Development of Broadcasting and Telecommunication Convergence Framework based on MPEG-21 (MPEG-21 기반 방송·통신 융합 프레임워크 기술 개발)
 
MPEG-21 Multimedia Framework aims at defining a normative open framework for multimedia delivery and consumption for use by all the players in the delivery and consumption chain. This open framework will provide content creators, producers, distributors and service providers with equal opportunities in the MPEG-21. The vision for MPEG-21 is to define a multimedia framework to enable transparent and augmented use of multimedia resources across a wide range of networks and devices used by different communities.

The scope of MPEG-21 could be described as the integration of the critical technologies enabling transparent and augmented use of multimedia resources across a wide range of networks and devices to support functions such as: content creation, content production, content distribution, content consumption and usage, content packaging, intellectual property management and protection, content identification and description, financial management, user privacy, terminals and network resource abstraction, content representation and event reporting.

In this project, we develop the framework of MPEG-21. So we make Digital Item using Digital Item Generator and parse DID, DII, IPMP, MPEG-7, REL and so on based on Digital Item Processing(DIP).

 
Figure 1. An Exemplary Digital Item
 
Figure 1 indicates the exam of Digitl Item. Digital Item used in MPEG-21 Framework is declared by Digital Item Declaration Models such as Container, Descriptor, Item, Component, Resource and so on. And upper example is Digital Item which have two item, each Item includes two Component. In short, this Digital Item related to a World-cup image and a audio.
 
Fig. 2. Agents Working Flow in each Platform
 
As shown Figure 2, Digital Item is manipulated, used based on DIP architecture. The left-deshlLeft dashed-line indicate interaction between the MPEG-21 terminal and a DI that arrived at this terminal. Right dashed-line is interaction between a User and MPEG-21 terminal. And Full-line arrow indicate interaction inside the MPEG-21 terminal. The DIM Engine can be seen as a central point each part of MPEG-21 communicates using DIM engine.
 
Figure 3. Overview of MPEG-21 TestBed Implementation
 
In Figure 3, each part of MPEG-21 communicates using DIM engine. Through GUI module and Message Interface, user can use Digital Item in which DIMs are defined. And DIM(offers to user many methods to manipulate, consume and use Digital Item) is defined by DIBO(Digital Item Base Operations) and DIxO(Digital Item extensible Operations).
 
Figure 4. Interface of DIP
 
Figure 4 show us interface of Digital Item Processing. Based on DIP architecture, all Digital Item can be rendered and user can be use Digital Item through DIM List.
 
International Conference Papers
"Digital Item Adaptation for Color Vision Variations," Jaeil Song, SeungJi Yang, Cheonseog Kim, Jeho Nam, Jin Woo Hong and Yong Man Ro, Human Vision and Electronic Imaging VIII - IS&T and SPIEI S&T/SPIE's 15th Annual Symposium, Electronic Imaging Science and Technology, Jan. 2003.
"MPEG-21 Digital Item Adaptation For Color Vision Deficiency", Seungji Yang. Jaeil Song, Cheonseog Kim, Yong Man Ro, Jeho Nam, Jinwoo Hong, Proceeding on IWAIT, Jan. 2003
Contribution to International Standard
MPEG MDS Group, MPEG-21 "Color Image Dataset for CE on Color Vision Deficiency", JTC1/SC29/WG11 M 8544, Klagenfurt, July 2002.
MPEG MDS Group, MPEG-21 "Report on CE for Visual Accessibility - Part 1: Color Vision Deficiency", JTC1/SC29/WG11 M8543, Klagenfurt, July 2002.
MPEG Requirements Group, MPEG-21 "DIA for Colour Vision Deficiency", ISO/IEC JTC1/SC29/WG11 M8303, Fairfax, May 2002.
MPEG Requirements Group, MPEG-21 "DIA Description for Content-based Retrieval", ISO/IEC JTC1/SC29/WG11 M8301, Fairfax, May 2002.
Domestic Journal Papers
"MPEG-21 방송 디지털 아이템을 위한 생성 및 파싱 시스템에 대한 연구", 김천석, 한희준, 노용만, 남제호, 홍진우, 방송공학회 논문지 제 8권 제 1호, p80~90, 2003 .
Domestic Conference Papers
"MPEG-21 기반 방송용 컨텐츠의 디지털 아이템 생성 및 파싱", 김천석, 한희준, 남제호, 홍진우, 노용만, 한국 방송 공학회
"MPEG-21기반 디지털 아이템 생성기의 구현", 한희준, 김천석, 노용만, 2002년도 멀티미디어 추계학술발표대회, V.5, No.2 p408-411, 2002.11
"MPEG-21 DIA for Visual Accessibility," 송재일, 양승지, 김천석, 남제호, 김재준, 홍진우, 노용만, 제 4회 춘천 멀티미디어 합동 학술회의, Vol.1, No.1, pp.191-194, Jun. 2002
Registered Software(Program) List
"MPEG-21 디지털 아이템 생성기" 한희준, 김천석, 노용만, 인터정보(주), 2002.12.
"MPEG-21 디지털 아이템 파싱 프로그램" 김천석, 한희준, 노용만, 인터정보(주), 2002.12.
"MPEG-21 디지털 아이템 데이터 베이스 프로그램" 김천석, 한희준, 노용만, 인터정보(주), 2002.12.