• Title, Summary, Keyword: Real Time Broadcasting

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In-service Real-time and Continuous Objective Video Quality Assessment for DTV Broadcasting

  • Han, Chan-Ho
    • Journal of Korea Multimedia Society
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    • v.16 no.1
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    • pp.50-55
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    • 2013
  • This article presents a simple and reasonable in-service, real-time, and continuous single-ended objective video quality assessment model for DTV broadcasting using a multiburst signal at the bottom of the transient effect area, similar to Vertical Interval Test Signals. The issue of in-service video-quality monitoring in DTV broadcasting is addressed, and an effective method of quality monitoring is presented. The proposed method is also implemented and tested in a range of situations using a simulated HDTV broadcasting network.

Terrestrial Stereoscopic Broadcasting System Technology based on NRT (NRT 기반 연동형 지상파 3D 방송 서비스 기술)

  • Park, Jong-Hwan;Kim, Kyu-Heon;Lee, Jang-Won;Yim, Hyun-Jeong;Yun, Kug-Jin;Cheong, Won-Sik;Hur, Nam-Ho
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.48 no.6
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    • pp.35-47
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    • 2011
  • A present experimental broadcasting is service compatible to delivery left view and right view of a dual stream for backward compatible with 2D device. It has a limitation of quality for a transmission of dual stream in terrestrial bandwidth 19 Mbps. This paper proposes adjunct terrestrial-3D broadcasting system which can provide a stable quality beyond a limitation of quality from fixed bandwidth. It proposes the system that composes a high quality stereoscopic video through synchronizing Real time broadcasting and Non Real Time broadcasting Regardless of the terrestrial bandwidth. So this paper tries to analyze each technique of Real-Time broadcasting and NRT broadcasting, and verify this proposal through the technique of an algorithm that we can implement NRT adjunct high quality 3DTV system and the experiments.

Implementation of real time VJing responding to user's motion

  • Jung, Haehyun;Kim, Hyunggi
    • International Journal of Internet, Broadcasting and Communication
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    • v.7 no.2
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    • pp.41-50
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    • 2015
  • As various media have developed in modern society, frequency of use of interactive media has increased which makes interactive function that uses and handles projection mapping and LED screen in set design of broadcasting, concert, play, musical and EDM(Electronic dance music) in real time possible. Development of various media led today's viewers to have higher cultural desire and the need of various interactive performance contents to receive more attention.[1]. This thesis implemented real time VJing that responds to user's motion based on existing H/W by utilizing real time interactive elements.

A Study on the Viewing Rate Trends of Digital Media Service Special Reference to Terrestrial Real Time Broadcasting of IPTV (IPTV 지상파 실시간방송 채널의 시청률 추세와 영향 요인에 관한 연구)

  • Lee, Sang-Ho
    • Journal of Digital Convergence
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    • v.15 no.9
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    • pp.471-477
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    • 2017
  • This paper deals with the viewing rate trends of digital media service special reference to terrestrial real time broadcasting of IPTV. In a few years, TV viewership of young people is decreasing, the audience viewing rate of the terrestrial broadcasting which is the representative of the media decreases, and the change of the broadcasting industry is progressing. Especially after the terrestrial broadcaster 's VOD holdback was extended, the viewer' s movement on the competitive channel & mobile media was rapidly progressing. Researcher assumed that the viewing rate of the terrestrial real-time broadcasting has influenced the comprehensive channel, CJ E&M subsidiary channels. As a result, researcher verified using statistical methodological time series analysis and regression analysis. Based on these results, researcher expects media players to prepare policies for viewers' satisfaction and symbiotic growth of markets.

The Design and Implementation of Internet Broadcasting Move Picture Solution apply to FlashVideo (FlashVideo를 적용한 인터넷 방송 동영상 솔루션의 설계 및 구현)

  • Kwon, O-Byung;Kim, Kyeong-Su
    • Journal of Digital Convergence
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    • v.10 no.6
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    • pp.241-246
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    • 2012
  • In this paper, we apply the next generation Internet Broadcasting Move Picture solution, FlashVideo has been designed and implemented. Currently being broadcast in the field to compress HD video in real time, as well as live Internet VOD services are available through the online system, the Internet LIVE broadcast and VOD service easy to operate and UCC services that support the solution. VOD video cameras and in real time using H264 CORECODEC to compress MPEC4, WMV, and real-time video streaming on the Internet, and phone system that supports the first, real-time recording of camera images featured nation's first real-time encoder system (Real time encoder system) is, Web and smart environment suitable for supporting the latest CORECODEC technology and software products. Second, the video can be played in MP4 player and customize your chat, and customizing is a possible two-way Internet Broadcasting System. Third, CMS (Contents Management System) feature video contents and course management contents in real time via the Android phone and iPhone streaming service is available.

A Longitudinal Time Series Study on the Viewing Behavior of Digital Media VOD Service Focused on Terrestrial VOD of IPTV for 5 years (디지털미디어 VOD 서비스 시청행태의 종단 시계열추세 연구 - 5년간 지상파VOD의 실적을 중심으로)

  • Lee, Sang-Ho
    • Journal of the Korea Convergence Society
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    • v.8 no.9
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    • pp.277-283
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    • 2017
  • This paper deals with a longitudinal time series study on the viewing behavior of digital media service. After holdback of terrestrial broadcasting VOD service was extended in 2013, viewers' terrestrial broadcasting VOD viewing went down sharply. Researcher assumed that there was driven by watching alternative products such as movies, kids, etc. as the cause of the decline of the terrestrial broadcasting VOD viewing. In addition, researcher assumed that the decline of terrestrial broadcasting VOD viewing had an influence on the viewing rate of the terrestrial real-time broadcasting, and confirmed the cause of the decreasing of the terrestrial real-time broadcasting viewing rate. In order for terrestrial broadcasters to retrieve real-time broadcasting and VOD viewing, it is necessary to shorten the VOD holdback and reacquire viewers away from terrestrial broadcasting.

Real-Time Hybrid Broadcasting Algorithm Considering Data Property in Mobile Computing Environments (이동 컴퓨팅 환경에서 데이타 특성을 고려한 실시간 혼성 방송 알고리즘)

  • Yoon Hyesook;Kim Young-Kuk
    • Journal of KIISE:Information Networking
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    • v.32 no.3
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    • pp.339-349
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    • 2005
  • For recent years, data broadcast technology has been recognized as a very effective data delivery mechanism in mobile computing environment with a large number of cli;ents. Especially, a hybrid broadcast algorithm in real-time environment, which integrates one-way broadcast and on-demand broadcast, has an advantage of adapting the requests of clients to a limited up-link bandwidth and following the change of data access pattern. However, previous hybrid broadcasting algorithms has a problem in the methods to get a grip on the change of data access Pattern. It is caused by the diminution of requests for the data items which are contained in periodic broadcasting schedule because they are already broadcasted. To solve this problem, existing researches may remove data items in periodic broadcasting schedule over a few cycles multiplying cooling factor or find out the requests of data items with extracting them on purpose. Both of them are the artificial methods not considering the property of data. In this paper, we propose a real-time adaptive hybrid broadcasting based on data type(RTAHB-DT) to broadcast considering data property and analysis the performance of our aigorithm through simulation study.

Study on the MQTT protocol design for the application of the real-time HVAC System

  • Jung, Hun
    • International Journal of Internet, Broadcasting and Communication
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    • v.8 no.1
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    • pp.19-26
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    • 2016
  • In this paper, the existing domestic HVAC systems, devices TCP / IP does not support the most, thereby, not performed remote management, it is necessary to regularly field service, inefficiency and cost bring a burden. This is through a comparison of the IoT-based primary, real-time protocol of what has become a hot topic recently, to be able to control and real-time monitoring through the CCU device in the HVAC system. Compare for this Internet of Things device for real-time monitoring and control of the XMPP, CoAP, MQTT main real-time protocol is used on. Finally, flexibility, light weight, based on MQTT a two-way messaging protocols with reliable message delivery, implements the protocol on the real-time HVAC system in the cloud platform.

Design and Implementation of the Higher-quality Terrestrial 3DTV Broadcasting Standard Specification Based on Synchronization with Non-Real-Time Contents (고화질 스테레오스코픽 영상 서비스를 위한 비실시간 콘텐츠 연동 지상파 3DTV 방송 표준규격 설계 및 검증)

  • Lee, Jangwon;Kim, Kyuheon;Yim, Hyun-Jeong;Cheong, Won-Sik
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37C no.12
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    • pp.1185-1194
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    • 2012
  • This paper proposes a new terrestrial 3DTV broadcasting standard specification based on synchronization with non-real-time contents in order to overcome quality limitations of the current 3DTV services that are arisen from the limited bandwidth of the legacy broadcasting channel. In the services using the proposed specification, one view sequence of a stereoscopic video content is delivered as a non-real-time content in idle time, and the other view sequence is transmitted in real time broadcasting signal, thereafter two sequences are synchronized in a receiver for display. Thus, it is possible to provide higher-quality stereoscopic video content services than the current 3DTV services. In order to realize these services, a new mechanism is required which enables synchronization between the data that are from different transmission media and time. Therefore, this paper suggests a solution by multiplexing the synchronization signals of non-real-time contents into broadcasting signals with real-time streams together. This solution can provide a accurate synchronization mechanism by minimum updates of legacy broadcasting systems while maintaining compatibility with legacy services.

Design and Implementation of Embedded Linux-based Personal Mobile Broadcasting Service (임베디드 리눅스 기반의 개인 모바일 방송국 서비스 설계 및 구현)

  • Kim, Do-Hyung;Kim, Sun-Ja;Lee, Cheol-Hoon
    • The KIPS Transactions:PartD
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    • v.16D no.3
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    • pp.441-450
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    • 2009
  • This paper describes the design and implementation of Personal Mobile Broadcasting Service which bases on embedded Linux and it supports personal broadcasting in wireless network environments. Recently, with the advent of various wireless networks and the increased use of high performance mobile devices, the demand for personal mobile broadcasting is being increased. The personal mobile broadcasting service makes it possible that mobile users create contents using their own mobile devices while they are moving or they are in any place. And then, it sends the created contents to server in real-time where their blogs are. Users connected to the content creator's blog can play the contents in real-time. With the implemented personal mobile broadcasting service, mobile users can share multimedia contents in real-time through wireless networks. And, it also helps users to construct their own broadcasting stations where they can broadcast the scene of the accident or public performance in real-time.