• 제목/요약/키워드: achromatic

검색결과 258건 처리시간 0.031초

CCD image system을 갖는 유전체칩 분석장치를 위한 효율적인 광학시스템 설계 (Effective Optical System Design for Biochip Analyzer with CCD Image System)

  • 배수진;강욱
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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    • pp.488-491
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    • 2003
  • Biochip-based diagnostic technology is an effective, time- and money- saving way. But, biochip analyzer including CCD imaging system has a complete optical system. It is one of reasons that the cost of biochip analyzer is expensive with CCD imaging system. In this paper, We suggested the simple and effective optical system for biochip analyzer with CCD imaging system. It consists of two parts with the same structure but opposite direction. Each part consists of achromatic doublet and meniscus. Suggested optical system has less lenses than existing system and more efficiently.

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Risley Prisms Scanning Optical Imaging System Using Liquid Crystal Spatial Light Modulator

  • Song, Dalin;Chang, Jun;Zhao, Yifei;Zhao, Qing
    • Current Optics and Photonics
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    • 제3권3호
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    • pp.215-219
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    • 2019
  • Chromatic aberrations induced by Risley prisms made of a single material can be substantially compensated using a liquid crystal spatial light modulator while still keeping the prism pairs compact, simple and lightweight. A ${\pm}10^{\circ}$ optical scanning imaging system with ${\pm}2^{\circ}$instantaneous field based on LC-SLM correction is designed as an example. The ultimate simulation results show that this kind of scheme is an effective way of improving imaging performance dynamically across the full field of scanning.

안경 렌즈 및 물체의 색상에 따른 최대 조절력 변화 (The Change of the Accommodative Amplitude in Accordance with the Color of the Spectacle Lens or Object)

  • 오병하;이재호;정세훈;박미정
    • 한국안광학회지
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    • 제13권1호
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    • pp.119-124
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    • 2008
  • 목적: 본 연구에서는 안경렌즈와 물체의 색상에 따라 최대 조절력의 변화가 있는지 알아보았다. 방법: 20대 40명을 대상으로 무착색렌즈, 회색렌즈, 갈색렌즈, 녹색렌즈를 착용 후 물체 및 배경의 색상을 달리하면서 최대 조절력을 측정하였다. 최대 조절력은 마이너스 렌즈 부가법을 사용하여 측정하였다. 결과: 흰색 배경에 검정색, 빨간색, 녹색 물체를 볼 때 무착색렌즈에 비해 착색렌즈를 착용한 경우에 최대 조절력이 증가하는 경향을 보였다. 특히, 녹색렌즈의 경우는 어떤 색상의 물체를 보더라도 통계적으로 유의하게 최대 조절력이 증가하였다. 또한, 어떤 색상의 렌즈를 착용하였을 때라도 녹색 물체를 볼 때 최대 굴절력이 가장 컸다. 배경색에 따라서도 최대 조절력이 변화되어, 배경색이 빨간색일 경우 흰색일 때보다 최대 조절력이 감소하였다. 반대로, 녹색 배경색인 물체를 볼 때는 적색 배경이나 흰색 배경일 때 보다 최대 조절력이 컸다. 착색렌즈 중에서는 회색렌즈가 최대 조절력을 가장 적게 증가시켰으며, 녹색렌즈가 가장 크게 증가시켰다. 최대 조절력이 9 D 이상인 피검자의 수는 초록색 배경에서는 회색렌즈를 사용하였을 때 12.5%, 갈색렌즈는 21.3%, 녹색렌즈는 22.5% 이었으나, 빨간색 배경에서는 각각 5%, 6.5%, 6.5% 이었다. 결론: 이러한 결과로 최대 조절력이 안경렌즈의 색상과 물체 및 배경의 색상에 따라 상이하며, 그로 인하여 적절한 색상의 안경렌즈로 눈의 피로감이 감소될 수 있음을 알 수 있었다.

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칼라공간과 키워드를 이용한 내용기반 화상검색 시스템 설계 및 구현 (A Design and Implementation of a Content_Based Image Retrieval System using Color Space and Keywords)

  • 김철원;최기호
    • 한국정보처리학회논문지
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    • 제4권6호
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    • pp.1418-1432
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    • 1997
  • 일반적인 내용기반 화상 검색 기법은 검색 인덱스로서 칼라와 텍스쳐를 사용하며, 칼라기법인 칼라히스토그램과 칼라쌍 검색 기법은 공간정보와 텍스트가 부족하다. 따라서 본 논문은 칼라공간과 키워드를 결합한 내용 기반 화상 검색시스템을 설계하고 구현하였다. 화상검색을 위한 전처리기에서는 기존의 HSI(Hue, Saturation, Intensity) 좌표계를 사용하였고, 화상으로부터 색채 영역과 비색채영역을 검출해 내었다. 화상의 크시는 200*N 또는 N*200으로 정규화하고 256칼라로 변환시킨다. 칼라 공간으로 칼라 선택을 결정하기 위해서는 배경과 색채를 위한 2개의 칼라히스토그램을 사용한다. 공간정보는 최대 엔트로피 이산화를 사용함으로써 얻어진다. 키워드는 화상의 종류, 칼라, 모양, 위치, 크기를 선택 가능하도록 했으며, 입력되는 색채에 대해서는 한국 공업 규격의 유채색과 무채색 15가지 색으로 제한하였다. 화상검색 방법은 유사도 검색의 특징 키로 사용하였고, 화상 검색시 특정 성분의 가중치에 따른 검색을 위해 사용자는 질의어 입력시 칼라공간 ${\alpha}(%),\;키워드\;{\beta}(%)$등의 가중치를 화상 내용 특징에 따라 그 값을 조절하여 부여할 수 있는 방안을 개발하였다. 질의 화상에 대한 칼라공간, 키워드와 같은 추출된 특징중 하나의 특징으로 검색 실험한 결과는 가중치를 부여하여 실험한 결과보다 검색 효율이 낮았으며 가중치를 부여한 경우 측정된 파라메타의 평균치는 Precision(0.858), Recall(0.936), RT(1), MT(0)를 보임으로써 칼라공간, 키워드 내용기반 화상 검색 시스템들 보다 높은 검색 효율을 입증해 보였다.

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Pineal Photoreceptor and Ganglion Cells in River Lamprey, Lampetra japonica -Two Types of Pineal Ganglion Cell-

  • Tamotsu, Satoshi;Kinugawa, Yoshimi;Kawano, Emi;Watanabe, Mai;Samejima, Michikazu;Oishi, Tadashi
    • Journal of Photoscience
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    • 제9권2호
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    • pp.21-24
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    • 2002
  • Pineal organs of poikilotherm vertebrates transform the environmental light information into a humoral message and a neuronal activity. The former is melatonin, and the latter is modulation of the impulse in ganglion cells. The ganglion cells are physiologically classified into luminosity (achromatic) type and chromatic one, as the neural activity is modulated in two ways. We attempted to classify the pineal ganglion cells with morphological characteristics by means of the three- dimensional reconstruction method. In the pineal ganglion cells of river lamprey, there are two different features, oval and spherical. For comparison of their projection region in the brain, the tracing investigation was also carried out. The application of the neural tracer near mesencephalic tegmentum showed that only oval-shaped ganglion cells were labeled in the pineal organ. These results suggest that the oval-shaped ganglion cell is functionally different from the spherical one.

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지방도시 환경색채현황에 대한 기초조사 - 군산시를 중심으로 - (The Study on Landscape Colors in Gunsan City)

  • 이지숙
    • 한국주거학회논문집
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    • 제22권5호
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    • pp.29-36
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    • 2011
  • The inconsistent city planning damaged the city's landscape & identity, the old days. Nowadays the central and local governments are interested in the city's landscape design for residents, economic reason, etc. Color is most efficient one of design elements to improve a city landscape. So to establish the uniqueness and beauty of Gunsan city landscape, this study was performed to find out Gunsan landscape colors to survey the landscape color, by priority. There are nature environment of sea, river, reservoir, mountains and plain and artificial environment of buildings used japanese occupation period, them in early modern era and modern things. It found out the color palette has extracted from the present colors in the city landscape. There were mostly colors with low chroma, middle value and the next thing was them with high value. The blue among hue was strong. The Chroma was very low to be concentrated in $L^*$ axis. So achromatic color or blue/green of middle value and low chroma were recommended for dominant color and the similar color of former color was good for assort color in Gunsan city landscape.

움직임 보조를 위한 무릎 보호대 디자인 제안: 선호도 및 가상 착용 이미지를 이용한 만족도 평가를 중심으로 (Suggestions of Movement-Assistive Knee Pad Designs: Focusing on Preference and Satisfaction Evaluations Using Virtual Avatars' Wearing)

  • 박수진;구수민
    • 한국의류산업학회지
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    • 제22권3호
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    • pp.271-286
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    • 2020
  • This study evaluated designs via the consumers' function and design preferences survey for using product design images, virtual avatar wearing images and product explanations that identified consumers' function and design preferences for knee protection pads as well as to develop movement assistive knee pad designs. We developed Design A for men and Design B for women. For Design A, the front of the knee supports muscles and alleviates pain with a hole. Mesh material with good ventilation was applied to enhance wearing comfort. The color was achromatic for a modern style, and the hook fastener and loops enabled easy wear and removal of the pad while controlling size and pressure strength. For Design B, taping details seamlessly support muscles in the knee area with fabrics less than 0.1 cm thick and with long sleeves in the diverse sizes. The design's satisfaction assessment showed that potential consumers were satisfied with Design A and Design B for overall design and functional features. Over 77% wanted to use/wear and purchase designs; in addition, over 78% expected it would help with walking and relieve knee pain. The results can be helpful for designers when deciding designs for manufacturing and commercializing kneepad products.

융의 심리학적 이미지 해석을 통한 인테리어 테라피 사례연구 - 미국 Bravo TV 방송 프로그램에 나타난 주거공간 중심으로 - (A Study of Interior Therapy based on Psychological Image Interpretation by Carl Jung - Focusing on Residential Spaces of in the US -)

  • 장미정
    • 한국실내디자인학회논문집
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    • 제27권2호
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    • pp.128-142
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    • 2018
  • This study is to analyze a case of US Bravo TV program, Interior therapy with Jeff Lewies, based on analytical psychology by Carl Jung, to understand characteristics of interior therapy in psycho-therapeutic viewpoint. Case study among descriptive observation approaches was chosen as a study method while the study range was set as 8 episodes in 2012 and 8 episodes in 2013. As a result of study, future application of therapy to domestic interior design was suggested as 3 types the following; a) Paranoid and storage disorder type that pursues space design by horizontal elements with a sense of comfortable, starting from throwing things away, and suggests whiteness based on desire to be cleaned; b) Individual taste type starting from give and take between members and recognizing one another. e.g., aligning the U-shaped sofa and giving a sense of comfort by using the achromatic colors; and c) Workroom type involved with the face-to-face type of space design and arrangement of mild grey and brown colors. Finally, this study has its significance in suggesting the direction for new occupational clusters in the field of domestic space design (interior, architecture, environment design, etc.), which could be utilized as a basic data for training program development to foster interior therapy professionals.

영화 여주인공의 의복이미지에 나타난 전문직업여성의 복장 유형의 변화연구(1) (A Study on Clothing Appearance for a Career Woman according to the Heroines' Clothing in Cinema(I))

  • 김문영
    • 대한가정학회지
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    • 제40권11호
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    • pp.157-170
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    • 2002
  • This study is an attempt to establish an aesthetic and fashion sense of the heroine's image and fashion according to the social environment which is related to fashion transformation. Also, this study modem society's need for specific social occupational roles through fashion and clothing in cinema. first, individual people are estimating their social position and ability by his/her fashion style. Modem fashion styles are changing into various, complicated, gorgeous and attractive styles; however, the needs of professional women's clothing styles are fairly conservative. Second, classical, closed, and unobtrusive fashion styles are appearing in modem cinema's clothing depending on professional women's expertise in fashion styles. Third, changes of styles are varied by their colors and clothing design. Colors had not changed very much during the last 30 years; however, in the 1980's, white and grey colors, in the 1990's black and achromatic colors, and in the beginning of this century dark green and brown and also diverse colors have been used. But the brightness is so light and expressed by a quiet and cold style. Furthermore, the inner images are judged by their forms which is determined by how people choose their clothing styles. Consequently, women's clothing styles easily appear as a result of their preconceived ideas formed by their professional knowledge and ability.

가정용 가구의 색채에 관한 소비자 연구 (A Study on Consumers' Recognition of Home Furniture Colors)

  • 조숙경;임광순
    • 한국가구학회지
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    • 제28권4호
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    • pp.326-331
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    • 2017
  • The survey of consumers' recognition of home furniture colors was conducted targeting 32 males and 68 females from 20's to 60's. The results are as follows. The first, in terms of colors, when they were asked of where was the most important place in a house, the first place they thought of was the color of wallpaper and the second was the color of furniture. The second, in terms of home furniture colors, a sofa was put the most importance on and a living room dresser was the next. The third, they preferred natural wood color as home furniture and the next color was achromatic colors. The forth, the most preferred wood color was a walnut and the next was a ginkgo tree color. The fifth, the most preferred color was white and the next was tertiary colors when they were asked to paint their home furniture. The sixth, 88% participants in the survey responded that home furniture colors would much influence on our lives. In conclusion, most consumers recognize the importance of furniture colors and they prefer the use of hardwood for a natural feeling as long as they can afford.