• Title/Summary/Keyword: IPTV Broadcasting

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Personalized Recommendation System for IPTV using Ontology and K-medoids (IPTV환경에서 온톨로지와 k-medoids기법을 이용한 개인화 시스템)

  • Yun, Byeong-Dae;Kim, Jong-Woo;Cho, Yong-Seok;Kang, Sang-Gil
    • Journal of Intelligence and Information Systems
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    • v.16 no.3
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    • pp.147-161
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    • 2010
  • As broadcasting and communication are converged recently, communication is jointed to TV. TV viewing has brought about many changes. The IPTV (Internet Protocol Television) provides information service, movie contents, broadcast, etc. through internet with live programs + VOD (Video on demand) jointed. Using communication network, it becomes an issue of new business. In addition, new technical issues have been created by imaging technology for the service, networking technology without video cuts, security technologies to protect copyright, etc. Through this IPTV network, users can watch their desired programs when they want. However, IPTV has difficulties in search approach, menu approach, or finding programs. Menu approach spends a lot of time in approaching programs desired. Search approach can't be found when title, genre, name of actors, etc. are not known. In addition, inserting letters through remote control have problems. However, the bigger problem is that many times users are not usually ware of the services they use. Thus, to resolve difficulties when selecting VOD service in IPTV, a personalized service is recommended, which enhance users' satisfaction and use your time, efficiently. This paper provides appropriate programs which are fit to individuals not to save time in order to solve IPTV's shortcomings through filtering and recommendation-related system. The proposed recommendation system collects TV program information, the user's preferred program genres and detailed genre, channel, watching program, and information on viewing time based on individual records of watching IPTV. To look for these kinds of similarities, similarities can be compared by using ontology for TV programs. The reason to use these is because the distance of program can be measured by the similarity comparison. TV program ontology we are using is one extracted from TV-Anytime metadata which represents semantic nature. Also, ontology expresses the contents and features in figures. Through world net, vocabulary similarity is determined. All the words described on the programs are expanded into upper and lower classes for word similarity decision. The average of described key words was measured. The criterion of distance calculated ties similar programs through K-medoids dividing method. K-medoids dividing method is a dividing way to divide classified groups into ones with similar characteristics. This K-medoids method sets K-unit representative objects. Here, distance from representative object sets temporary distance and colonize it. Through algorithm, when the initial n-unit objects are tried to be divided into K-units. The optimal object must be found through repeated trials after selecting representative object temporarily. Through this course, similar programs must be colonized. Selecting programs through group analysis, weight should be given to the recommendation. The way to provide weight with recommendation is as the follows. When each group recommends programs, similar programs near representative objects will be recommended to users. The formula to calculate the distance is same as measure similar distance. It will be a basic figure which determines the rankings of recommended programs. Weight is used to calculate the number of watching lists. As the more programs are, the higher weight will be loaded. This is defined as cluster weight. Through this, sub-TV programs which are representative of the groups must be selected. The final TV programs ranks must be determined. However, the group-representative TV programs include errors. Therefore, weights must be added to TV program viewing preference. They must determine the finalranks.Based on this, our customers prefer proposed to recommend contents. So, based on the proposed method this paper suggested, experiment was carried out in controlled environment. Through experiment, the superiority of the proposed method is shown, compared to existing ways.

How Protect Terrestrial Broadcast Contents? KBS' Systematic Strategy to Restrict Illegal Use (지상파 방송프로그램 어떻게 보호할 것인가? KBS의 방송프로그램 보호 전략)

  • Kim, Byung-Sun;Cho, In-Joon;Hahm, Sang-Jin;Lee, Keun-Sik
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2010.07a
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    • pp.208-211
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    • 2010
  • 2012년 지상파 방송은 아날로그 송출을 종료하고 디지털 방송으로 전환된다. 이렇게 전환되는 지상파 디지털 방송은 무료로 누구나 시청할 수 있는 보편적 서비스를 지향하기 때문에, 케이블TV, 위성TV, IPTV 등의 다른 매체와는 달리 기술적 보호조치 없이 방송되고 있다. 또한 DTV 방송프로그램은 원본과 똑같은 화질로 개인이 쉽게 저장할 수 있고 인터넷을 통하여 누구나 쉽게 접근이 가능하기 때문에, DTV 방송프로그램의 무단복제와 인터넷을 통한 불법재배포는 큰 문제점으로 대두되고 있다. 이러한 불법 대량배포는 방송프로그램의 저작권을 심각히 침해할 뿐만 아니라, 방송사의 고품질의 방송프로그램을 제작환경을 더욱 열악하게 만들고 있다. 또한 일반 사용자는 인식하지 못하는 사이에 인터넷을 통해 불법 콘텐츠를 사용하게 되는 악순환에 빠지게 된다. 이에 본 논문은 KBS에서 추진하고 있는 여러 콘텐츠 보호 기술들을 하나의 보호 고리로 연결하는 KBS 보호기술 체계를 소개하고자 한다. 이를 위하여 KBS는 아래의 3가지 보호 기술을 개발하여 체계적으로 연결하여 적용하고 있다. 첫째, 프로그램의 저작권과 배포 정보를 나타내는 프로그램 보호신호(PPI, Program Protection Information)와 워터마크를 방송 신호에 삽입하여 수신기에서의 프로그램 보호를 추진한다, 둘째, 인터넷 OSP(Online Service Provider)와의 제휴를 통하여 콘텐츠 필터링 기술을 도입하여 프로그램 불법 업로드, 다운로드를 방지한다. 셋째, KBS 저작물 인터넷 모니터링 시스템을 개발하여 인터넷 상의 불법 프로그램 배포정보를 획득하여 불법배포가 진행되는 사이트에 보호를 요청한다.

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Examination of Public Interests and Regulatory Framework of Pay TV Industry (유료방송시장의 공익성 개념과 정책 기조 분석)

  • Do, Joonho
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.17 no.3
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    • pp.215-226
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    • 2017
  • This study examines the concept of public interests in pay TV industry and analyzed the regulatory framework of the industry. The concept of public interests such as diversity, localism and quality which are mainly discussed in the context of over the air broadcasting extends to universal access, fair competition and consumer protection as pay TV industry grows. However, there is a lack of concrete implementation of public interests in regulatory framework and coordination of public and industrial interests was not accomplished. Major policy that regulates the pay TV industry carries out without big picture. Policy implementation without long term plan results in hierarchical regulation model and it produced consistency problem. In the process of implementing policy in pay TV industry public interests and industrial interests discussion is mixed and sometimes it played exaggerated role.

Design and simulation of session synchronization system for Linked Play of Video-on-Demand service in heterogeneous devices (VOD 서비스에서 이종매체간 연결재생을 위한 세션 동기화 시스템의 설계 및 서비스 시뮬레이션)

  • Kim, Seong-Won;Jung, Moon-Ryul
    • Journal of Broadcast Engineering
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    • v.14 no.1
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    • pp.15-27
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    • 2009
  • As various portable digital devices are developed, the space of the TV audience is expanding. We propose a structure of broadcasting control in VOD service in which viewers can resume the viewing of digital broadcasting contents in different devices after they have stopped the viewing to move to another place. Then we design a session and resource management system of VOD for this control. In particular, we design the session management of each consumer and simulate the seamless VOD connection model.

Development of 3-Screen Video Service based on Imbedded Web Browser (임베디드 웹 브라우저 기반의 3-Screen 영상서비스 개발)

  • Song, Han-Chun;Park, Myeong-Hwan
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.1
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    • pp.159-163
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    • 2011
  • 3-Screen service means that one video contents is operated on 3 different terminals(smart-phone, IP-TV, internet PC) with same service browser. In this paper, we developed 3-Screen video service system based on imbedded web browser. We evaluated and analysed of developed 3-Screen service system through Agribusiness video service offering test environment on the LG U+ network. As a result of tests, it showed that 3-Screen video service was well performed in each 3-Screen service terminals. The result of this paper will be utilized in various application developments for the 3-Screen video service in the future.

A construction method for IP-based Fixed and Personalized A/V Mosaic EPG service (IP 기반 고정형 및 맞춤형 동영상 모자익 EPG 서비스 구축방법)

  • Song, Chee-Yang;Choi, Lark-Kwon
    • Journal of the Korea Society of Computer and Information
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    • v.11 no.5 s.43
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    • pp.39-52
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    • 2006
  • As accelerates the technical evolution of high-speed network and progresses the digitalization of broadcasting network, TV channel service through satellite/cable/terrestrial networks becomes more stable and mature. However, TV channel service using IP network such as IPTV is recently emerging. Especially, when it comes to current mosaic EPG(Electronic Program Guide) as a channel guide, the implementation of EPG via IP network is under developing. Furthermore, the personal target mosaic EPG is not provided at all in the IPTV. This paper proposes a construction method of mosaic system which can support fixed and personalized mosaic EPG using IP network for viewers. The fixed mosaic EPG is made several steps as follows ; First, H/E generates several mosaic A/V streams. Then, which are transmitted to the STB in terms of multicasting via IP network. Finally, mosaic EPG is displayed on TV through STB. In addition, this paper describes a construction model of the personalized A/V mosaic EPG that represents each person's favorite channels according to their tastes and interests. As for the contributions. The TV channel guide using IP network enable viewer to select channel more easily with practical adaptation of multi-channel expansibility and sufficient usability. In addition, through personal mosaic EPG, a number of viewers can compose their own mosaic EPG and enjoy a variety of channel easily in accordance with their preferences. Finally, the personal mosaic EPG can prohibit non-adult users from connecting adult-only contents more efficiently.

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A study of Metadata design for Digital Content Marketplace based on Interactive Media (양방향매체 기반에 디지털콘텐츠 마켓플레이스를 위한 메타데이터 설계에 관한 연구)

  • Kwon, Byung-Il;Moon, Nam-Mee
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.9 no.3
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    • pp.155-164
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    • 2009
  • Digital Content Marketplace based on Interactive Media is defmed as the marketplace for content service between contents supplier and consumer through iDTV environment. This Marketplace is increasing interest to u-Life service with Digital Environment. To Interactive Media, it can contribute to enhance its effectiveness by developing various contents and service model in the initial phase of broadcasting-communication convergence. This study designed metadata using Digital Content marketplace based on Interactive Media. Specially the matadata designing include recommendation-tag for supply supplementary content. It can support self-directed action. Through basic metadata with weight value, it is designed to support supplementary content customer to want on the marketplace. Recommendation-System can be built by many method and to recommend the service content including explicit properties using collaborative filtering method can solve limitations in existing content recommendation.

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The Design and Implementation of Internet Broadcasting Solution applied to FLV (FLV를 적용한 인터넷 방송 솔루션의 설계 및 구현)

  • Kwon, O-Byoung;Shin, Hyun-Cheul
    • Convergence Security Journal
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    • v.12 no.3
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    • pp.93-97
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    • 2012
  • In this paper, we apply the next generation Internet TV solution, FLV 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 Custer (customizing) is a possible two-way Internet Broadcasting System. Third, CMS (Contents Management System) feature video content and course management content in real time via the Android phone and iPhone streaming service is available.

The Study on the Distortion Estimate of Video Quality at the Real Time HD Level Video Multicasting Transmission (실시간 HD급 동영상의 멀티캐스트 전송에서 영상품질의 왜곡평가에 관한 연구)

  • Cho, Tae-Kyung;Lee, Jea-Hee;Lee, Sang-Ha
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.60 no.3
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    • pp.161-166
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    • 2011
  • In this paper, for analysing the major factors giving the effect to the quality of HD level video on the multicasting service, we tried this test experiment on the College school network similar to the real service network environment. We measure the video quality distortion on the multicasting HD level video according to generating and increasing the broadcasting traffic on the situation that apply the QoS technique to the test network and not apply the QoS technique and then find out the threshold value of network factors giving the effect to the video quality distortion on the multicasting HD level video service. This paper can be used for guaranteeing the constant video quality and reducing the video quality distortion on the multicasting HD level video service.

Trends in Smart Mobile DMB Convergence Service of Broadcasting and Telecommunications (스마트 모바일 DMB 방통융합 서비스 동향)

  • Yun, J.I.;Bae, B.J.;Lee, S.I.;Song, Y.J.;Hur, N.H.
    • Electronics and Telecommunications Trends
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    • v.26 no.4
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    • pp.31-42
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    • 2011
  • 지상파 DMB 서비스가 시작된지 5주년을 맞은 지난해 12월, 누적단말판매량이 4천만 대를 넘는 것으로 추산되는 등 지속적인 성장을 보이고 있지만 정작 서비스를 제공하는 지상파 DMB 방송 사업자는 광고 및 채널 임대 외에 특별한 수익모델을 찾지 못해 고전하고 있다. 지상파 DMB 전체 광고매출이 2006년 약 17억 원에서 2010년 약 210억 원 정도로 꾸준히 늘고 있지만 사업 규모에 비해 턱없이 부족한 실정이고 모바일 IPTV, 스마트폰의 등장으로 새로운 환경 변화에 적응해야 하는 어려움도 있다. 본 고에서는 스마트 모바일 DMB라는 이름으로 방송통신 융합 측면에서 지상파 DMB 서비스의 변화에 대한 동향을 살펴보고자 한다. 방송 사업자와 통신 사업자가 협력을 통해 서비스를 제공한 DMB2.0 서비스, 스마트폰과의 동거를 시작하는 스마트 DMB 서비스를 살펴보고 올해부터 기술개발이 추진되는 스마트 모바일 하이브리드 DMB를 소개한다.

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