• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2012.11a
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• pp.92-95
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• 2012

대한민국에서 3DTV 방송서비스는 더 이상 '미래방송서비스'가 아니다. EBS는 올해 4월 지상파 DTV 주파수에서 세계최초로 2D/3D 혼용방송서비스를 실시하였으며, 오는 10월 15일에는 APC(Automatic Program Controller)와 연동하여 방송스케줄에 따라 자동으로 3D 방송을 송출하는 시스템을 구축하여 2차 시범방송을 진행할 예정이다. 이렇게 3D 방송을 위한 기술적 준비는 차근차근 이루어지고 있음에 반하여, 3D 방송서비스에 대한 시청자의 호응은 그다지 크지 않다. 이것은 방송되는 3D 콘텐츠의 양과 질이 부족하기 때문으로 풀이된다. 이 같은 3D 방송서비스의 장애요소에 착안하여, 본 논문에서는 3D 콘텐츠 제작효율을 높이고, 만들어지는 3D 방송콘텐츠의 품질을 높이기 위한 하나의 방법으로서, 제작현장에서 활용할 수 있는 3D 콘텐츠 제작과 밀접한 관련이 있는 새로운 참조지표인 '입체충실도(Depth Fidelity)'를 정의하여 제안하고자 한다. 입체충실도를 도출하기 위해 우선 양안식(兩眼式) 3D 입체영상의 특징을 분석하였고, 시청자 체감 가상깊이를 계산하여 활용하였다. 또한 연구를 통해 도출한 입체충실도 계산 알고리즘이 적용된 EBS 입체계산기(Stereoscopic Calculator) 애플리케이션을 개발하여 안드로이드 스마트폰에서 이용할 수 있도록 함으로써, 카메라감독과 프로듀서 등 방송제작 현업 스태프들이 연구결과를 활용할 수 있도록 했다.

• Journal of Digital Contents Society
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• v.18 no.3
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• pp.429-434
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• 2017

VR technology has been repidly developing thanks to development of a huge amount of new contents as well as new devices optimized for the virtual environment. Businesses in the IT sector have already started focusing on virtual reality, which might be considered as the center of industry in the future, and concentrated their efforts on development of VR, hardware and technology. Also, development of various VR device would lead to prosperity of media contents based on VR, Still, cyber sickness remain a serious problem waiting for an appropriate solution. In this paper we discuss causes for cyber sickness, analyze the relationship between cyber sickness and reflex eye movement and propose guidelines for the process of producing contents. In addition, we show experiments analyzing the effect of the proposed measures for alleviating cyber sickness.

• Journal of KIISE:Computer Systems and Theory
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• v.31 no.9
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• pp.495-502
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• 2004

A rapid growth of the Internet user and rich media content cause an excessive server load and high network traffic, and thus it decreases the quality of service. A solution to this problem is to distribute the content on multiple replicated servers. However, in this circumstance, clients face additional task of selecting the best server to provide proper so${\gamma}$vice which clients request. This paper is intended to propose an adaptive server selection mechanism for a client request based on distance and server load. This will offer a fast and scalable service in response to the increase of massive and realtime multimedia content and contribute to floating a new business model of digital content service.

• Journal of Digital Contents Society
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• v.18 no.5
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• pp.911-921
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• 2017

The purpose of this study was to investigate the semantic network analysis to understand image contents and to examine the degree to which words, word clusters contributed to the formation of semantic map within image contents. For this research, from 1993 until 2016 the field of the image contents were collected for a total of 2,624 cases papers. The word appeared in Title analyzed the social network by using the R program of Big Data. The results were as follows: First, Research on 'education' in the field of image contents has decreased. Second, the role of 'media' in the field of image contents is changing. Finally, It is a change in the status of 'contents' in the field of image contents.

• The Journal of Society for e-Business Studies
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• v.15 no.3
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• pp.63-83
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• 2010

IPTV(Internet Protocol Television) is an innovation technology to lead the new media age. Internet protocol television (IPTV) is a next generation television converged with the Internet which are delivered portal services such as information search, games, movies, home shopping and banking. Generally, service quality affects to adopt or use these technologies. Quality of experience (QoE) is more issue to be considered than service quality because of the technological restriction and limitation that IPTV is accessed by the Internet. The QoE is defined as the cognitive and experienced quality measured with users through an experiment and is conceptually related to service quality. The objective of this paper is to suggest a methodology to measure the QoE of IPTV using a user testing. We find significant factors affecting QoE of IPTV through an exploratory study and measure QoE scores. We found the nine factors of graphics, picture, accuracy, access method, quality of contents, usability, security, and performance important for QoE. The QoE scores of picture, graphics, and quality of contents gained over the average score, but the overall score for IPTV service providers was not high and the QoE needs to be improved.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.307-312
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• 2012

For semantic search methods to provide more accurate results than keyword-based search in a logical representation that uses a knowledge base are being studied. Than most of the user to use formal query language and schema used to interpret the meaning of a user keyword. In this paper, we propose to expand the user query for semantic search. In the proposed system, user query expansion component and a component to adjust the results to interpret user queries to take advantage of the knowledge base associated with a search term. Finally, a user query semantic interpretation, the proposed scheme to verify the experimental results of the prototype system is described.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.212-221
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• 2017

This study was identify the effective factors on the subjective quality of life of the elderly. The data were collected on September 4, the subjects were 201 elderly who participated in the 1004day event in B metropolitan city. The data were analyzed by SPSS 20.0 program using descriptive statistics, t-test, ANOVA, Scheffe's test. Pearson's correlation coefficient and Stepwise Multiple Regression. The level of subjective quality of life was affected by general characteristics including education level(F=5.87, p=.001), living with whom(F=4.39, p=.005), perceived economic state(F=16.25, p<.001). The subjective quality of life of the elderly showed a positive correlation with subjective health status, social activity and family support. According to the result of multiple regression analysis, Factors affecting the subjective quality of life is subjective economic status, living with whom, family support and, social activities, it was explained by 23.6%. Based on these findings in order to improve the subjective quality of life of the elderly by developing improved family support programs and various social activities program proposes to apply.

• The Journal of the Korea Contents Association
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• v.20 no.10
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• pp.411-423
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• 2020

The purpose of this study was to examine the association between metabolic syndrome and its components and health-related quality of life in Korean adults. Metabolic syndrome defined in accordance with NCEP-ATP III, and HRQOL was evaluated using EQ-5D. Data on 16,657 adult, extracted from Korean National Health and Nutrition Examination Surveys in 2016-2018, were analyzed and showed that 34.3% of subjects were metabolic syndrome, with males higher than females. The average score of HRQOL was 96.7 for men and 94.5 for women. Multiple logistic regression analysis was results, The OR of impaired HRQOL in women who metabolic syndrome was 1.27(95% CI: 1.09-1.46) compared to who women without metabolic syndrome. Among the components of metabolic syndrome, abdominal obesity (OR=1.72, 95% CI: 1.50-1.97) and high blood pressure (OR=1.26, 95% CI: 1.06-1.50) were associated to impaired HRQOL. But, there were no significant in men. In conclusion, In order to improve women's HRQOL, it suggests that an approach strategy is necessary to reduce the risk factors of metabolic syndrome, which take into account women's characteristics.

• The Journal of the Korea Contents Association
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• v.16 no.5
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• pp.477-487
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• 2016

This study attempts to comprehensively evaluate differences in sociodemographic characteristics, health behavior, disease morbidity, medical care and health-related quality of life of medical aid beneficiaries and health insurance beneficiaries. To achieve this, this study analyzes primitive data of community health survey that each health center had recently conducted in 2013. Study socioeconomic characteristics, health behavior, disease morbidity, medical care showed that various factors affecting health-related quality of life. It was found that medical aid beneficiaries showed lower health related-quality of life than health insurance beneficiaries because not good socioeconomic characteristics, health behavior, disease morbidity, and medical care and even as a comparative result after controlling socioeconomic characteristics, it was found that medical aid beneficiaries health-related quality of life was lower because of not good health behavior, disease morbidity, and medical care. Therefore, to improve health-related quality of life in medical aid beneficiaries as effectively as possible, improving mental health including managing chronic disease and stress and depression and daily living activities is above all important and our national concern with developing systematic program and policies focusing on health promotion behaviors such as moderate drinking habits and regular exercise and eating habits is required.

• The Journal of the Korea Contents Association
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• v.15 no.10
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• pp.253-266
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• 2015

The purpose of this study, regarding the effect of the marriage immigrant women's marriage adaptation living in urban and rural areas on their quality of the life, is to analyze whether there are any differences in the moderating effect of support from spouses and families for different areas of residence. This is in order to serve as the preliminary data for preparing intervention strategies that are suited to different areas of residence, so that the quality of life of marriage immigrant women may be improved. This study is a correlational research that targeted 304 marriage immigrant women living in urban and rural areas (148 in urban areas, 156 in rural areas). The study revealed that the support from spouses and families, marriage adaption, and the quality of life were lower in rural than in urban areas and that support from spouses and families, and marriage adaptation had a significant positive correlation for all areas of residence. Also, there was a moderating effect of support from spouses and families in the effect relationship between marriage adaptation and the quality of life. Also, it appeared that this moderating effect was more important in rural than in urban areas. On the basis of the results of this study, we propose that customized intervention strategies for each area of residence be developed so that regardless of the area, migrant women will be able to lead a marriage well and live a fulfilling life.