• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.11a
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• pp.18-20
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• 2020

본 연구에서는 고차원 데이터에 대한 차원축소 및 군집 분석과 같은 비지도 학습 알고리즘에 대해 알아보기 위해서 얼굴 이미지 데이터 셋을 사용한다. 얼굴 데이터 셋에 대하여 주요 비지도 학습 알고리즘을 이용하여 실시간으로 클러스터링하고, 그 성능을 비교한다. 비디오에서 추출된 영상 속의 7명의 인물에 대하여 Scikit-learning 라이브러리에서 제공하는 클러스터링 알고리즘과 더불어 주요 차원축소 알고리즘(Dimension Reduction Algorithm)을 사용하여 총 10개의 알고리즘에 대하여 분석한다. 또한, 클러스터링 성능 검사를 통해 알고리즘의 성능을 비교해보고, 이를 통하여 앞으로의 연구 방향에 대해 고찰한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.637-639
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• 2022

장면 전환 검출을 위해 히스토그램 등 단일 특성만 고려할 경우 움직임이 많은 영상과 조명의 변화가 다양하거나 단조로운 색상으로의 장면 전환이 일어나는 영상에 검출이 어렵다는 단점이 있다. 이를 개선하기 위해 프레임 간 색상 히스토그램을 비교 후, SURF를 적용하는 방법을 제안한다.

• Electronics and Telecommunications Trends
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• v.39 no.2
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• pp.43-53
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• 2024

The media environment is rapidly evolving to be tailored to viewers using personal mobile devices in accordance with technological evolution and changes in social structures. Broadcast media technology is also advancing to enable new services, including data casting, in various reception environments beyond the existing fixed environment and one-way audio/video content services. In addition, technologies to increase the transmission capacity to accommodate next-generation large-capacity media content as well as communication network utilization and convergence technologies are being developed to facilitate interactive services and expand the broadcasting coverage. We discuss the current status and future prospects in broadcasting technology for terrestrial and mobile communication systems and analyze broadcasting technology elements for upcoming media environments relying on generative artificial intelligence.

• Applied Chemistry for Engineering
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• v.16 no.5
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• pp.595-602
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• 2005

Ionic liquids (ILs) are the ionic salts pertaining to liquid-state at lower temperature than $100^{\circ}C$. ILs have attracted attention as new media because of their peculiar chemical, physical or electrical properties such as low volatility, nonflammability, liquid-phase stability at high temperature, high ability in solvating organic, inorganic or polymeric materials, and high ionic conductivity. Since the properties can be modified by assembling the pair using various anions and cations, ILs are often called designer solvents. In addition, ILs have been expected as new green media to replace the volatile organic solvents, which have been widely used in chemical, energy, material, and electronic industries, as well as to enhance the reaction activity and selectivity. In this review paper, the structures, properties, applications, and technology trend of ILS are introduced.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.635-638
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• 2009

The latest, Digital art is attempt new field's Art, that is utilize variously digital media image, sound, simulation, 3D holography. A large number of Digital Art is contact with the audiance in pavilion(limit place and limit period). However, It will be possible, If Digital Art can use place digital form media even there are indoor, outdoor, anywhere. This paper analyze reciprocal action for utilize Digital Art in indoor space design, and this paper study expression about indoor design base of interactive.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.911-918
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• 2023

This paper analyzed technologies related to video and sound device manufacturing closely related to media images, divided applicants into companies, research institutes, universities, individuals and the public, and conducted technical statistical analysis, collective intelligence analysis, and open innovation analysis. It is necessary to express innovative ideas through technology in research institutes or universities, and efforts are needed to expand technologies in the media field in universities. Looking at the contents of patents actually filed, patents filed by companies or individuals were mostly related to media technology, and patents filed by universities and research institutes were mostly related to media content. This means that hardware technology patents should be developed extensively and in-depth in an inseparable relationship between media technology and content, and should be a driving force for software content to play a more diverse and creative role.

• Textile Coloration and Finishing
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• v.23 no.1
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• pp.35-42
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• 2011

For high quality DTP products, it is important to optimize the parameters of media, pre- and after-treatment, ink, printer, etc. This study investigated the effect of types of fabrics(media) as a DTP parameters. Especially, the effects of media properties such as yarn twist and knitted fabric structure, on printability and color difference were examined. Two types of cotton yarn twist(830 and 1630 twist/meter) and five knitted structures of media were prepared with a single circular knitting machine. The K/S values of hard-twist samples were higher than those of normal-twist samples in every media structures. It is more effective to use the knitted fabrics of a hard-twist yarn to obtain dark color in the printing above input level value 60 where the printability improvement was most pronounced in case of plain structure. Among the five media structures a plain structure was the highest and that of corduroy was the lowest in terms of K/S values. Also ${\Delta}E$ values and lightness of the hard-twist yarn samples were smaller than that of normal-twist yarn samples when ${\Delta}E$ values were tested by using a standard of a normal twist yarn sample with a plain structure, which was increased in the case of corduroy structure.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2006.11a
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• pp.141-145
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• 2006

The development of information & communication technology in 21st century along with the mass media In 20th century, the influence of state-of-art culture in our society rapidly increased in these days. This state-of-art culture makes the world becomes single-channeled by network, and there is a big change not only in human life but also in concept and understand for art and space. The development of digital paradigm and media technology is exerting a strong influence on the Ubiquitous computing environment that is being drawn great interest. The ubiquitous is concerned as expansion of media art, and the interactive art which is part of media art has the similarity with the ubiquitous computing environment. In this study, the possibility of connection between the territory of ubiquitous environment which is recently focused and has strong interrelation feature, and the territory of interacting will be examined. Furthermore, possibility of new space design work through seeking the possibility of connection between two territories will be estimated.

• Journal of Industrial Technology
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• v.25 no.A
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• pp.133-139
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• 2005

In this study, as MBBR(Moving Bed Biofilm Reactor) process using waste tire media is suggested for retrofitting with advanced wastewater treatment and the removal property of organic matter and nutrient and the capacity of media are evaluated through long-term operation with pilot plant following seasons, the application capacity of retrofitting with MBBR process to a existing wastewater treatment is studied. As a result of the long-term operation of the process, it is proved that there is no loss and abrasion of media, and also that it is possible to secure the sufficient attached bio-mass. The values of organic matter and nutrient in effluent are suitable for the strict discharged water quality standards in every season including winter.

• Journal of Information Technology Applications and Management
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• v.16 no.1
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• pp.169-183
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• 2009

The purpose of this research, based on the Media Selection Theory, the Technology Acceptance Model, and the Social Influence Theory, is to investigate the influential factors that affect media selection in banking transactions. Analyses showed that for location sensitive bank windows and ATMs(automatic teller machines), defined as offline-based transaction channels, convenience was the variable affecting media selection. However, in the case of online media not related to location, (phone banking, internet banking, and mobile banking) reliability was the significant variable influencing use. The findings show that banking organizations may benefit from identifying traits of media affecting use, and should differentiate customer services for competitive advantage.