• Journal of the Optical Society of Korea
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• v.14 no.4
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• pp.451-457
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• 2010

Increasing demands on the safety of public train services have led to the development of various types of security monitoring systems. Most of the surveillance systems are focused on the estimation of crowd level in the platform, thereby yielding too many false alarms. In this paper, we present a novel security monitoring system to detect critically dangerous situations such as when a passenger falls from the station platform, or when a passenger walks on the rail tracks. The method is composed of two stages of detecting dangerous situations. Objects falling over to the dangerous zone are detected by motion tracking. 3D depth information retrieved by the stereo vision is used to confirm fallen events. Experimental results show that virtually no error of either false positive or false negative is found while providing highly reliable detection performance. Since stereo matching is performed on a local image only when potentially dangerous situations are found; real-time operation is feasible without using dedicated hardware.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.141-154
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• 2001

This paper presents a fundamental study to establish a standardization system of the Construction Continuous Acquisition and Life-cycle Support(CALS). States of standardization in the Construction CALS were reviewed to find some defects in developing CALS system in construction industry. It is analyzed that three of major parts were needed to put up a standardization system for the Construction CALS. Firstly, the range of Construction CALS standardization is set up by identifying of Construction CALS and defining the standard and standardization. Secondly, the strategy to enable more effective implementation of Construction CALS standardization and the relationship of the concerned system presented can be used for establishing the Construction CALS standardization system. In addition, the spread and application device is proposed for using Construction CALS standards at public institutions and construction related companies. Conclusively, a classification system of the Construction CALS standards was proposed and some objects to be standardized were presented in the classification system. What were studied in this paper will provide the primary information and guidance to develop a guideline for standardization of the Construction CALS.

• Korean System Dynamics Review
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• v.7 no.1
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• pp.173-212
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• 2006

This paper attempts to provide a more complete acknowledging of Hallyu(Korean Wave), using systems thinking. The central concept is understanding how all the objects of Hallyu(Korean Wave) in a culture system interact with one another. What it attempts to do is understand the feedback loop of Hallyu(Korean Wave) with other country culture, and thus understand the behavior of mass culture agent it make produce. This works is for public management and policy in culture industry and leading culture itself. And alternative policies that alleviate the problem, and implements this solution at Hallyu(Korean Wave) continuance.

• Proceedings of the IEEK Conference
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• 2002.06d
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• pp.239-242
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• 2002

The rapid expansion of the Internet in the past few years has rapidly increased the availability of digital data such as audio, images and videos to the public. Therefore, The need for copyright protect of digital data are increasing in the internet. In this paper, Color image(RGB model) is transformed into LUV model, it includes the characteristics of, human vision and then the U or V component is transformed into 3-level wavelet transform. we can insert watermark to several objects of an image separately The experimental results showed that the proposed watermarking algorithm was better than to other RGB watermarking algorithm.

• Journal of Agricultural Extension & Community Development
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• v.17 no.2
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• pp.185-212
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• 2010

Agricultural high schools has been changing themselves toward more effective education system to survive in rapidly changing society. Changes occur in new students, in objects of school, and in curriculum. The purpose of this study was to analyze the condition of career education in agriculture high school. Questionnaires were use to collect data from 894 agricultural high schools. Results of this study show that the career education in agriculture high school has many problems in its curriculum, its contents, and the public relation of educational materials. It is recommended that various materials and manuals for career education should be developed and implemented for effective career education in agricultural high school.

• Journal of the Korea Institute of Military Science and Technology
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• v.13 no.1
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• pp.105-113
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• 2010

SAR(Synthetic Aperture Radar) has characteristics well-suited for the measurement of geophysical parameters during day and night in all weather conditions. Recently, SAR data with high resolution acquired by satellites became available to the public. In such data, many features and phenomena of geometric structure of man-made objects and natural environments become observable. In this paper, we discuss main considerations including geometric distortion and coregistration for efficient utilization of high resolution SAR images. And, various advanced technologies in SAR application fields are introduced.

• Fashion & Textile Research Journal
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• v.10 no.3
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• pp.342-352
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• 2008

Picasso and Chanel were the most famous artists of modern art & fashion area in 20th century. It is well known that they have deeply influenced to the current fashion and art. This study is aimed to analyze Channel's works based on the aspects of Picasso's from 1900's to 1930's. There are five common, distinct and formative aspects - flatness, geometry, transparency based on multi-perspective, volume, variety of objects. Their works are based on the simplicity which is expressed by the analyzation, organization, deconstruction influenced by cubism. It is reconfirmed that they gave the general public the new value-functionality-by using the ready-made materials. Nowadays artists model themselves after Picasso and Chanel who made attempt to conversion of ideas, the steady style, the long view, the interchange of other fields and popularization.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2005.11a
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• pp.147-150
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• 2005

Fixed lighting of public ways for both vehicles and pedestrians can create a nighttime environment in which people see comfortably and can quickly and accurately identify objects on the roadway being travelled roadway lighting can improve traffic safety, achieve efficient traffic movement and promote the general use of the facility during darkness. The design of a roadway lighting system involves consideration of visibility, economics, esthetics, safety and environmental conditions. This paper describe estimation of horizontal illuminance by actual measurement at main streets in Jejusi. We try to evaluate Jejusi Roadway Lighting Conditions for modeling by computer simulation.

• Journal of Technology Innovation
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• v.3 no.1
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• pp.133-155
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• 1995

It is difficult to develop objective evaluation techniques for the productivity in an R&D organization because there exists such as time lag between inputs and outputs, difficulties of measuring the influencing factors and results of a research and of comparing R&Ds with other objects towards innovation, and problems in identifying analysis elements. Particularly, governmental research institutes, pursuing publicity, have more difficulties in evaluating research achievement than the private ones. In evaluating the productivity of R&D organizations, this study aims at practically using the quantitative evaluation techniques by applying them to the public as well as private institutes. This will be finally contributing to decision making for effective management of R&D organization.

• Journal of Korea Multimedia Society
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• v.22 no.9
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• pp.1122-1131
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• 2019

This paper covers research on terrain construction for unmanned aerial vehicle simulators using spatial information that was distributed by public institutions. Aerial photography, DEM, vector maps and 3D model data were used in order to create a realistic terrain simulator. A data converting method was suggested while researching, so it was generated to automatically arrange and build city models (vWorld provided) and classification methods so that realistic images could be generated by 3D objects. For example: rivers, forests, roads, fields and so on, were arranged by aerial photographs, vector map (land cover map) and terrain construction based on the tile map used by DEM. In order to verify the terrain data of unmanned aircraft simulators produced by the proposed method, the location accuracy was verified by mounting onto Unreal Engine and checked location accuracy.