• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 춘계학술대회 논문집 디스플레이 광소자 분야
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• pp.165-168
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• 2000

An active-matrix LCD using thin film transistors (TFT) has been widely recognized as having potential for high-quality color fiat-panel displays. Pixel-Design Array Simulation Tool (PDAST) was used to profoundly understand the gate signal distortion and pixel charging capability, which are the most critical limiting factors for high-quality TFT-LCDs. In addition, PDAST can estimate voltage distributions in common electrode which can affect pixel voltage and feed-through voltage. Since PDAST can simulate the gate, data and the pixel voltages of a certain pixel on TFT array at any time and at any location on an array, the effect of common electrode voltage can be effectively analyzed. The information obtained from this study could be utilized to design the larger area and finer image quality panel.

• 대한치과보철학회지
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• 제38권3호
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• pp.366-374
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• 2000

FRC/ceromer system provides the clinician with a durable, flexible, and esthetic alternative to conventional porcelain fused to metal crowns. FRC is the matrix which is silica-coated and embedded in a resin matrix. The ceromer material which is a second generation indirect composite resin contains silanized, microhybrid inorganic fillers embedded in a light-curing organic matrix. FRC/ceromer restoration has a several advantages: better shock absorption, less wear of occluding teeth, translucency, color stability, bonding ability to dental hard tissues, and resiliency. It has versatility of use including inlay, onlay, single crown, and esthetic veneers. With adhesive technique, it can be used for single tooth replacement in forms of inlay adhesion bridge. In single tooth missing case, conventional PFM bridge has been used for esthetic restoration. However, this restoration has several disadvantages such as high cost, potential framework distortion during fabrication, and difficulty in repairing fractures. Inlay adhesion bridge with FRC/ceromer would be a good alternative treatment plan. This article describes a cases restored with Targis/Vectris inlay adhesion bridge. Tooth preparation guide, fabrication procedure, and cementation procedure of this system will be dealt. The strength/weakness of this restoration will be mentioned, also. If it has been used appropriately in carefully selected case, it can satisfy not only dentist's demand of sparing dental hard tissue but also patient's desire of seeking a esthetic restorations with a natural appearance.

• Human Ecology Research
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• 제51권5호
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• pp.563-571
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• 2013

This study aimed to investigate the effects of somatotypes and body-related variables such as body exposure and body satisfaction on underwear evaluative criteria. Usable questionnaires were obtained from a total of 250 male and female students in their 20s. The data were mainly analyzed by t-test, ANOVA and analysis of variance using SPSS ver. 21.0. The results of this study are as follows: First, differences between underwear and outerwear evaluative criteria were found. For example, size, comfort and washing were important for the underwear but design, brand and fashionability were meaningful for outerwear. Price, color, material, and sewing were important for both outerwear and underwear. Second, the groups divided by somatotypes, a thin person group, a moderate person group and a fat person group, showed no difference in underwear evaluative criteria. Members of all the somatotype groups evaluated underwear similarly. Third, the groups divided by body image distortion showed different evaluative criteria for underwear. The negative discordance group emphasized the importance of the practicality factor, but the positive discordance group stressed the significance of the symbolism factor. Finally, the groups divided by body exposure and body satisfaction showed different evaluative criteria for underwear, too. The effects of socio-cultural variables on the underwear evaluative criteria proved to be significant.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.749-752
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• 2005

In the industry, three-dimensional coloring has been needed for realistic prototype from rapid prototyping. Z-corporation developed a 3D printer which provides three-dimensional colored prototype. However, the existing process cannot be adopted to models from other rapid prototyping process. In addition, time and cost for manufacturing colored prototype still remain to be improved. In this study, a new coloring process using ink-jet head is proposed for color printing on three-dimensional prototype surface. Process parameters such as the angle and the distance between ink-jet nozzle and the three-dimensional surface should be investigated from experiments. The correction matrix according to sloped angle to minimize the distortion of 2D image was proposed by analysis of printing error. Therefore, approximated method for angle and discrete length according to the radius of curvature for printing on the curved surface was proposed. By printing image on the doubly curved surface, the method was verified. As a practical example, helmet was chosen for printing images on the curved surface. The character images were applied with approximated method for angle and discrete length and was printed on the helmet surface.

• 한국정보통신학회논문지
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• 제15권4호
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• pp.943-950
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• 2011

이 논문에서는 2D 및 3D 영상의 어텐션량을 측정하여 정지 및 동영상의 재설정 및 압축처리 기법을 제시하였다. 2D 어텐션은 세 개의 주요 구성, 즉, 영상의 세기, 컬러 및 방향성을 고려하였으며, 3D 영상에서 깊이 정보를 고려하였다. 시각적 어텐션은 관심있고 흥미있는 영역이나 객체를 검출하기 위해 희소성을 정량화하는 기법에 의해 구하였다. 왜곡된 스테레오 영상에서 변화된 깊이 정보를 어텐션 확률에 정합시켜서 최종적으로 저위 HVS 반응을 실제 어텐션 확률과 종합하여 스테레오 왜곡 예측기를 설계하였다. 결과로 기존 모델에 비해 효과적인 어텐션 기법을 개발하였으며 이를 비디오 재설정에 적용하여 성능을 입증하였다.

• Journal of Computational Design and Engineering
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• 제2권1호
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• pp.38-46
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• 2015

Augmented reality based on projection, called "Spatial Augmented Reality (SAR)", is a new technology that can produce immersive contents by overlapping virtuality and real-world environment. It has been paid attention as the next generation digital contents in media art and human-computer interaction (HCI). In this paper, we present a new methodology to evaluate the product appearance design more intuitively by means of SAR technique. The proposed method first projects the high-quality rendered image considering the optical property of materials onto the mock-up of a product. We also conduct a projector-camera calibration to compensate a color distortion according to a projector, a projection surface and environment lighting. The design evaluation methodology we propose offers more flexible and intuitive evaluation environment to a designer and user (evaluator) than previous methods that are performed via a digital display. At the end of this research, we have conducted a case study for designing and evaluating appearance design of an automobile.

• 전자공학회논문지 IE
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• 제48권4호
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• pp.1-6
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• 2011

본 논문에서는 LCD 제조공정 상에서 발생할 수 있는 결함을 검사하고 분류할 수 있는 적응적인 LCD 표면 결함 검사 시스템을 제안하였다. 즉, 반복되는 LCD 패턴의 주기를 확정한 후에 결함 패턴을 검출하고 검출된 결함 패턴의 특징을 계산하여 결함을 분류하였다. 그리고 결함을 검출하는 과정에서 발생하는 잡음은 모폴로지 연산자를 이용하여 제거하였다. 또한, 검출된 결함 패턴에서 기하학적인 특징과 통계적 특징을 계산한 후 신경회로망 알고리즘을 이용하여 여러 종류의 결함 패턴을 적응적으로 분류하였으며, 실험 결과 92.3%의 결함 검출율 및 94.5%의 결함 분류 및 인식율을 획득함으로써, LCD 결함 검사 시스템의 실질적인 구현 가능성을 제시하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 D
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• pp.1364-1366
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• 1998

An active-matrix LCD using thin film transistors (TFT) has been widely recognized as having potential for high-quality color flat-panel displays. Pixel-Design Array Simulation Tool (PDAST) was used to profoundly understand the gate signal distortion and pixel charging capability, which are the most critical limiting factors for high-quality TFT-LCDs. Since PDAST can simulate the gate, data and pixel voltages of a certain pixel on TFT array at any time and at any location on an array, the effect of the resistivity of gate line material on the pixel operations can be effectively analyzed. The gate signal delay. pixel charging ratio, level-shift of the pixel voltage were simulated with varying the parameters. The information obtained from this study could be utilized to design the larger area and finer image quality panel.

• 복식
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• 제59권10호
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• pp.38-50
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• 2009

Since Homeros in Greece, Mimesis was thought to be an art to imitate the nature, and it means an imitation of the nature classically. Mimetic theories were set to be a kind of art work in the era of Renaissance, and the terminology of mimesis was widely used to replace it with an originality in the 15th century. The purpose of this study is to understand the aesthetics of mimesis expressed in 2000s fashion. For this purpose, I investigated the theories of the mimesis, categorized the definition, then applied those categories for 2000s fashion. Documentary studies were conducted through aesthetics, fashion books and demonstrative studies were processed by analyzing photos from collection fashion magazines and fashion site of internet. In the history of aesthetics, the mimesis could be defined into three categories; the similarity and the representation mimesis, the symbol mimesis and the abstraction mimesis. In fashion, the representation mimesis included a natural and a folk, a period that of 1900s and ancient representation mimesis. The symbol mimesis included psychology and fear symbol mimesis. The abstraction mimesis included hard color, a geometric simplification and distortion mimesis. Analysis on the mimesis expressed in 2000s modern fashion may provide an excellent method for understanding human aesthetic in costume.

• 복식
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• 제50권2호
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• pp.111-123
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• 2000

This study compares architecture with dress, investigates the image of transparency expressed in modern dress, and reveals its modern meaning. That is the purpose for this study. The study results are as follows. First, purity was expressed with simple, white color which has not any exaggeration or decoration, and transparent veils of wedding dress express clean and pure image which represents the original meaning of wedding dress. Second, eroticism conveys being erotic by exposing human body through transmission of light over transparent materials. Eroticism expressed by wearing thin and transparent dress with body-conscious line almost like being nude or emphasizing the sexually curious area in human body. The biggest difference in this study is that eroticism is delivered in dress, but not in architecture. Third, playfulness shows synchronism which recognizes human body with transmission of light over ,linear, transparent materials or recognizes inside dress. Playfulness expressed with location switch between inside and outside, exaggeration, distortion , and emphasis. Forth , openness makes dress atmosphere soft by putting transparent materials over opaque materials, expressed separation from restriction by wearing transparent dress over a naked human body, and expressed open ad free image by expressing human emancipation and freedom. Transparent dress expressed modern human being's sensitivity desire for living with light and joyful mood departing from heavy through, and also open and free image which pursues for freedom of human boedy departing from the restriction of human body.