• Journal of KIISE:Software and Applications
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• v.37 no.8
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• pp.629-640
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• 2010

The exemplar-based inpainting model is widely used to remove objects from natural images and to restore a damaged region. This paper presents a method which improves the performance of the conventional exemplar-based inpainting model by modifying three major parts in the model: data term, confidence term and patch selection. While the conventional data term is calculated using the local gradient, the proposed method uses 16 compass masks to get the global gradient to make the method robust to noise. To overcome the problem that the confidence term gets negligible in the inside of the eliminated region, a method is proposed which makes the confidence term decrease slowly in the eliminated region. The patch selection procedure is modified so that the closer patch has higher weight. Experiments showed that the proposed method produced more natural images and lower reconstruction error than the conventional exemplar-based inpainting.

• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.426-437
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• 2012

The purpose of this study is to investigate the relationship between internal service quality, internal customer satisfaction and management outcome of airport security agents. This study had selected special securities from Incheon airport of October, 2011 for population. Using judgment sampling method, 282 samples were drawn and were used for the final analysis. Questionnaire used in study is composed of total 43 questions and using SPSSWIN 18.0, frequency analysis, factor analysis, reliability analysis, multiple regression analysis and path analysis were performed. Cronbach's ${\alpha}$ value which shows the reliability of the survey came out to be over .686. The conclusion is following: First, internal service quality of airport security agents affects internal customer satisfaction. That is, as corporality, responsiveness and empathy increase, internal supply satisfaction and job satisfaction also increase. Second, internal service quality of airport security agent affects job performance. That is, as corporality, reliability and responsiveness increase, non-financial performance and financial performance also increase. However, when empathy is not activated well, financial performance is decreased. Third, airport security agent…s internal customer satisfaction affects job performance. That is, as activation of internal supply satisfaction increases, nonfinancial performance and financial performance are increased. Fourth, airport special security agent…s inside quality of service exerts direction indirect effect in inside customers satisfaction and management result. That is, inside customers satisfaction is an important variable that mediate inside quality of service and management result.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.4
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• pp.592-598
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• 2017

The purpose of this study is to suggest a new inspection period of ${\triangle}{\triangle}$ guided missiles by analyzing their reliability using field data. The ${\triangle}{\triangle}$ guided missile has an inspection period of five years which was determined using prediction data during its development process. However, from the analysis of its field data, it was shown that the inspection period could be extended to more than 18 years. Based on this result, a policy is proposed to reevaluate the inspection period by means of practical reliability tests.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2002.06a
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• pp.348-352
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• 2002

자동차의 바킹류 및 방음고무는 자동차의 소음 및 오일등 각종유액의 누설의 대부분을 차지하고 있기 때문에 자동차의 생명연장에 필수적인 부품이다. 현재까지 선별시스템의 고가로 인해서 대부분의 선별이 수작업으로 이루어져 왔다. 이는 피로누적에 의한 오류가 많을 수 있고 제품의 신뢰도에 치명적일 수 있다. 선별 시스템을 완전 자동화 하므로서 공정개선 및 인건비 절감, 신뢰도 개선의 효과가 있다. 이 연구는 앞으로 이들 고무 제품의 검사 장비의 자동화를 이루는 기반을 만든다고 할 수 있다. 특히 컨베이어 벨트를 타고 흐르는 부품을 제어하는 부분과, 움직이는 물체의 타이밍을 설계하여 영상획득하여 내부 불량 제품에 DCT를 적용하여 선별시스템을 만들었다.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05c
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• pp.240-244
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• 2002

자동차의 바킹류 및 방음고무는 자동차의 소음 및 오일둥 각종유액의 누설의 대부분을 차지하고 있기 때문에 자동차의 생명연장에 필수적인 부품이다. 현재까지 선별시스템의 고가로 인해서 대부분의 선별이 수작업으로 이루어져 왔다. 이는 피로누적에 의한 오류가 많을 수 있고 제품의 신뢰도에 치명적일 수 있다. 선별 시스템을 완전 자동화 하므로서 공정개선 및 인건비 절감, 신뢰도 개선의 효과가 있다. 이 연구는 앞으로 이들 고무 제품의 검사 장비의 자동화를 이루는 기반을 만든다고 할 수 있다. 특히 컨베이어 벨트를 타고 흐르는 부품을 제어하는 부분과, 움직이는 물체의 타이밍을 설계하여 영상획득하여 내부 불량 제품에 DCT를 적용하여 선별시스템을 만들었다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.6
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• pp.1837-1844
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• 2014

The study of safety culture estimate has received a wide attentions in many other industries, rather in the contexture of railroad stands at an initial phase. A factor analysis and internal reliability test were conducted to check if the survey results are reliable by looking at how the factors are dimensioned and how the questionnaires are sub-grouped in accordance with such factors, and further if there are any other common attributes being extracted as a new factor. The designed 5 factors were expanded to 7 through the test, and they were renamed accordingly. The questionnaires are reorganized according to the new 7 factors. It implicates that thorough investigation of the common attributes is important in reducing the gaps between interviewers' and interviewees' understanding. Moreover, the results of internal reliability test represent the new design of questionnaire is reasonably acceptable with the high reliable values. We expect such approaches can be applied for the railway culture survey study to be more reliable and applicable.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.81-84
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• 2001

본 논문은 중규모 단어급의 핵심어 검출 시스템에서 인식률 향상을 위해 미등록어 거절(Out-of-Vocabulary rejection) 기능을 제어하기 위한 연구이다. 이것은 핵심어 검출기에서 인식된 결과를 확인하는 과정으로 검증시스템이 구현되기 위해서는 매 음소마다 검증 기능이 필요하고, 이를 위해서 반음소(anti-phoneme model) 모델을 사용하였다. 검증의 역할은 인식기에서 인식된 단어가 등록어인지 미등록어인지 판별하는 것이다. 단어인식기는 비터비 탐색을 하므로, 기본적으로 단어단위로 인식을 하지만 그 인식된 단어는 내부적으로 음소단위로 인식된다. 따라서, 최소 검증 오류를 갖는 반음소 모델을 사용하고, 이를 이용하여 인식된 음소 단위들을 각각의 반음소 모델과 비교하여 통계적인 방법에 의해 신뢰도를 구한다 이 음소단위의 신뢰도를 단어 단위의 신뢰도로 환산하기 위해서 음소단위를 평균 내는 방식 을 취한다. 이렇게 함으로서, 등록어와 미등록어 사이의 분별력을 크게 하여 향상된 인식 성능을 얻었다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.12 no.2
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• pp.139-147
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• 1987

This paper presented a method evaluating the signal reliability for signal stuck-at-type in digital circuits. Here, the signal reliability is defined as the probability that circuit output is correct, even though the fault existed at the internal parts of digital circuit. In evaluating the signal reliability, this paper presented not only fault model and algorithm for signal stuck-at-type fault but also computer program for evaluating the signal reliability with respect to complex and large circuit.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.11 no.1
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• pp.7-18
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• 1993

In analyzing whole surface of non-topographic objects, the design of multi-station photogrammetric network must involve a number of questions such as geometric configuration of exposure stations, imaging geometry, control point configuration or weight allowance of adjustments. Above all, the surveying of the interior of narrow longitudinal structures needs the design of special photogrammetric network. The main objective of this paper is to suggest the schemes for solving difficult problems attendant upon whole inside-surface analysis of structure and to improve the accuracy and reliability of final measurements. For it, the multi-station exposure network suitable to shape and size of the inside of the structure was designed. Then three dimensional data were acquired by bundle adjustments derived from multi-station photos and the effects of network design factors on accuracy of measurements were contemplated. Also, the algorithm for detection of blunders was developed here is expected to lead to improvement of the reliability of photogrammetric solutions.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.574-576
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• 2001

컴포넌트에 기반한 소프트웨어 개발(CBSD)에 관한 연구가 활발히 진행 중에 있다. 시스템 개발 시 컴포넌트를 활용하여 개발기간과 신뢰도를 향상시키기 위해서는 무엇보다 이들 컴포넌트의 탐색과 선택을 효과적으로 지원할 수 있는 방안이 요구된다[11]. 이를 위하여 컴포넌트 명세기법과 검색시스템에 관한 연구가 지속적으로 수행되고 있으나, 다수의 연구에서 컴포넌트의 기능과 인터페이스에만 초점을 두어 종속성에 대한 고려는 부족한 실정이다. 컴포넌트는 본질적으로 완벽하게 독립적이지 못하며 내부와 외부 요소간 종속성을 맺기 때문에 [5]. 종속성에 관한 명세와 정보제공은 컴포넌트 재사용과 활성화를 위해 필수적이다. 따라서, 본 연구에서는 XML을 이용한 자바빈즈 컴포넌트의 내부 종속성 명세기법을 제시하고자 한다.