• Journal of the Korea Society of Computer and Information
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• v.16 no.8
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• pp.49-56
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• 2011

Recently, animation contents has become extensively available along with the development of cultural industry. In this paper, we propose a method to analyze a face of animation character and extract 3D rotational information of the face. The suggested method first generates a dominant color model of a face by learning the face image of animation character. Our system then detects the face and its components with the model, and establishes two coordinate systems: base coordinate system and target coordinate system. Our system estimates three dimensional rotational information of the animation character face using the geometric relationship of the two coordinate systems. Finally, in order to visually represent the extracted 3D information, a 3D face model in which the rotation information is reflected is displayed. In experiments, we show that our method can extract 3D rotation information of a character face reasonably.

• Journal of the Korea Society of Computer and Information
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• v.13 no.4
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• pp.133-140
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• 2008

The cable TV network has delivered downward broadcasting signals from distribution centers to subscribers. Since the traditional coaxial cable has been upgraded by the Hybrid Fiber Coaxial(HFC) cable, the upward channels has expanded broadband services such as Internet. This upward channel is vulnerable to ingress noises. When the noises from the children nodes accumulated in an amplifier exceeds a certain level, that node has to be cut off to prevent the noise propagation. The node selection problem(NSP) is defined to select nodes so that the noise in each node does not exceed the given threshold value and the sum of Profits of selected nodes can be maximized. The NSP has shown to be NP-hard. In this paper, we have proposed heuristics to find the near-optimal solution for NSP. The experimental results show that interval partitioning is better than greedy approach. Our heuristics can be used by the HFC network management system to provide privileged services to the premium subscribers on HFC networks.

• Journal of the Korea Society of Computer and Information
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• v.25 no.5
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• pp.209-216
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• 2020

As depository system for negotiation or reimbursement to the victim in criminal case is reflected to consideration for diminishing punishment and hence, it is very important in the process. According to the current law, one needs to fill out victim's personal information such as name, address, and ID number for processing depository. However, if the victim is sexual violence victim, all the personal information is covered up becoming anonymous. Therefore, it becomes difficult for the accused person to get necessary information. Such covering up action is to prevent further second damage that may be caused such as threatening for the negotiation whereas victim has no willingness to forgive the accused. However, even if the accused person regrets his/her crime and make reimbursement to the victim, as they have no personal information on the victim it becomes impossible for them to make the depository. If we apply ESCROW system here it will allow victims to avoid any direct contact with the accused person as well as preventing any privacy disclosure. Also, for the accuse person, they can show how much they regret by making depository within their capability.

• Journal of the Korea Society for Simulation
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• v.15 no.4
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• pp.129-136
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• 2006

Grid computing has been appeared for solving large-scaled data which are not solved by a single computer. Grid computing is a new generation platform which connects geographically distributed heterogeneous resources. However, gathering heterogeneous distributed resources produces many difficult problems. Especially. to assure resource reliability is one of the most critical problems. So, we propose a grid resource scheduling model using grid resource reliability measurement. We evaluate resource reliability based on resource status data and apply it to the grid scheduling model in DEVSJAVA modeling and simulation. This paper evaluates parameters such as resource utilization, job loss and average turn-around time and estimates experiment results of our model in comparison with those of existing scheduling models such as a random scheduling model and a round-robin scheduling model. These experiment results showed that the resource reliability measurement scheduling model provides efficient resource allocation and stable Job processing in comparison with a random scheduling model and a round-robin scheduling model.

• Journal of Digital Convergence
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• v.14 no.6
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• pp.85-91
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• 2016

Recently, luxury research has been interested the basis of the effect of charity on luxury brand. Some of their results showed that guilt reduction plays an important role in this mechanism. Current research focuses on the moderating effect of negative perception of production on the effect of charity and the moderated mediation of guilt reduction. An experiment using a well-known luxury brand is conducted. Results show that charity influences purchase intent toward luxury branded product positively and negative perception of production's main effect is negative. Charity x Production perception is significant. More importantly, moderated mediation of guilt reduction was significant, showing the mediated effect is greater when participants perceive the production negatively. Findings of this research provide theoretical and practical implications for the marketing of luxury brands, suggesting the new perspectives of ethic perception effect of production.

• Journal of KIISE
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• v.43 no.9
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• pp.998-1007
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• 2016

In recent years, the cost of automotive ECU (Electronic Control Unit) has accounted for more than 30% of total car production cost. However, the complexity of testing and debugging an automotive ECU is increasing because automobile manufacturers outsource automotive ECU production. Therefore, a large amount of cost and time are spent to localize faults during testing an automotive ECU. In order to solve these problems, we propose a fault localization method in memory for developers who run the integration testing of automotive ECU. In this method, memory is partitioned by utilizing memory map, and fault-suspiciousness for each partition is calculated by utilizing memory update information. Then, the fault-suspicious region for partitions is decided based on calculated fault-suspiciousness. The preliminary result indicated that the proposed method reduced the fault-suspicious region to 15.01(%) of memory size.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.6
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• pp.1157-1163
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• 2009

In order to improve in quality and productivity using the CNC machine tools, it has been endeavored to elevate production process by adding supplementary axes(2 axes) to 2,3 axial CNC machine tools. It is because the movement between the progress of work in processed goods is remarkably decreased more than that of general CNC machine tools that productivity improvement with precision maintenance can be improved. VBScript in CAD/CAM is applied to utilize CNC machine tools added supplementary axes so that Multi-axial &Multi-process manufacturin g program can be conveniently drawn up. However, there is generally much skilful work and operation by the manual program of CAD(2.5D) and CNC machine tools in the filed. As a result of conducting an experiment by COM-filing VBScript at the spot of Insert Tip for milling Face Cutter in CAD/CAM Software(2.5D), it was not only timesaving to draw up program but also more convenient than complicated Multi CAD/CAM Software to approach and possible to program various products instantaneously.

• Journal of Sasang Constitutional Medicine
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• v.8 no.1
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• pp.319-335
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• 1996

연구 목적 : 복지부 발표 '1993년도 대한민국 국민들의 영양상태'보고서를 보면 1인당 섭취열량은 1969보다 257Kcal가 줄어든 것으로 나타났다. 그런데도 불구하고 일부의 사람들은 과도한 열량을 섭취하고 있기 때문에 비만인 사람이 점점 늘어나고 있다. 그렇다보니 신문이나 잡지에서는 거의 매일 살빼는 약이나 신종 다이어트방법에 대한 광고와 기사를 앞다투어 내보내고 있는 실정이다. 비만증은 근래에 발병률이 현저히 증가하면서 중풍, 당뇨병, 고혈압, 암, 간경화증, 당석증 등의 만성질환의 이환율을 증가시키고, 관절에 큰 부담을 주어 골관절염을 보다 빠르게 진전시키며, 사람들의 수명을 단축시키는 등 심각한 건강상의 문제를 일으키고 있다. 또한 비만증은 용모의 손상을 일으켜 정신적인 스트레스의 주요 인자로 등장하고 있기도 하다. 비만인이 증가하는 원인으로는 서구화된 음식습관으로 동물성 지방질과 단백질의 섭취증가, TV 자동차 세탁기 오디오 리모콘 등 생활이기의 사용으로 인한 운동부족, 체질과 질병 등이 재기되고 있다. 이제까지 비만을 치료하기 위한 많은 시도가 있었으나 주된 이론은 섭취음식의 절재와 운동량을 증가시키는 것이었으며, 체질적인 요소를 중심으로 비만증을 해결하려는 시도는 없었다. 이에 저자는 1992년 8월 20일부터 1995년 8월 19일까지 만 3년동안 상지대학교 부속한방병원 체질의학과에서 치료받는 461명의 환자를 대상으로 사상체질과 비만과의 상관성을 임상적으로 연구하고 그 효과를 보고하는 바이다. 연구 결론 : 상지대학교 부속한방병원에 내원치료를 받고 있는 비만증환자들을 대상으로하여 체질과 비만과의 관계를 연구한 결과는 다음과 같다. 1. 비만증 환자의 70.2%가 태음인이었다. 2. 치료결과 4주동안에는 $1.48{\pm}1.64kg$, 5주부터 8주동안에는 $2.05{\pm}2.10kg$, 9주부터 12주동안에는 $2.18{\pm}2.27kg$, 13주부터 16주동안에는 $2.08{\pm}2.88kg$이 감량되었다. 3. 체중감량에 있어 태음인이 가장 많은 감소를 보였다. 연령별로는 10대에서 가장 많은 감소를 보였다. 4. 비만환자의 혈액 가운데 총 콜레스테롤, 저밀도 지방단백이 높온 사람보다 유리지방산과 중성지방이 높은 경우가 대부분을 차지했다. 5. 비만인의 혈청지질에서는 FFA, TG가 높았다. 그 이유는 육식보다는 당질과 지방질의 섭취로 나타난 것이었다.

• Journal of the Korea Society of Computer and Information
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• v.11 no.1 s.39
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• pp.139-145
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• 2006

Feature extraction technique in digital images has many applications such as robot vision, medical diagnostic system, and motion video transmission, etc. There are several methods for extracting features in digital images for example nonlinear gradient, nonlinear laplacian, and entropy convolutional filter. However, conventional convolutional filters are usually not efficient to extract features in an image because image feature formation in eyes is more sensitive to dark regions than to bright regions. A few nonlinear filters using difference between arithmetic mean and harmonic mean in a window for extracting sketch features are described in this paper They have some advantages, for example simple computation, dependence on local intensities and less sensitive to small intensity changes in very dark regions. Experimental results demonstrate more successful features extraction than other conventional filters over a wide variety of intensity variations.

• Journal of the Korea Society of Computer and Information
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• v.15 no.3
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• pp.55-63
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• 2010

On Handoff, existing AP search has chosen one of various APs according to signal strength. However IEEE 802.11 uses Medium Access method with CSMA/CA(Carrier Sensing Multiple Access /Collision Avoidance) that competes to obtain a channel by sharing common medium. For that reason, network performance is heavily affected by the number of nodes and network congestion aside from signal strength. Consequently, in this paper we propose the method that choose one AP which ensures more improved network performance and set up a link, reflecting AP network information in Handoff area, on Handoff in the process of AP selection. We also demonstrate through simulation that it gets maximum performance even in the wireless network which many users concurrently access to, and it has considerable effects on aspects of resources and network management by distribution of users.