• Proceedings of the Optical Society of Korea Conference
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• 2003.02a
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• pp.106-107
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• 2003

본 연구에서는 고속 보정이 가능한 적응광학 시스템의 제어장치를 개발하였다. 개발된 장치는 윈도우즈 환경의 개인용 컴퓨터 상에서 구성하였으며, 원거리에서도 유선을 이용하여 안정적으로 제어하기 위하여 통신방식에 기초하여 제어알고리즘을 구성하였다. 개발된 적응광학 시스템의 전체 구성도는 그림 1과 같으며, 윈도우즈 환경의 개인용 컴퓨터와 변형거울, 기울기거울, 하트만 센서 및 간섭계로 구성되어있다. (중략)

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.781-783
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• 2004

본 논문에서는 실외 환경의 실시간 감시 시스템에 응용할 배경 모델링을 설계 구현한다. 일반적인 감시 시스템은 배경 모델링, 오브젝트 검출, 그리고 오브젝트 추적으로 나뉜다. 실시간으로 배경 모델링과 갱신을 수행하고 객체를 추적하기 위해서는 연산 시간이 적어야하며 노이즈 제거를 수행해야 한다. 노이즈 제거를 위하여 메디안 검출 방법을 이용하고 있으나 정렬 시간이 많은 문제점이 있다. 본 논문에서는 윈도우 기반의 러닝 윈도우 리스트 (running window list)를 제안하여 메디안 정렬 시간을 최소화하고 실시간으로 배경 모델링과 배경 갱신을 수행하는 방법을 제안한다.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.02a
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• pp.227-227
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• 2013

후쿠시마 원전 사고 이후로 원전의 안전에 대한 관심이 어느때 보다 크다. 기존의 원전이 가지고 있는 위험성을 획기적으로 줄인 가속기 구동 원자로(accelerator-driven nuclear reactor)에 대한 관심 또한 매우 크다. 양성자 가속기를 이용하여 양성자를 원자로 내부에 입사시켜 핵파쇄 반응으로 중성자를 생산하는 이 시스템은, 진공을 유지하여야 하는 가속기와 진공이 필요 없는 원자로가 서로 연결되어 있어서, 연결부에 양성자빔을 통과시키고 진공은 유지시키는 윈도우가 필요하다. 이 윈도우를 중심으로 가속기 구동 원자로에 필요한 진공 기술을 살펴본다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.628-630
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• 2003

본 연구는 손의 형상을 복잡한 배경환경에서 손 영역을 안정적으로 검출, 인식하여 윈도우 플레이어의 기능을 제어하는 시스템을 제안하였다. 손은 형상이 매우 복잡하기 때문에 2차원 형상의 불변량에 해당하는 에지의 방향성 히스토그램을 이용하여 인식을 행한다. 이 방법은 복잡한 배경에서 피부색을 지닌 손 영역이 정확히 추출되며 손 형상을 인식하는데 있어서 수행속도가 빠르고 조명변화에 덜 민감하기 때문에 실시간 손 형상 인식에 적합하다. 본 논문에서 제안한 방법을 윈도우 플레이어 제어에 적용한 결과 안정적으로 제어 할 수 있었다.

• Journal of Digital Convergence
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• v.10 no.5
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• pp.223-232
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• 2012

Recently, the leakage of personal information and privacy piracy increase. The victimized case of the malicious object rapidlies increase. Most of users use the windows operating system. Recently, the Windows 7 operating system was announced. Therefore, we need to study for the intrusion response technique at the next generation operate system circumstances. The accident response technique developed till now was mostly implemented around the Windows XP or the Windows Vista. However, a new vulnerability problem will be happen in the breach process of reaction as the Windows 7 operating system is announced. In the windows operating system, the system incident event needs to be efficiently analyzed. For this, the event information generated in a system needs to be visually analyzed around the time information or the security threat weight information. Therefore, in this research, we analyzed visually about the system event information generated in the Windows 7 operating system. And the system analyzing the system incident through the visual event information analysis process was designed and implemented. In case of using the system developed in this study the more efficient accident analysis is expected to be possible.

• Proceedings of the Korea Information Assurance Society Conference
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• 2004.05a
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• pp.131-137
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• 2004

With the rapid development of information sharing through network, If system is exposed to various threatener and security incident are became a social problem. As a countermeasure, various security systems are been using such as IDS, Firewall, VPN etc.. But, expertise or expert is required to handle security system. In this paper, design and implementation of file access control module for secure operation system. The module, implemented in this paper, is based on Windows and has effect integrity and non-repudiation for a file.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.366-371
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• 2008

In this paper, we suggest a haptic interface and a framework of interaction with haptic feedback based Windows graphical user interface (GUI) in a computing device with touch screen. The events that occur during a user interacts with Windows interfaces through a touch screen are filtered out by the Windows Interface Message Filter (WIMF) and converted into appropriate haptic feedback information by the Haptic Information Provider (HIP). The haptic information are conveyed to users through a stylus-like haptic interface interacting with a touch screen. Major Windows interaction schemes including button click, menu selection/pop-up, window selection/movement, icon selection/drag & drop and scroll have been implemented and user tests show the improved usability since the haptic feedback helps intuition and precise manipulation.

• Journal of the Korea Society of Computer and Information
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• v.15 no.2
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• pp.19-26
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• 2010

The Windows registry is a hierarchical database where the configuration data of a system or application programs is stored. In this paper, we presented and implemented a registry virtualization algorithm and measured its performance. The registry virtualization algorithm presented in the paper is called Copy-One-level On Write-Open(COOWO) that is a modified version of general Copy On Whte(COW) method to make it suitable for registry virtualization. In this paper, we implemented the proposed algorithm as a dynamically loadable library in Windows and applied it to many Windows application programs. This paper is meaningful since we described a registry virtualization algorithm in detail in situation where we can not find papers that describe the registry virtualization in detail, and we could find the performance of the algorithm can be used in the real applications.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.8
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• pp.1553-1560
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• 2016

In this paper, we design a program that controls the execution permissions for the running application in the Windows system environment. It does not allow general users to execute the program converting the specific location information of the execution program, to any of the bit values with the formal structure information in window program. The converted bit value can be returned to the original bit value in the case of an authorized user, so that the original program can be normally performed. By doing so, it can be more safely used in the risk of reverse engineering for Windows executable program. We implemented the control program for the program execution authority we proposed in this paper, and the experiment was performed. At the results of experiments, it was confirmed that the control function to permit execution for the user program was working properly in the Windows environment.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.5
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• pp.1051-1060
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• 2014

In this paper, performance of an orthogonal frequency division multiplexing (OFDM) system in an impulsive noise environment is analyzed. Here, it is verified that performance of the OFDM system with window nonlinearity, which is one of the impulsive noise mitigation algorithms, is dependent on the over-sampling rate and the size of window. With respect to the variation of those parameters, we also provide an appropriate region of threshold values that control amplitudes of the sampled waveform of received signals. As a result, a new combination of parameters which improves error performance of OFDM system in an impulsive noise environment as compared to the previously reported parameters is presented.