• The Journal of the Korea Contents Association
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• v.8 no.3
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• pp.75-85
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• 2008

Since the first interactive broadcasting of Skylife had been launched in S. Korean it has passed over 4 years. Subsequently the new digital broadcasting platforms, such as DMB, Mobile-TV, IPTV and so forth, are appearing between the keen rivalries. At the centre of diagram for new digital platforms there is positioned the interactivity. In order to cope with the limitation of contents on television, even Korean terrestrials have resolutely carried out interactive broadcasting as of 8th of June, 2006. Although the flamed competition of digital environment there are lacking in the public understanding and interests for interactive programmes on digital television. We can be analysed that it is difficult to acquire the viewer's satisfaction for guessability in spite of our governmental efforts. Here it presents the problematic results obtained by analysing both quantitative and qualitative data from the usability test for the current interactive programme in centre of the viewer.

• Journal of Broadcast Engineering
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• v.17 no.4
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• pp.695-706
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• 2012

The purpose of this paper is to propose a service system for a digital hologram video, which has not been published yet. This system assumes the existing service frame for 2-dimensional or 3-dimensional image/video, which includes data acquisition, processing, transmission, reception, and reconstruction. This system also includes the function to service the digital hologram at the viewer's view point by tracking the viewer's face. For this function, the image information at the virtual view point corresponding to the viewer's view point is generated to get the corresponding hologram. Here in this paper, only a prototype that includes major functions of it is implemented, which includes camera system for data acquisition, camera calibration and image rectification, depth/intensity image enhancement, intermediate view generation, digital hologram generation, and holographic image reconstruction by both simulation and optical apparatus. The proposed prototype system was implemented and the result showed that it takes about 352ms to generate one frame of digital hologram and reconstruct the image by simulation, or 183ms to reconstruct image by optical apparatus instead of simulation.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.354-359
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• 2008

This Audio-Visual Interactive Installation is composed of a video projection of a video Projection and digital Interface technology combining with the viewer's voice recognition. The Viewer can interact with the computer generated moving images growing on the screen by blowing his/her breathing or making sound. This symbiotic audio and visual installation environment allows the viewers to experience an illusionistic spacephysically as well as psychologically. The main programming technologies used to generate moving water waves which can interact with the viewer in this installation are visual C++ and DirectX SDK For making water waves, full-3D rendering technology and particle system were used.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.525-530
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• 2014

This experimental research explores the effect of screen size of smart media on viewer's evaluation and presence. For this experimental research, 2 groups of subjects composed of university students were exposed to TV document video clips which were shown by two different size of smart media, and evaluation and presence related questions were asked analysed. This research found that subjects exposed to large smart media showed higher degree of image aesthetic evaluation and presence than those exposed to small media. but the effect of screen size of smart media on viewer's program evaluation was not found. Through this study, screen size of smart media is main factor which has effect on image aesthetics and presence of TV documentary.

• Journal of Digital Contents Society
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• v.19 no.5
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• pp.907-916
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• 2018

This paper is an exploratory study on the acceptance of Chinese Internet entertainment personal broadcasting contents. After analyzing the factors affecting viewer satisfaction, we analyzed the relationship between these factors and viewer satisfaction on reuse intention. As a result of the survey, first, the information system quality has a significant effect on the viewer satisfaction of internet personal broadcasting. Second, indirect experience, entertainment pursuit, and social relationship have a significant effect on viewing satisfaction of internet personal broadcasting. Third, viewing satisfaction of internet personal broadcasting has a significant effect on reuse intention. These results are expected to help establish the marketing strategy of the company operating the Internet personal broadcasting and prepare the requirements to be provided by the host.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.597-614
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• 2001

Level 0: The Marekting Buzzword : □Confusion between DMU and Visualization □Having a Mobile Data Viewer/Analyser is Anyway a Prerequisite Level 1: Digital Pre-Assembly (DPA): □Building Digital Prototype before Physical Build □Usually a job for Packaging or Prototype Teams □Usually no time Left to take Feed-back into account before Actual Build Level 2: Design in Context: □All Designers within Car Maker do Local DMU before DPA Level 3: Design in Extended Context □Design in Context Expanded to Suppliers(omitted)

• Journal of Digital Contents Society
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• v.10 no.4
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• pp.485-492
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• 2009

In these days mobile handsets have come to be used at almost every user. The mobility of mobile devices and the performance improvement of the mobile networks have made this trend possible. As a great variety of mobile applications are published, the necessity of running large-scale mobile applications becomes greater than before. To accomplish this, the existing researchers have developed mobile cluster computing libraries like Mobile-JPVM. In this paper, we implement a compute-intensive Animated GIF generating application and its cell phone viewer software using Mobile-JPVM library. We find out by the real execution of our softwares on the KTF handsets that they can sufficiently run on cellular phones. Our Animated GIF generator and its viewer are going to be commercially used for the mobile fashion advertisement systems.

• Journal of Digital Contents Society
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• v.10 no.4
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• pp.625-632
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• 2009

In these days mobile handsets have come to be used at almost every user. The performance improvement of mobile devices and networks have made this trend possible. As a great variety of mobile applications are published, the necessity of running large-scale mobile applications becomes greater than before. To accomplish this, the existing researchers have developed mobile cluster computing libraries like Mobile-JPVM. In this paper, we implement a compute-intensive Animated GIF generating application and its cell phone viewer software using Mobile-JPVM library. We find out by the real execution of our softwares on the KTF handsets that they can sufficiently run on cellular phones. Our Animated GIF generator and its viewer are going to be commercially used for the mobile fashion advertisement systems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.87-90
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• 2010

최근 급속도로 보급되고 있는 스마트폰은 큰 화면과 터치 기능은 물론 GPS를 포함한 다양한 센서와 표현기능이 포함되어 있다. 이 연구에서는 대부분의 스마트폰이 제공하고 있는 풍부한 표현성능을 최대한 활용하여 작가의 의도가 독자에게 최대한 전달될 수 있는 디지털 만화 감성 뷰어와 그 저작도구에 대하여 연구하고 구현하였다. 스마트폰에 탑재된 뷰어에서 독자는 각 Cut의 장면 전환 효과, 진동, 사운드 효과 등을 통하여 효과적인 디지털 만화읽기를 할 수 있도록 하였다. 또한 이러한 기능들을 컴퓨터 비전문가인 만화저작자들이 쉽게 적용할 수 있는 저작도구를 구현하였다. 저작도구는 이러한 감성표현 기능 외에도 화면전환 효과와 씬플로우(scene-flow)도 작가의 의도대로 적용할 수 있도록 하였다. 뷰어는 Apple, Android, Windows Mobile과 Symbian 운영체제에 대해 개발하였으며, 저작도구는 Windows XP 환경에서 개발하였다. 이 연구에서 개발된 뷰어와 저작도구가 상용화되면 현재 일본제품이 독점하고 있는 국내 이동통신의 디지털 만화 시장에 적용될 것이며, 디지털 만화의 앱스토어로 발전될 수 있을 것이다.

• Journal of Broadcast Engineering
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• v.7 no.2
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• pp.88-95
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• 2002

According to an evolution of digital broadcasting, it is possible that terrestrial and satellite broadcasting media provide multi-channel services. CATV and satellite media have been also extended to hundreds of channels. As the result of channel expanding, viewers came to select lots of channels. But it is difficult that they select the favorite channel among hundreds of channels. In this paper, we propose an efficient automatic method to recommend channels and programs on a viewer's preference in a multi-channel broadcasting receiver like a Set ToP Box(STB). The proposed algorithm selects channels based on the following method. It makes and saves user history data by using MPEG-7 MDS based on the program information a viewer had watched. It recommends programs similar to a viewer's preference based on user history data. It selects the channel in the recommended genre based on the viewer's channel preference. The experimental result shows that the proposed scheme is efficient to select the user preference channel.