• 프린팅코리아
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• s.23
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• pp.168-171
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• 2004

'Humamnism thru Digital' 디지털 세상이 목표로 하는 이상향의 모습이다. 그런데, 누구에게나 그런 건 아닌가보다. 얼마전 가벼운 웃음을 짓게 하며 인구에 회자된 하나의 TV광고를 떠올려보자. 광고는 저녁 무렵 퇴근 길에 남편이 시장에 들러 생선가게 앞에서 생선을 고르는 장면으로 시작한다. 이것 저것 고르다가 아내에게 핸드폰으로 전화해 생선을 보여주고 선택하게 한다. 옆에서 이를 지켜보던 생선가게 주인할머니가 의아스런 눈빛으로 손님을 바라보자, 손님이 설명해준다. '디지털 세상이잖아요' 그에 할머니, 갸우뚱하며 한마디 던지는데, "돼지털?" 이란다. 제대로 알아듣지 못한 것이다. 젊은 남편에게는 '디지털' 인 것이 할머니에겐 '돼지털'일 뿐이다. 모든 이에게 디지털은 아닌 것이다.

• Korea Information Processing Society Review
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• v.11 no.3
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• pp.46-54
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• 2004

최근 첨단 정보통신 기술의 급격한 발전과 함께 브로드밴드(Broadband) 인터넷 환경이 널리 보급되었고 이에 따라 인터넷 이용자의 수도 폭발적으로 증가하였다. 또한, 가정 내 PC 보급률이 급격하게 상승하고 있으며. 이와 함께 DVD. 디지털 TV, PDA. 디지털 카메라, 휴대폰 등 디지털 가전기기의 보급률도 꾸준히 증가하고 있다. 이와 같은 인프라를 기반으로 하는 디지털홈 관련 기술분야는 최근 우리나라를 이끌어갈 성장 동력 중 하나로 선정되면서 관심이 집중되고 있다. (중략)

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.45 no.2
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• pp.18-25
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• 2008

The current display systems including TVs are going digital and large-sized, and high visual quality of those systems becomes a very important selling point in the current display system market. Thus, various researches have been carried out for enhancing the visual quality of digital display systems. One of the important digital image(or video) enhancement techniques is sharpness enhancement, and it is generally based on a transient improvement technique that reduces the edge transition time. However, this technique often generates overshoot and undershoot, which cause undesirable pixel-level changes around the transient improved edge. In this paper, we propose a new nonlinear filter-based adaptive shoot elimination method for effectively suppressing the overshoot and undershoot that occur in the transient improvement, so that we can obtain visually sharper and clearer digital images(or videos). The proposed method uses two orthogonal directional min/max nonlinear filters with an adaptive shoot elimination scheme in order to effectively suppress the visually sensitive overshoot and undershoot. Experimental results show that the proposed method suppresses the overshoot and undershoot almost perfectly while maintaining the effect of the transient improvement. The applications of the proposed method include digital TVs, digital monitors, digital cameras/camcoders, portable media players(PMP), etc.

• Progress in Medical Physics
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• v.27 no.1
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• pp.1-7
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• 2016

In this work, we considered a compressed-sensing (CS)-based image deblurring scheme with a total-variation (TV) regularization penalty for improving image characteristics in digital tomosynthesis (DTS). We implemented the proposed image deblurring algorithm and performed a systematic simulation to demonstrate its viability. We also performed an experiment by using a table-top setup which consists of an x-ray tube operated at $90kV_p$, 6 mAs and a CMOS-type flat-panel detector having a $198-{\mu}m$ pixel resolution. In the both simulation and experiment, 51 projection images were taken with a tomographic angle range of ${\theta}=60^{\circ}$ and an angle step of ${\Delta}{\theta}=1.2^{\circ}$ and then deblurred by using the proposed deblurring algorithm before performing the common filtered-backprojection (FBP)-based DTS reconstruction. According to our results, the image sharpness of the recovered x-ray images and the reconstructed DTS images were significantly improved and the cross-plane spatial resolution in DTS was also improved by a factor of about 1.4. Thus the proposed deblurring scheme appears to be effective for the blurring problems in both conventional radiography and DTS and is applicable to improve the present image characteristics.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.578-591
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• 2018

This study is to find out what are the factors influencing upon the convergent TV viewing experiences. Socio-demographic variables are identified as the most influential ones. Viewing modes are more influential than the media utilization factors. Comparing the detailed dimensions of TV viewing experiences, time and content selectivity are more influenced by TV viewing modes, while sociability and interactivity are more affected by socio-demographic variables relatively. This study has academic significance in that it is an exploratory empirical study on factors influencing on the TV viewing experiences.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.86-93
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• 2012

The emergence of cable TV, satellite broadcasting and IPTV provides viewers with a variety of TV programs. However, viewers' desire for watching their favorite TV program at convenient time has increased because of insufficient spare time. As an increase in smart phone market has accelerated an entry into "the age of smart network media" since 2009, mobile media suggests services connected to other digital devices. Recently, there has been growing interest in TV controling system of smart phone. Therefore, the present study aims to provide an concept of the smart phone application which recommends contents of TV program by analyzing personal watching pattern. To suggest detailed direction of the interaction and UI design, we analyzed previous research and examples of TV controlling applications and products. In addition, public opinion survey was carried out to rationalize this study and suggest suitable UI structure.

• Journal of Broadcast Engineering
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• v.2 no.2
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• pp.182-193
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• 1997

In this paper, we propose technical and structural solutions for various problems in two-way digital communication services in CATV networks by actual field tests. The two-way digital communication services include VOD, video conferencing, distance learning, interactive game and internet service. We investigate the quality of T -1 level 0.544 Mbps) upstream digital signal while varying the number of subscribers in three different cells in accordance with ITU-T G.821. Based on this investigation, several ways to cope with the problems identified are suggested.

• Journal of Broadcast Engineering
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• v.12 no.5
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• pp.401-413
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• 2007

The birth of a new mobile medium of communication In 2005, the DMB (Digital Multimedia Broadcasting), was celebrated for the mobile and asynchronous personal medium. But now, the most film- & video-channels of this epoch-making medium of communication combine with the rebroadcasting of long play film for cinema oder TV series. The purpose of this study is thus to point out the disharmony between new mobile medium and the old, recycled contents and to propose as an alternative content the digital shortshort moving images.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.152-156
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• 2008

The public concept of digital broadcasting is all about anytime, anywhere and anyone. It implies that the viewing rights of digital broadcasting have to be blessed with anyone, in anywhere and at anytime. Here anyone connotes the notion included visually and hearing impaired viewers as well as the non-disabled. Considering the current circumstance, which is a milestone of digital switchover by 2012, it seems destitute of the accessibility for the disabled. Hence this study is to manage the embodiment of broadcasting accessibility in digital interactive services originated from W3C for impaired viewers in order to cotton to the unlimited contents on digital television.

• Journal of Digital Contents Society
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• v.18 no.1
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• pp.79-85
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• 2017

Since Korea started producing original animations targeting children, market of character for children has been led by TV animation with continuous broadcasting and OSMU. With a successful fondation in animation toy industry, its market is expanding to film industry, at the same time, brings positive effect for benefit of domestic animation. Therefore, this study researched viewing rate of children's TV animation and analyzed character storytelling to help foster and grow the direction of future animation characters. For the analysis, I selected 20 animations with high viewing rate and analyzed the storytelling of 95 characters based on their roles. The results of this study are as follows: in children's animation appeared various types of characters helping each other to make the viewer learn socializing. In addition, character's external setting varied depending on its role. Moreover, in the characters' internal setting, the most frequently appeared keyword was leadership, however, their personality keyword varied depending on the role.