• Journal of Korea Multimedia Society
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• v.11 no.2
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• pp.247-256
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• 2008

Recently, natural disasters like flooding damages have frequently occurred as to typhoons and local downpours affected by the climate changes. Many researches have actively been studied in analysing runoff models, the verification of their parameters, and the inflow on surfaces in order to lessen the damages. However, much time and effort needs in generating input files of the models in most current researches. Therefore, in this paper we develop a system for generating a simulation input data automatically. This system is connected to the EPA-SWMM based on the spatial data in the UIS systems and consists the simulation module for analysing urban flooding and the SWMM simulator module. Also, we construct a prototype using a range of regular inundation to generate a simulation input file. This system gives advantages showing inundation areas based on the map viewer as well as lessening errors of input data and simulation time.

• Journal of Institute of Control, Robotics and Systems
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• v.8 no.9
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• pp.776-787
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• 2002

Automation of welding process in shipyards is ultimately necessary, since the welding site is spatially enclosed by floors and girders, and therefore welding operators are exposed to hostile working conditions. To solve this problem, a welding mobile robot that can navigate autonomously within the enclosure has been developed. To achieve the welding task in the closed space, the robotic welding system needs a sensor system for the working environment recognition and the weld seam tracking, and a specially designed environment recognition strategy. In this paper, a three-dimensional laser vision system is developed based on the optical triangulation technology in order to provide robots with 3D work environmental map. Using this sensor system, a spatial filter based on neural network technology is designed for extracting the center of laser stripe, and evaluated in various situations. An environment modeling algorithm structure is proposed and tested, which is composed of the laser scanning module for 3D voxel modeling and the plane reconstruction module for mobile robot localization. Finally, an environmental recognition strategy for welding mobile robot is developed in order to recognize the work environments efficiently. The design of the sensor system, the algorithm for sensing the partially structured environment with plane segments, and the recognition strategy and tactics for sensing the work environment are described and discussed with a series of experiments in detail.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.10 no.1
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• pp.9-21
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• 2014

This study aims to help utilize the dental treatment institutions for the disabled and provide high quality of medical services in the future by identifying the satisfaction factors for the patients of the dental clinics for the disabled. As a study method, surveys were completed 200 patients who visited the dental hospital for the disabled. Among these, the surveys from 187 patients were statistically analyzed. The main findings of this study are as follow. Since the study showed that there were differences in the satisfaction factors between the disabled and non-disabled people, subsequent studies needs to be done to develop measuring tools to accurately accommodate the satisfaction factors of the disabled. In addition, as the low spatial accessibility in terms of distance and location was found in this study, more dental treatment institutions for the disabled are required. In the meantime, the survey results found that the most satisfactory aspect was the lower treatment cost compared to other clinics, and that the most important factor when choosing a clinic was also treatment. In addition, given the fact that the group that took a prosthetic treatment, which was non-insured treatment, showed higher satisfaction compared to the group that did not, it suggests that the economic burden plays an important role for the dental treatment of the disabled.

• Journal of the Korean housing association
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• v.27 no.6
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• pp.65-75
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• 2016

Activities in the dwelling are inseparable from housing design. Spatial features often result from patterns of activities that take place within the dwelling. Activities are further elaborated to affect house plans, furniture, arrangement, and equipment. However, discrepancies still exist between housing design and behavior, where housing design often fails to accommodate activities and behavioral dimensions within the family and the dwelling. This paper addresses the relationship between dwelling activities and housing design by means of a qualitative study that aims to understand the needs of the Indonesian dwelling through activity analysis. To do so, the research adopts a methodology that involves collecting data from measurements of the house, house plan analysis, and photographs, in addition to in-depth semi-structured interviews with families. Taking Bandung as a case study, 9 houses and families were selected as respondents that share similar family life-cycles, number of family members, and building size. The findings from the study suggest that spacious and open plans are preferred by the family, while maintaining family privacy. Guest areas are used to host formal guests and to restrict visitor access in the house. Service areas such as kitchens and laundry areas are the core areas for household activities for cooking, laundry, and drying. To meet social activities such as community gathering, open plan design is necessary to allow flexibility of furniture reconfiguration to accommodate extra guests.

• International Commerce and Information Review
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• v.17 no.3
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• pp.59-70
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• 2015

The recent global economic crisis and intensifying competition among Northeast Asian neighbors, China and Japan are changing in the foreign policy coarse of growth uncertainty, the domestic enterprise's growth power is faced serious limitations, Therefore, it's increasing that making new growth engines for the creative economy in order to achieve sustainable growth and continue to lead the Global Trade and human resources development and training needs for social entrepreneurship through the creation usually related to human resources. However, the creation of institutional entrepreneurship support system based on the fusion construct and cultured creativity through entrepreneurship education, such as mental challenges proactively apply the various ordinary area and several temporal spatial constraints can be utilized. There follows are in this study and time to entrepreneurship education without restrictions in place were the impact of the most important elements are enterpreneurship in the online entrepreneurship education and entrepreneurship. As the result of analysis, online learning environment have a positive impact on entrepreneurship. I hope that a global powerhouse through youth entrepreneurship would like to contribute IT power nation.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.461-468
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• 2008

The needs for visualizing interactive multimedia contents on portable devices with realistic three dimensional shapes are increasing as new ubiquitous services are coming into reality. Especially in digital fashion applications with virtual reality technologies for clothes of various forms on different avatars, it is required to provide very high quality visual models over mobile networks. Due to limited network bandwidths and memory spaces of portable devices, it is very difficult to transmit visual data effectively and render realistic appearance of three dimensional images. In this thesis, we propose a compression method to reduce three dimensional data for digital fashion applications. The three dimensional model includes animation of avatar which require very large amounts of data over time. Our proposed method utilizes temporal and spatial coherence of animation data, to reduce the amount. By grouping vertices from three dimensional models, the entire animation is represented by a movement path of a few representative vertices. The existing three dimensional model compression approaches can get benefits from the proposed method by reducing the compression sources through grouping. We expect that the proposed method to be applied not only to three dimensional garment animations but also to generic deformable objects.

• Korean Journal of Remote Sensing
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• v.31 no.3
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• pp.245-253
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• 2015

According to wide civilian utilization of multi sensor satellite information, practical needs for fusion processing and interoperable operation with multiple remote sensing imageries within distributed remote server are being increased. For this task, OGC standards with respect to satellite images and its derived products are crucial factors. This study is to present an applicability of WPS through testing implementation of image processing algorithm. Open sources such as Geoserver and OTB were used linked to WPS application for implementation. WPS can be solely used for web service supporting geoprocessing algorithm, but technical consideration compromising with other important standard protocols including WMS, WFS, WCS, or WMTS is necessary to build full featured geo web for remote sensing imageries. It is expected that application of these international standards for geo-spatial information is an important approach to produce value-added results by interoperable processing between interorganizations or information dissemination containing practical satellite image processing functionalities.

• Proceedings of the KSRS Conference
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• 1999.11a
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• pp.355-362
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• 1999

With the ready access to the high resolution satellite image data, users of and areas covered by satellite image data are constantly on the rise world-wide. Korea will also be able to take full advantage of the satellite data once the KOMPSAT is successfully launched. Harmonizing satellite data production and application technology and users' needs, along with the guiding policy is essential for promoting satellite data use. Up to now, the Korean government has mainly concentrated on developing production technology for the satellite units. However, the imminent task of independent satellite data production demands a promotion policy for satellite data use. In this context, the policy is defined as an important medium for identifying the role and status of satellite image information at the national level and also Preparing the legal as well as systematic foundation for producing, building, distributing, and packaging satellite data. For example, in the countries with the advanced satellite technology, such as the United States, the United Kingdom, and Australia, digital ortho image and digital elevation model (DEM) are mandatorily included in the National Geographic Framework Data through policy measures. In addition, in order for the efficient provision of the satellite data, separate organization or agency is being in operation for the exclusive production and distribution of the satellite data. The present paper aims to examine the role and status of the satellite data as well as their current status and problems in Korea in reference to the National Spatial Data Infrastructure, and finally to provide the policy directions to promote the satellite data use in public sector on the basis of the preceding analyses.

• Journal of Korean Society for Geospatial Information Science
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• v.18 no.3
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• pp.75-81
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• 2010

Existing studies on the bicycle road were mostly for the promotion of bicycle road through the creation of bicycle road. However, as the gradually increase of bicycle users, it has been required service based on low carbon green growth in order to promote the use of bicycles which are green means of transportation. Analysis of existing bicycle use information is mainly based on calculating the amount of exercise, so the diverse needs of bicycle user does not accommodated. Therefore, in this study, it is proposed that methodology compute to reduce cost or amount of carbon dioxide, fuel, and processing costs of global warming by using bicycle. For this, a program is implemented to display bicycle use information provided in the form of GPX based on Google Earth in three-dimensional environment and to service based on low carbon, green growth. The developed program is compared with existing commercial software. Through this study, new services have been developed to carry out low carbon and green growth in terms of bicycle users, and it is considered that the services can be applied to devices such as smart phones.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.28 no.3
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• pp.67-93
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• 2017

This study aims to investigate research trends on disaster safety Information based on the language network analysis methods. To accomplish it, we collected 312 Korean thesis and scholarly articles on disaster safety information published between 2008 and 2017 from RISS (Research Information Sharing Service) site. With the collected data, this study performed the statistical analysis based on bibliographic data. Also, this study performed the analysis of frequency and language network on keyword extracted from titles on the collected scholarly articles and thesis. This study found out that researches recently on Bigdata related to disaster safety information have been rapidly increased. Also, the needs of sharing and utilizing disaster safety information have increased. Also the various types of disaster safety information such as spatial data, real-time information, geographic information has been used for the disaster response.