• Title/Summary/Keyword: media freedom

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Obtaining 3D Shape of Specular Surface Using Five Degrees of Freedom Camera System

  • Yusuf, Khairi;Miyake, Tetsuo
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1998.06b
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    • pp.41-44
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    • 1998
  • In this paper, a new method of obtaining specular surface shape by using five degrees of freedom camera system is described. The normal vectors of the surface are extracted by achieving the coincident between the camera axis and the surface normal vector. This method uses a five degrees of freedom (5DOF) camera to fulfill this task. From the normal vector data, the shape of the surface is reconstructed. The result shows that the methodology improves the 3-D shape of object measurement with good accuracy.

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A Study on a Legitimate Plaintiff in Cases Involving a State Request for a Right of Reply (반론보도청구사건에 있어 국가기관의 당사자 적격에 관한 고찰)

  • Yoo, Jae-Woong
    • Korean journal of communication and information
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    • v.21
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    • pp.147-175
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    • 2003
  • This study is primarily concerned with the criteria for choosing a legitimate state plaintiff in cases involving a states request to media for a right of reply. Interpretation of the right of reply itself is different from country to country because of different constitutional views and systems in each state. Unlike the United States, the constitution of the Republic of Korea does not expressly prohibit the making of laws adversely affecting freedom of the press. Accordingly, in Korea freedom of the press may be restricted through legislation within certain limits and the right of reply is not incompatible with the spirit of the constitution. An analysis of relevant law makes it clear that the particular agency aggrieved should initiate the suit rather than the Justice Minister. The idea that the Justice Minister should assume the role of plaintiff in all state cases seems to stem from flawed interpretations of provisions in the Law Governing Registration of Periodicals and the Law Governing Litigation Involving the State. Even though each state agency has the right of reply, it should be cautioned not to abuse it as the states frequent involvement in litigation may bring on unnecessary misunderstanding and have a chilling effect on the media. The right of reply does not always imply that a certain media report in question is wrong and the media should be sanctioned for it. The right of reply is basically intended to help the general public make an informed judgment on issues presented in the media and insure fairness and balance.

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Fluid-structure interaction system predicting both internal pore pressure and outside hydrodynamic pressure

  • Hadzalic, Emina;Ibrahimbegovic, Adnan;Dolarevic, Samir
    • Coupled systems mechanics
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    • v.7 no.6
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    • pp.649-668
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    • 2018
  • In this paper, we present a numerical model for fluid-structure interaction between structure built of porous media and acoustic fluid, which provides both pore pressure inside porous media and hydrodynamic pressures and hydrodynamic forces exerted on the upstream face of the structure in an unified manner and simplifies fluid-structure interaction problems. The first original feature of the proposed model concerns the structure built of saturated porous medium whose response is obtained with coupled discrete beam lattice model, which is based on Voronoi cell representation with cohesive links as linear elastic Timoshenko beam finite elements. The motion of the pore fluid is governed by Darcy's law, and the coupling between the solid phase and the pore fluid is introduced in the model through Biot's porous media theory. The pore pressure field is discretized with CST (Constant Strain Triangle) finite elements, which coincide with Delaunay triangles. By exploiting Hammer quadrature rule for numerical integration on CST elements, and duality property between Voronoi diagram and Delaunay triangulation, the numerical implementation of the coupling results with an additional pore pressure degree of freedom placed at each node of a Timoshenko beam finite element. The second original point of the model concerns the motion of the outside fluid which is modeled with mixed displacement/pressure based formulation. The chosen finite element representations of the structure response and the outside fluid motion ensures for the structure and fluid finite elements to be connected directly at the common nodes at the fluid-structure interface, because they share both the displacement and the pressure degrees of freedom. Numerical simulations presented in this paper show an excellent agreement between the numerically obtained results and the analytical solutions.

Performance Analysis on View Synthesis of 360 Videos for Omnidirectional 6DoF in MPEG-I (MPEG-I의 6DoF를 위한 360 비디오 가상시점 합성 성능 분석)

  • Kim, Hyun-Ho;Kim, Jae-Gon
    • Journal of Broadcast Engineering
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    • v.24 no.2
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    • pp.273-280
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    • 2019
  • 360 video is attracting attention as immersive media with the spread of VR applications, and MPEG-I (Immersive) Visual group is actively working on standardization to support immersive media experiences with up to six degree of freedom (6DoF). In virtual space of omnidirectional 6DoF, which is defined as a case of degree of freedom providing 6DoF in a restricted area, looking at the scene at any viewpoint of any position in the space requires rendering the view by synthesizing additional viewpoints called virtual omnidirectional viewpoints. This paper presents the performance results on view synthesis and their analysis, which have been done as exploration experiments (EEs) of omnidirectional 6DoF in MPEG-I. In other words, experiment results on view synthesis in various aspects of synthesis conditions such as the distances between input views and virtual view to be synthesized and the number of input views to be selected from the given set of 360 videos providing omnidirectional 6DoF are presented.

Dynamic Stability Analysis of Flexible Media (유연 매체의 동적 안정성 해석)

  • Jee, Jung-Geun;Hong, Sung-Kwon;Jang, Yong-Hoon;Park, No-Cheol;Park, Young-Pil
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2004.11a
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    • pp.596-599
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    • 2004
  • The media transport systems, such as printers, copiers, facsimile, ATMs, cameras, etc., have been widely used and being developed rapidly. In the development of those systems, the media feeding mechanism is an important key technology for the design and development of the media transport systems. In this paper, a multi-degree of freedom sheet model with dynamic contact conditions is presented to understand the mechanism of sticking and jamming. A sheet is modelled as a cantilever beam and the feeding velocity is assumed to be constant. The relation between the feeding velocity and the coefficient of friction for guaranteeing stable feeding is presented. Simulations are performed for a horizontal linear guide and a oblique linear guide, calculating the contact force and contact states of mass points.

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Study on 'Idea of Journalism' and 'Practise' of Lee Yeung-Hi (리영희의 '언론사상'과 실천에 관한 연구)

  • Choi, Young-Mook
    • Korean journal of communication and information
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    • v.59
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    • pp.7-30
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    • 2012
  • Lee Yeung-Hi is one of the most influential intellectuals in the modern history of Korea. Lee Yeung-Hi was evaluated as "the Teacher of thought" or "Culprit of consciousness" over the past half century in Korea. At the core of Lee Young-Hi's philosophy and idea is humanism, freedom of express and social responsibility of intellectuals. Lee Yeung-Hi lived lifelong journalists, journalism professors. But the study of Lee Yeung-Hi's media activities and media practice, 'Idea of Journalism' are insufficient. This paper has deeply studied the 'Idea of journalism' and 'Writing of social practise' of professor Lee.

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현대 패션에 나타난 Eroticism 에 관한 연구-초현실주의와 팝 아트의 Eroticism을 중심으로

  • 이효진
    • Journal of the Korean Society of Costume
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    • v.23
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    • pp.111-130
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    • 1994
  • The purpose of this study was to illuminate eroticism represented din modern fashion. Art based on sex is very important like all of the other cultural values. But we feel that erotic art, neglected, suppressed , and persecuted for centuries, has an important contribution to make to the understanding of art, the social history of mankind, and human happiness and progress. It is our deep personal conviction that erotic art serves important social and therapeutic functions. Erotic art expresses the demand for sexual freedom-a freedom vital to individual happiness and mental well-being, And sexual freedom, in turn, cannot exist without a high degree of political and economic freedom as well. In that sense , erotic art came a truly revolutionaly message ; it demands no less than extension of freedom , not only in the sexual are, but in every sphere of social life. What is eroticism \ulcorner Eroticism must be distinguished from a mere animal reproduction . Eroticism is deeply rooted in the cultural tradition of myth, religion , customes and art. It also has a close relationship with psychological activities of our life. Eroticism is a kind of psychological revolution in the development of human civilization. Eroticism is related to different kinds of art, which express internal spirit of human especially Surrealism. Surrealism is above all a movement of the conquest and deepening of the unconscious. The exploitation of Freud's discoveries opended a new, practically unlimited path for artistic studies to Surrealism . Especially all theory of mental psychoanalysis a affected artists greatly in western art, Freud was appraised highly on his achievements by art critics in art history on his achievements by art critics in art history. As far as erotic subject matter was concerned, Surrealism provided a means of presentig it. Pop Art is not actually a movement , born at a specific time and place, nor is it an easy concept to define. The term first appeared in Great Britain during the fifties, when it referred, particularly in the decorative arts, to an inclination to go back and imitate the stereotyped images of the mass media : film, advertising , cartoons, and other popular consumer products. The eroticism expressed in Pop Art calls the modern's attentions to their devastated minds, taking advantage of the commercialized sex. Fashion has developed constantly reflecting the spiritual aspiration and social and cultural phenomona of man , and artistic steam. Eroticism in fashion is the style which expresses the internal meanings of sexuality through the texture, color, pattern , silhouette etc.

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A Study on the Characteristics of lawsuits between the Freedom of the Press and Individual Rights over the Investigative Reporting Program (TV탐사보도 프로그램의 법적분쟁에 나타난 특성 연구)

  • Lee, Seung-Sun
    • Korean journal of communication and information
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    • v.29
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    • pp.233-269
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    • 2005
  • The purpose of the study is to explore the characteristics of lawsuits against investigative reporting programs of the broadcast media. This study proposed three research questions: (1) what were the characteristics of court derisions on the investigative reporting programs? (2) what were the reasonings on which judges rely in the lawsuits for a right of reply? (3) what were the critical issues and how the libel laws were applied in balancing between the freedom of the press and the protection of individual rights. To answer these questions, the study employed quantitative and qualitative methods analysing 35 related cases. This study revealed that investigative reporting programs must deal with the Issues of 'public figures' and 'matters of public concern' to be protected under the freedom of the press. The study also found that the broadcast media must prove legitimate public interests and the truth of the facts to prevail in a case. In 1999, the Constitutional Court of Korea held that pubic figures in libel cases must be regarded differently from private figures. In accordance with the decision, the Supreme Court has applied differing criteria for public figures in libel cases. However, courts have not set a clear definition of the public figure yet. To advocate the freedom of the press, as the results of this study indicate, TV producers and journalists should behave lawfully in the course of newsgathering and provide the opportunities of reply for their news sources.

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MPEG-I Immersive Audio Standardization Trend (MPEG-I Immersive Audio 표준화 동향)

  • Kang, Kyeongok;Lee, Misuk;Lee, Yong Ju;Yoo, Jae-hyoun;Jang, Daeyoung;Lee, Taejin
    • Journal of Broadcast Engineering
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    • v.25 no.5
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    • pp.723-733
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    • 2020
  • In this paper, MPEG-I Immersive Audio Standardization and related trends are presented. MPEG-I Immersive Audio, which is under the development of standard documents at the exploration stage, can make a user interact with a virtual scene in 6 DoF manner and perceive sounds realistic and matching the user's spatial audio experience in the real world, in VR/AR environments that are expected as killer applications in hyper-connected environments such as 5G/6G. In order to do this, MPEG Audio Working Group has discussed the system architecture and related requirements for the spatial audio experience in VR/AR, audio evaluation platform (AEP) and encoder input format (EIF) for assessing the performance of submitted proponent technologies, and evaluation procedures.

Evaluation system and method of 6 degree of freedom audio reproduction technology (6 자유도 오디오 재현 기술의 평가 시스템 및 방법)

  • Lee, Yong Ju;Lee, Mi Suk;Lim, Wootaek;Kang, Kyeongok;Lee, Taejin
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2020.07a
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    • pp.333-336
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    • 2020
  • 6 자유도 오디오 재현 기술은 사용자가 6 자유도를 가지는 콘텐츠 또는 응용에서 음향학적 주변 환경과 사용자의 위치에 맞는 오디오를 재현하는 기술로서, 가상 현실, 게임 등에 적용이 될 수 있다. 6 자유도 오디오는 기존의 고정된 위치에서 재생되는 채널 기반 오디오와는 다른 특징이 있어 오디오 재생 장치와 헤드폰 또는 스피커만으로 수행하던 기존의 오디오 청취 평가 방법으로 비교하고 평가하는 것이 불가능하다. 최근 MPEG 오디오 서브그룹에서는 6 자유도 오디오 재현 기술에 대한 표준화를 진행하고 있으며, 이를 평가할 수 있는 시스템도 함께 제시하고 있으며, 2019 년 12 월에는 제안한 시스템을 활용한 파일럿 테스트가 진행이 되었다. 본 논문에서는 MPEG 에서 진행한 파일럿 테스트 시스템과 평가 방법에 대하여 살펴보고, 본 기관에서 평가한 내용 및 결과에 대해 기술하며, MPEG 에서 제시한 평가 시스템이 6 자유도 오디오 재현 기술의 평가에 적절한지에 대한 의견을 제시한다.

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