• 대한안전경영과학회지
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• 제21권4호
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• pp.67-74
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• 2019

Visual inspection is regarded as one of the critical activities for quality control in a manufacturing company. it is thus important to improve the performance of detecting a defective part or product. There are three probable working modes for visual inspection: fully automatic (by automatic machines), fully manual (by human operators), and semi-automatic (by collaboration between human operators and automatic machines). Most of the current studies on visual inspection have been focused on the improvement of automatic detection performance by developing a better automatic machine using computer vision technologies. However, there are still a range of situations where human operators should conduct visual inspection with/without automatic machines. In this situation, human operators'performance of visual inspection is significant to the successful quality control. However, visual inspection of components assembled into a mobile camera module belongs to those situations. This study aims to investigate human performance issues in visual inspection of the components, paying more attention to human errors. For this, Abstraction Hierarchy-based work domain modeling method was applied to examine a range of direct or indirect factors related to human errors and their relationships in the visual inspection of the components. Although this study was conducted in the context of manufacturing mobile camera modules, the proposed method would be easily generalized into other industries.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1131-1133
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• 2003

Spatial image processing software requires various user interactions to make a plan, prepare necessary data such as images, vectors, ancillary data and user-defined data, execute functions according to pre-defined procedures, analyze and store the results. In this manner, overall processes are controlled by user interactions. In this paper, we propose visual modeler which has the automated spatial image processing technique to minimize user interactions and re -use repeatable procedure. The proposed visual modeler is designed to use inter-operable components proposed by OpenGIS consortium as well as conventional COM components.

• 디지털융복합연구
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• 제14권11호
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• pp.495-500
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• 2016

2016년을 기점으로 VR 시장이 급속도로 성장하고 있으며, 현재 VR 시장에서 가장 중요한 이슈로 떠오르고 있는 것은 VR 콘텐츠이다. 사용자의 몰입감과 상호작용을 최대한 충족시킬 수 있는 제작 기법과 좀 더 다양한 VR 콘텐츠가 필요하기 때문이다. 본 연구는 VR 콘텐츠 중 VR 영상 콘텐츠를 중심으로 몰입감을 지속할 수 있게 하고 향상할 수 있는 시청각 유도의 구성요소들을 국내외 사례 분석을 통해 시청각 유도의 올바른 방향성을 찾아보았다. 그 결과 시청각 유도의 시각적 청각적 구성요소로는 촬영, 편집, 조명, 스티칭, 그래픽, 이펙트, 성우 내레이션, 더빙, 등장인물의 음성, 배경음악 및 효과음 등이 있었고, 다시 기술적 내용적 요소로는 촬영기법, 편집기법, 조명, 스티칭, 그래픽과 이펙트, 사운드 및 효과음, 미장센 중심의 연극적 연출, 등장인물의 대사 및 내레이션, 등장인물과 오브제의 움직임 등으로 나타났으며, 더불어 향후 VR 영상 콘텐츠는 몰입감을 향상할 수 있는 시청각적 구성요소들과 함께 기술적 내용적인 구성요소들이 필요하며 지속적인 연구가 병행되어야 할 것이다.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2002년도 춘계학술대회 논문집
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• pp.491-495
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• 2002

In the paper, a Visual factory model for a optical-components manufacturing process is built. The optical-components manufacturing process is composed of 3 operation processes; optical sub assembly process, package assembly process, and fiber assembly process. Each process is managed not a batch mode, which is one of most popular manufacturing styles to produce a great deal of industrial output, but though a modular cell. In the processes, a modular cell has to be processed independently of the other cells. Optimization for the composition of assembly cell in the optical-components system is made by the Visual factory model.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.636-639
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• 2002

In the paper, a Visual factory model for a optical-components manufacturing process is built. The optical-components manufacturing process is composed of 3 operation processes; optical sub assembly process, package assembly process, and fiber assembly process. Each process is managed not a batch mode, which is one of most popular manufacturing styles to produce a great deal of industrial output, but though a modular cell. In the processes, a modular cell has to be processed independently of the other cells. Optimization for the composition of assembly cell in the optical-components system is made by the Visual factory model.

• KIEAE Journal
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• 제9권3호
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• pp.37-46
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• 2009

This study conducted an evaluation of the streetscape improvement project of the Gwangbok Street through analysis of visual and perceptual characteristics by comparing selected pictures of streetscape before and after the project. This work has conducted an analysis of the environmental factors which influence subjects' satisfaction degrees including physical street equipments and street view factors which are main contents of this project. Using a satisfaction analysis and factor analysis, each factor's significance was verified quantitatively. As a result of the analysis, physical components of the streetscape were classified into 4 types according to project's effectiveness and improvement priorities. These 4 types include (1) Components for maintenance because of higher satisfaction and higher importance, (2) Components for improvement because of lower satisfaction and higher importance, (3) Components for good business fruits because of higher satisfaction and lower importance, and (4) Components for unnecessity because of lower satisfaction and lower importance.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2013년도 추계학술대회
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• pp.8-11
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• 2013

We implement the foveation and frequency sensitivity feature of human visual system in discrete cosine transform (DCT) domain. Resolution of human visual perception decays as distance from the eye-focused point, known as foveation property, and the middle frequency components give most pleasant image quality to human than the low and high frequency components, which is the frequency sensitivity property of human visual system. For satisfying the foveation property, we enhanced the local contrast at the focused regions and smoothed local contrast at the non-focused regions in the DCT domain without bringing the blocking and ringing artifacts. Moreover, the energies at each DCT frequency components is modified with various degree to fulfill the frequency sensitivity property. The proposed method is verified by the subjective and objective evaluations that it can the improve the human perceptual visual quality.

• 한국융합학회논문지
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• 제9권1호
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• pp.485-492
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• 2018

본 연구는 2017년 베스트셀러 표지디자인의 시각적 구성요소에 대하여 분석하고자 하였다. 편집디자인 전문가와의 예비 조사를 통해 시각적 구성요소를 분류하였고, 지난해 매출순위 1위인 교보문고의 2017년 연간 베스트셀러 20위의 책을 연구 대상으로 한정하였다. 설문의 대상은 구성요소를 판단할 수 있는 디자인 관련학과 졸업생 50명을 대상으로 실시하여 다음과 같은 분석 결과를 도출하였다. 첫째, 레이아웃은 대비형의 형태가 가장 많이 나타났으며, '언어의 온도'가 45.5%로 가장 높게 나타났다. 둘째, 타이포그래픽에서는 분야와의 상관관계를 보이며, 명조체가 주를 이루었으며 '사피엔스'가 92.5%로 가장 높게 나타났다. 셋째, 이미지는 일러스트레이션으로 '나미야 잡화점의 기적'이 93.2%로 가장 높게 나타났다. 이러한 표지디자인의 시각적 구성요소는 처음 책을 접하는 독자들에게 책을 선택하는 중요한 요소로 작용하게 된다. 그러므로 베스트셀러의 시각적 구성요소의 연구는 지속되어야 하며 이러한 연구를 바탕으로 마케팅 분야에 활용되어 출판시장의 발전에 도움이 되기를 바란다.

• 천문학회지
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• 제9권1호
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• pp.7-8
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• 1976

Standardized photoelectric magnitudes and color indices of 23 components of 17 visual binaries are presented.

• 반도체디스플레이기술학회지
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• 제11권3호
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• pp.39-44
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• 2012

Electronics in modern lives have become more miniaturized and precise. Multi Layered Ceramic Capacitor (MLCC) occupies 50% of electronic components consisting of electronics. This high volume of the production needs high speed and more precise machine performances. The dominate parts of the production equipments are the module transporting components and the visual inspection module. Most visual inspection has been off-line because of the image processing time. In this paper, a new image processing method is proposed to reduce thousands of matrix calculation for image processing and realize on-line high speed inspection.