• 패션비즈니스
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• 제9권1호
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• pp.21-33
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• 2005

The main objective of this research was to understand the characteristics of identical color coordination through the analysis of modern female fashion color coordination as they appear in the 'Collections'. Data collection of 2026 was done through review of '$pr\hat{e}t-\grave{a}$-porter Collections' of four cities; Milan, London, New York, Paris. Lastly, statistical analysis of frequency and $X^2$-test and also qualitative interpretation of identical color coordination characteristics were completed. The main findings were; The color coordination of modern women's fashion produces a unified theme, or monochromatic harmony, through the use and coordination of identical colors. The clear contrast of tones portrays a strong image especially in achromatic color coordination, and through the use of texture variation, monochromatic color coordination becomes even more compelling. The tone variation, observed most often in monochromatic color coordination was the black and white contrast, which enhances the simplicity and clarity. Within chromatic color combinations, tone on tone color coordination was achieved by varying brightness. Furthermore, the observation of Faux Camaeu indicates that the coordination of different textures is used often in identical color coordination. While achromatic colors can lead to a hard and rough feeling, it also is compensated through the use of varying textures. In addition, adding variety of textures can add subtle interests to the simplicity of white. Lastly, in all four collections, the chromatic identical color coordination was found more frequently than the achromatic. In Paris, N.Y. & London, the chromatic identical coordination was used more often than chromatic. Milan showed most use of achromatic coordination. The use of the tones showed similar trends in all four collections, with contrasting tone being used most often, followed by similar and identical tones.

• 한국의상디자인학회지
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• 제16권1호
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• pp.125-138
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• 2014

The purpose of this study was to investigate emotional images, preference, and purchasing intention on the color combination for knitwear cultural goods development. The subjects were 719 university students in Daejeon and Chungnam province, and the measuring instruments were 12 stimuli manipulated by the combination of chromatic and achromatic colors, and self-administrated questionnaires consisted of general color preference, emotional images, preference, and purchasing intention items of the knitwear cultural goods, and subjects' demographics attributions. The data were analyzed by Cronbach's ${\alpha}$, factor analysis, t test, ${\chi}^2$ test, ANOVA and Duncan's multiple range test, using SPSS program. The results were as follows. University students highly preferred black and gray color and deep tone on knitwear items, while they generally preferred blue and black color, and deep and pastel tone. The chromatic color combination was perceived as warm and conspicuous, but unattractive image. The achromatic color combination was perceived as cold and ordinary, but attractive image. Among the combination of chromatic and achromatic colors, gray & blue combination was perceived as more attractive image than red & dark gray combination. Color combination types of chromatic and achromatic color was showed some important differences on emotional image, preference and purchasing intention of knitwear cultural goods. Achromatic color combination was perceived as attractive image, and showed higher preference and purchasing intention than other color combination types.

• 전자공학회논문지
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• 제50권9호
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• pp.119-126
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• 2013

본 논문은 영상 획득 장치에서 발생하는 색수차를 영상의 국부적 특성을 고려하여 보정하는 알고리즘을 제안한다. 색수차는 파장에 따른 렌즈의 회절률 차이로 인해 발생하며, 그 결과 영상의 강한 에지 영역에서 RGB 채널이 어긋나 색 결함이 생기게 된다. 제안하는 알고리즘은 이러한 색수차가 발생하는 특성을 이용하여 먼저 영상의 에지 영역과 그 주변부를 색수차가 발생되는 영역으로 검출한다. 이 후, 검출된 에지 영역에서 RGB 채널의 에지를 일치시키는 방법을 이용하여 색수차를 제거한다. 그 결과 기존의 색수차 제거 방법으로 널리 사용되는 전역적인 영상 와핑 방법으로는 제거하지 못하는 축상 색수차와 이미징 센서로부터 발생하는 purple fringing 결함까지도 저감시킬 수 있다. 실험 결과를 통해 제안하는 방법이 기존 방법에 비해 수치적인 면과 시각적인 면에서 뛰어난 결과를 보임을 확인할 수 있다.

• 한국의류학회지
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• 제28권7호
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• pp.962-973
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• 2004

The purpose of this research is to understand the harmony of chromatic and achromatic colors of the traditional Korean dress. The subjects were women＇s college students in Korea and America. Chromatic colon, red, yellow, and green color, were chosen for the color of the Korean jacket, and achromatic colors were chosen for the color of the skirt, and then the colors＇ chroma were controlled and value of color was changed. In addition, the three colors of the jacket were combined with four kinds of the colors＇ tone. Then, the students of both countries assessed about the harmony for 48 colorations which were variously incorporated with the tones of skirt and jacket. The results of research can be summarized as follows. When red jackets were combined with skirts of achromatic colors, students of both counties showed the different views in the range of harmony and disharmony for colorations of white(N9) skin and vivid jacket, and white(N9) skirt and dark jacket, and black(N2) skirt and light jacket, and black(N2) skirt and dull jacket. In the tone of yellow jackets and achromatic skirts, students of both counties showed similar responses in that a light yellow jacket was well matched with dark grey(N4) and black(N2) skirt. While Korean students generally evaluated that coloration was well harmonized when low value color was arranged below, American students thought, that the tones of a harmonized skirt were different, according to the jacket＇s tones. When green jackets were combined with stills of achromatic colors, colorations that showed their different views of both countries were a white(N9) skirt combined with vivid, light, dull jackets, and a light grey(N7) skirt and dull jacket, and a dark grey(N4) skirt and dark jacket. Among 48 stimuli of coloration on the chromatic and achromatic colors, Korean students evaluated 16sets and American students judged 28 sets as harmonized colors. Therefore, it came to the conclusion that Korean students had the sense of harmonious coloration of more narrow range than American students.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.477-480
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• 2008

A highly efficient white phosphorescent OLED with a "tetra-chromatic" emission was fabricated by using an external color tuning layer (ECTL) which is composed of a layer of greenish yellow organic dye dispersed in PMMA on the outside of the glass. The ECTL combining with a lower red dopant concentration in the device has been found to improve the efficiency of a conventional WOLED by more than 27%.

• Journal of the Optical Society of Korea
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• 제4권2호
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• pp.94-99
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• 2000

Optical monitoring using the chromatic aberration of focusing optics is applied to auto-focus control in laser welding. The spectral transmittance of thermal radiation from a weld pool through an aperture depends on the wavelength of the spectral band and on the distance of the weld pool from the focusing optics. Its dependence has been used to monitor the focus shift in laser welding by measuring the spectral band signals filtered by the aperture. The difference between pulsed and continuous laser welding is analyzed. Furthermore, the dependence of the focus shift monitoring on the weld pool size variation is optimized to monitor the focus shift independently from the laser power change at the weld pool. The performance of the auto-focus control with chromatic filtering is presented for pulsed laser welding.

• 한국광학회지
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• 제28권2호
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• pp.68-74
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• 2017

특정한 파장대역에서 파장변화에 따른 굴절능의 변화를 1차, 2차 미분까지 보정하여 기준파장과 그 인근 파장 대역에서 굴절능의 변화가 매우 적도록 안정화된 광학계를 설계하는 방법에 대하여 연구하고, 이를 적용하여 회절한계의 시준렌즈를 설계하였다. 설계된 광학계는 파장 변화에 대하여 매우 안정하였고, 파장 360~410 nm 대역에서 유효초점거리의 변화가 0.002% 이내로 매우 적었다.

• 한국레이저가공학회지
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• 제4권2호
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• pp.29-38
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• 2001

A development of in-process and reliable monitoring system in laser materials processing is essential for successful applications toward the real industrial fields. It was known that optical signals induced by laser-matter interactions provide a good indication not only to monitor various defects but also to characterize and identify the process However there are still difficulties to implement the optical monitoring system in real fields since the system is susceptible to the spurious change of the signal affected by the variation of experimental conditions and environmental noises. In this article. a new type of optical monitoring technique named 'chromatic modulation technique' is described as a reliable, robust and sensitive monitor for the applications in laser materials processing in order to tackle the conventional problems in optical system.

• Journal of the Optical Society of Korea
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• 제13권3호
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• pp.367-372
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• 2009

In this paper we propose an electronic domain timing phase selection scheme for the optical communication systems suffering from inter-symbol-interference (ISI) distortion due to chromatic dispersion (CD) or polarization mode dispersion (PMD). In the presence of CD/PMD a proper timing phase selection is important for discrete time domain equalizers, since different timing phases produce different nonlinear ISI channels of different severity. The proposed timing phase recovery scheme based on dispersion minimization (DM) practically approximates the optimal minimum mean squared error (MMSE) timing phase without training signals which reduces overall throughput substantially, especially in time-varying channels such as PMD. The simulation results show that the proposed DM timing agrees with MMSE timing phase, under proper normalization of the received signals, for various dispersion and OSNR.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.1550-1553
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• 2009

We studied the human visual performance with PDP and LCD to clarify the relationships between viewer preference and chromatic adaption. In this paper, optical performance of the display is measured mechanically based on standard. The human visual performance about the display color image quality trough optical process is represented numerically based on CIECAM02. By comparing these results with the result of the questionnaire, performance of the display can be evaluated in detail.