• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.7
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• pp.1672-1686
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• 2013

In this paper, we propose a hybrid super-resolution algorithm robust to cut-change. Existing single-frame based super-resolution algorithms are usually fast, but quantity of information for interpolation is limited. Although the existing multi-frame based super-resolution algorithms generally robust to this problem, the performance of algorithm strongly depends on motions of input video. Furthemore at boundary of cut, applying of the algorithm is limited. In the proposed method, we detect a define boundary of cut using cut-detection algorithm. Then we adaptively apply a single-frame based super-resolution method to detected cut. Additionally, we propose algorithms of normalizing motion vector and analyzing pattern of edge to solve various problems of existing super-resolution algorithms. The experimental results show that the proposed algorithm has better performance than other conventional interpolation methods.

• Journal of the Korean association of regional geographers
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• v.19 no.3
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• pp.494-513
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• 2013

In this study, a transnational social space which emerges in a rural village of the northern Vietnam called 'Korean Village' is analyzed. The immigrant women of whom the spouses are Korean were forming transnational network with family members through which frequent and active communications took place. At the same time materialistic exchanges were occurring by means of remittance. Like most rural areas where up-to-date life patterns co-exist with outdated ones, the studied region was turning into a transnational social space under the influence of indigenous locallity, culture and other economic factors. Women were found to play a virtual role as resonator in practicing the transnational activity of migration. With the migration routes getting more and more solidified, the evolution of the transnational social space and the role of resonator, the form of transnational migration which makes involved young women look like a sacrifice is ceaselessly expanding around a specific region. This is noticeable because a rural village seemingly far away from internationalization is not only becoming the transnational social space but also a stage of its evolution.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.7
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• pp.1111-1120
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• 2013

Zizania latifola has used for folk medicine in Korea. It is effective in treating skin trouble and sensitivity skins. The purpose of this study was to develop high valuable types of bath preparation of Zizania latifolia. The natural materials were manufactured by the mixed ratio of Zizania latifolia. Product was manufactured by the mixed ratio of Zizania latifolia and 3 natural materials. Green tea was highest in sensory evaluation as similar with Zizania latifolia. optimum condition of mixed ratio was adaptive 50% Houttuynia cordata, 30% green tea with 20% Artemisia vularis. Product's sensory evaluation was showed best in mixing 40% and Zizania latifolia extract 60%. There were optimal condition for manufacturing of cleansing. Therefore, The development of a bath preparation used by Zizania latifolia is very useful for manufacturing cleansing. We suggest that it help for improve skin trouble and make healthy skin.

• Korean Journal of Food Science and Technology
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• v.28 no.1
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• pp.105-108
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• 1996

Microbial and sensory changes during storage at $4^{\circ}C$ of Angelica keiskei juice pressurized at $5700\;kg_f/cm^2$ for 7 min, an optimum process condition suggested from the previous study, were investigated. Pseudomonas, which is responsible for putrefaction of refrigerated food, was totally inactivated by pressurization. E. coli and coliform bacteria were also completely inactivated. According to the sensory evaluation data, high hydrostatic pressure does not change sensory characteristics of freshness, sweetness and bitterness (P<0.05). However, after 8 day storage at $4^{\circ}C$, pressurized Angelica keiskei juice showed higher freshness than untreated control. These results indicated that the high hydrostatic pressure can be used as an effective process method for preserving Angelica keiskei juice.

• Journal of the Institute of Convergence Signal Processing
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• v.22 no.4
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• pp.156-163
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• 2021

Attention mechanisms have been used in deep learning-based computer vision systems, including single image super-resolution (SISR) networks. However, existing SISR networks with attention mechanism focused on real image super-resolution, so it is hard to know whether they are available for CG or VR images. In this paper, we attempt to apply a recent attention module, called balanced attention mechanism (BAM) module, to 12 state-of-the-art SISR networks, and then check whether the BAM module can achieve performance improvement in CG or VR image super-resolution. In our experiments, it has been confirmed that the performance improvement in CG or VR image super-resolution is limited and depends on data characteristics, size, and network type.

• Journal of Digital Policy
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• v.1 no.2
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• pp.53-59
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• 2022

In this paper, we proposed a method using sub-edge information extracted through a hierarchical structure in the process of generating super resolution based on a single image. In order to improve the quality of super resolution, it is necessary to clearly distinguish the shape of each area while clearly expressing the boundary area in the image. The proposed method assists edge information of the image in deep learning based super resolution method to create an improved super resolution result while maintaining the structural shape of the boundary region, which is an important factor determining the quality in the super resolution process. In addition to the group convolution structure for performing deep learning based super resolution, a separate hierarchical edge accumulation extraction process based on high-frequency band information for sub-edge extraction is proposed, and a method of using it as an auxiliary feature is proposed. Experimental results showed about 1% performance improvement in PSNR and SSIM compared to the existing super resolution.

• Journal of the Korean Society of Hazard Mitigation
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• v.10 no.4
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• pp.55-61
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• 2010

In this study, the construction trend of skyscraper was summarized chirologically to examine the characteristics and current, and the issue in evacuation was examined through the case of fire breakout in skyscraper. Based on this, the type of evacuation using the emergency stairway during the fire breakout in skyscraper was decided on six types and empirical experiment was conducted for each type. The issues on the participants that participated in the emergency stairway evacuation experiment from the fire breakout in skyscraper and the difficulties in the evacuation were qualitatively evaluated to summarize each element of hindrance to summarize basic information on emergency stairway evacuation.

• Korean Journal of Plant Resources
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• v.24 no.5
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• pp.514-520
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• 2011

This study describes conditions for the mass production of mutant hairy root lines by co-cultivation with A. rhizogenes harboring the activation tagging vector pHC7. Various sources of explants were subjected to genetic transformation with A. rhizogenes to determine optimum conditions and cultivar for the highest frequency of hairy root formation on explants. Hairy root formation also were investigated in transformed hairy roots grown in various culture media. Finally, a total of approximately 2,500 lines of hairy root mutants were produced in this study. A managing system for metabolomics in hairy root lines also were established. These hairy root lines will be useful to determine functions of genes relating biosynthesis pathway of secondary metabolites.

• Journal of Korean Association for Spatial Structures
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• v.6 no.2 s.20
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• pp.77-83
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• 2006

The planning process of complex projects in tall building is characterized by the cooperation of many involved specialists and by a high degree of information exchange. In order to improve the quality of the structural design of tall buildings, information of different involved partners in the planning process has to be integrated. This paper aims to introduce a concept of the integrated structural design for the tall building using STEP(Standard for the Exchange of Product Model Data). In this study, the entities of mass, column shortening, and serviceability evaluation for structural design in tall buildings are proposed.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.271-276
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• 2004

In recent years, many high-rise buildings have been constructed for the purpose of redevelopment of urban environments in Korea. However, generally the construction durations do not increase in proportion to the number of the floors or the height of the building. So new materials, equipments, and methods are applied to high-rise building construction in order to overcome this problem. In most cases, applying these new resources is considered mainly as the technical issue, and the organizational aspects of this is frequently overlooked. This study discussed the performance variance in time and identified the causes of time variance in high-rise building construction from organizational viewpoint .