Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Broadcast Engineering
Journal Basic Information
Journal DOI :
The Korean Institute of Broadcast and Media Engineers
Editor in Chief :
Volume & Issues
Volume 11, Issue 4 - Dec 2006
Volume 11, Issue 3 - Sep 2006
Volume 11, Issue 2 - Jun 2006
Volume 11, Issue 1 - Mar 2006
Selecting the target year
Development of BIFS Contents Authoring System for T-DMB Interactive Data Service
Ah Sang-Woo ; Cha Ji-Hun ; Moon Kyung-Ae ; Cheong Won-Sik ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 263~275
This paper introduces an interactive contents authoring system which can easily and conveniently produce interactive contents for the Terrestrial Digital Multimedia Broadcasting (T-DMB). For interactive broadcasting service, T-DMB adopted MPEG-4 BIFS technology. In order to the interactive service becomes flourishing on the market, various types of interactive contents should be well provided prior to the service. In MPEG-4 BIFS, broadcasting contents are described by the combination of a large number of nodes, routes and descriptors. In order to provide interactive data services through the T-DMB network, it is essential to have an interactive contents authoring system which allows contents authors to compose interactive contents easily and conveniently even if they lack any background on MPEG-4 BIFS technology. The introduced authoring system provides powerful graphical user Interface and produces interactive broadcasting contents in the forms of binary and textual format. Therefore, the BIFS contents authoring system presented in this paper would vastly contribute to the flourishing interactive service.
MXF-based Broadcast Metadata Authoring and Browsing
Lee Moon-Sik ; Jung Byung-Hee ; Park Sung-Choon ; Oh Yeon-Hee ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 276~283
This paper analyzes metadata workflow from creation to browsing, and discusses metadata authoring and browsing technology. Unlike usual multimedia authoring, broadcast metadata authoring means metadata editing synchronized with video. In order to make practical application of other systems, the result is in XML or MXF(Material eXchange Format) based on common metadata scheme. The MXF Browser developed with the consideration of broadcast metadata that is time-synchronized with AV content provides not only metadata authoring capability but also advanced content browsing services such as summary playback and highlight browsing based on metadata multi-track.
Design and Implementation of a TV-Anytime Metadata Authoring Tool for Personalized Broadcasting Services
Jun Dong-San ; Kim Min-Je ; Lee Han-Kyu ; Yang Seung-Jun ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 284~301
In this paper, we present a design and implementation of a TV-Anytime metadata authoring tool for providing personalized data-broadcasting services. The TV-Anytime specifies metadata schema, metadata coding and delivery, and provides service models to provide personalized broadcasting content services at anytime when users want to consume using metadata including ECG (Electronic Content Guide) and content descriptive information in a PDR (Personal Digital Recorder)-centric environment. In spite of a useful services based on TV-anytime metadata, the metadata authoring still remains as a harassing and time consuming task. For easy metadata authoring, the proposed metadata authoring provides the following key functionalities: metadata visualization, media access, and semi-automatic method for editing segment related metadata.
Chip Equalizer using Tap Selection Algorithm for Satellite Digital Multimedia Broadcasting (DMB)
Lee Sang-Joon ; Lee Goon-Seop ; Lee Dong-Hahk ; Yu Jae-Hwang ; Seo Jong-Soo ; Byeon Jeong-Ho ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 302~310
ITU-R B.O. 1130-4 Digital System E adopted for Korean satellite DMB service is a multimedia broadcasting system based on DS-CDM-QPSK technique which broadcasts audio and video contents via the satellite or terrestrial gap-filler. However, Digital System E can not provide full loading services because the multi-channel interference (MCI) is increased due to the loss of orthogonality between signature waveforms in multipath fading channels. In this paper a chip equalizer using tap selection algorithm that enhances the receiving performance is proposed and compared to the conventional rake receiver for the satellite DMB system.
Study of Integrated Scheduling Guide in Terrestrial DTV
Moon Nam-Mee ; Jang Ho-Yeon ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 311~319
Platform operators adopted ATSC standard send only their own channel program schedule information, so in order for the viewer to see other channel information, they have to tune the channel to the other. This issue arises from the operators' lack of bandwidth and the business interest conflicts between the platform operators. This paper guides how ATSC standard could be used within Xlet based application to display other channel information through the ISG (Integrated Scheduling Guide) technology via interactive return channel services. Its own channel information can be displayed by using on-air PSIP (Program and System Information Protocol) data.
Single memory based scan converter for embedded JPEG encoder
Park Hyun-Sang ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 320~325
An image is partitioned into non-overlapping
blocks fer JPEG compression. A scan order converter is placed before the JPEG encoder to provide
blocks from the pixels in raster scan order. In general, its architecture requires two line memories for storing eight lines separately to allow the concurrent memory access by both the camera and JPEG processors. Although such architecture is simple to be implemented, it can be inefficient due to too excessive memory requirement as the image resolution increases. However, no deterministic addressing equation has been developed for scan conversion. In this paper, an effective memory addressing algorithm is proposed that can be devised only by adders and subtracters to implement a scan converter based on the single line memory.
A Systematic Code Design for Reduction of the PAPR in OFDM
Kang Seog-Gen ; Kim Jeong-Goo ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 326~335
Design criteria far a block code which guarantees minimized PAPR of the OFDM signals are proposed in this paper. Encoding procedure of the minimum PAPR codes (MPC) is composed of searching a seed codeword, circular shifting the register elements, and determining codeword inversion. It is shown that the PEP is invariant to the circular shift of register elements and codeword inversion. Based on such properties, systematic encoding rule for MPC is proposed. In addition proposed encoding rule can reduced greatly the size of look up table for MPC.
Studying the Viewers' Acceptability on the Image Resolutions and Assessing the ROI-Based Scheme for Mobile Displays
Ko Jae-Seung ; Ahn Il-Koo ; Lee Jae-Ho ; Seo Ki-Won ; Kwon Jae-Hoon ; Joo Young-Hun ; Oh Yun-Je ; Kim Chang-Ick ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 336~348
The recent advances in multimedia signal coding and transmission technologies allow lots of users to watch videos on small LCD displays. In this paper, we briefly describe an intelligent display technique to provide small-display-viewers with comfortable experiences, and study the minimum image size tolerated and utility of displaying region of interest (ROI) only when needed. The study, with 111 participants, examines minimum image size to ensure viewers pleasant viewing experiences, and evaluates the degree of satisfaction when they are viewed with region of interest (ROI) only. The experimental results show that the ROI display enhances the viewers' satisfaction when the image size becomes less than
, and thus it is useful to provide the intelligent display, if necessary, which can extract and display ROI only.
Design and Implementation of Data Broadcasting Authoring Tool for Multi-platforms
Lee Cha-Won ; Nam Yoon-Seok ; Kim Jung-Hwan ; Na Hee-Joo ; Kim Seong-Won ; Jung Moon-Ryul ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 349~362
There are several data broadcasting standards that the developers should apply when develops any interactive digital TV contents. In Korea, we adopts ACAP(Advanced Common Application Platform) as terrestrial data broadcasting standard, MHP(Multimedia Home Platform) fur satellite data broadcasting and OCAP(OpenCable Application Platform) for cable data broadcasting. Therefore, content providers must develop different applications which suited for different standards - even if the application is exactly same. This is waste of time and energy. This paper suggests a solution to solve this problem among different broadcasting platforms - MHP, OCAP and ACAP. We compared these specifications, and found out what APIs are typically used far applications. Then we designed XML file structures that can be used to define contents of applications. We also implemented an authoring tool which automatically generates XML files by interaction with users. This paper also ascertains Xlet applications, produced by the authoring tool, works properly on each different data broadcasting standard - MHP, OCAP and ACAP.
An Optimization Technique of Scene Description for Effective Transmission of Interactive T-DMB Contents
Li Song-Lu ; Cheong Won-Sik ; Jae Yoo-Young ; Cha Kyung-Ae ;
Journal of Broadcast Engineering, volume 11, issue 3, 2006, Pages 363~378
The Digital Multimedia Broadcasting(DMB) system is developed to offer high quality audio-visual multimedia contents to the mobile environment. The system adopts MPEG-4 standard for the main video, audio and other media format. It also adopts the MPEG-4 scene description for interactive multimedia contents. The animated and interactive contents can be actualized by BIFS(Binary Format for Scene), the binary format for scene description that refers to the spatio-temporal specifications and behaviors of the individual objects. As more interactive contents are, the scene description is also needed more high bitrate. However, the bandwidth for allocating meta data such as scene description is restrictive in mobile environment. On one hand, the DMB terminal starts demultiplexing content and decodes individual media by its own decoder. After decoding each media, rendering module presents each media stream according to the scene description. Thus the BIFS stream corresponding to the scene description should be decoded and parsed in advance of presenting media data. With these reason, the transmission delay of BIFS stream causes the delay of whole audio-visual scene presentation although the audio or video streams are encoded in very low bitrate. This paper presents the effective optimization technique for adapting BIFS stream into expected MPEG-2 TS bitrate without any bandwidth waste and avoiding the transmission delay of the initial scene description for interactive DMB contents.