 간의 기능을 강화하는 데 초점을 맞추어 설계한 시스템이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.101-104
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• 2007

Digital content increased much according to the development of an information technique and internet. Many content services are appearing therefore. These would be provide customized digital content to satisfy user request following specific character of user. A digital content must be provided to the structure to be standardized for this. The expression is possible this in MPEG to DID of MPEG-21 framework which is processing the standardization. In this paper, We designed and implemented module that possible to create meta data and to package Digital Item via MPEG-21 DID Standardization based on selected information of consumer.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.421-424
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• 2005

Recently, As the managing techniques of consuming method and transmission for the sharply increasing multimedia contents has been developed regardless of compatibility by each company, It is a serious obstacle to the development of the organized copyright techniques because nothing can be shared by each other. The MPEG committee under ISO established MPEG-21 framework for it and proposed the REL as the words taking care of copyright and standardized them. However, there seemed to be some problems that special knowledge such as Schema defining the structures of XML and REL should be necessary. Furthermore, There can be some obscurity when the authority of REL document and one of consumer side is different. Therefore, in this paper, we laid out and realized the copyright including consuming system to copyright and prove the REL documents more conveniently and RDD integration system using Web Services technology which can get rid of the vagueness of REL.