• 제목/요약/키워드: color features

검색결과 1,192건 처리시간 0.035초

Skin Color Based Facial Features Extraction

  • Alom, Md. Zahangir;Lee, Hyo Jong
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2011년도 추계학술발표대회
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    • pp.351-354
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    • 2011
  • This paper discusses on facial features extraction based on proposed skin color model. Different parts of face from input image are segmented based on skin color model. Moreover, this paper also discusses on concept to detect the eye and mouth position on face. A height and width ratio (${\delta}=1.1618$) based technique is also proposed to accurate detection of face region from the segmented image. Finally, we have cropped the desired part of the face. This exactly exacted face part is useful for face recognition and detection, facial feature analysis and expression analysis. Experimental results of propose method shows that the proposed method is robust and accurate.

헤어와 얼굴의 특징을 이용한 얼굴 검출 (Face Detection Using Features of Hair and Faces)

  • 황동국;이상주;최동진;박희정;전병민;이우람
    • 한국콘텐츠학회논문지
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    • 제5권2호
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    • pp.199-205
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    • 2005
  • 본 논문에서는 영상내의 얼굴과 헤어의 컬러와 기하학적 특징을 이용하는 얼굴 검출 알고리즘을 제안한다. 컬러 특성을 이용하여 얼굴과 헤어의 후보영역을 검출 한 후, 이 영역들의 조도에 대한 편차를 이용하여 배경 영역을 제거한다. 그리고 얼굴과 헤어가 인접하는 기하학적 특징을 이용하여 여러 후보영역 중 실제 얼굴영역을 검출한다. 제안한 알고리즘 성능은 실험 영상에 대한 얼굴의 검출률 실험을 통하여 평가 되었으며, 실험결과 높은 검출률을 보였다.

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보현산천문대 CCD 카메라 제어 소프트웨어 알고리즘 (ON THE ALGORITHM FOR BOAO CCD CAMERA CONTROL SOFTWARE)

  • 육인수;박병곤
    • 천문학논총
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    • 제11권1호
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    • pp.147-161
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    • 1996
  • The development of universal CCD camera control software for all BOAO CCD camera systems is proposed. The new software, running under Sun SPARCstation and motif based X window system with SunOS 4.1.3 operating system, replaces existing control software based on NeXTstation color and NeXTstep 2.1 operating system which is no more produced now. Several new features of the new software is introduced, some of which are 1) the image contrast is enhanced by color manipulation and display, 2) image zooming and trimming, 3) any size of image can be displayed in the scrolled window, and 4) the offset between telescope pointing position and CCD center is easily calculated by alt-azi map. Along with the above new features, the new software has advantages including ease of maintenance and upgrading and elimination of risk caused by hardware damage. Since September 1, the software beta version is being used by observers and there is not seen severe problem regarding the software itself, but several requests to equip more features to the software will be mirrored to future release.

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칼라 인접성과 기울기를 이용한 내용 기반 영상 검색 (Content-based Image Retrieval Using Color Adjacency and Gradient)

  • Jin, Hong-Yan;Lee, Ho-Young;Kim, Hee-Soo;Kim, Gi-Seok;Ha, Yeong-Ho
    • 대한전자공학회논문지SP
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    • 제38권1호
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    • pp.104-115
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    • 2001
  • 본 논문에서는 칼라 인접성과 기울기를 이용한 새로운 내용 기반 영상 검색 방법을 제안한다. 칼라 영상의 특징 정보로 사용되는 칼라 히스토그램은 시점이나 영상의 회전등의 영향을 적게 받고 특징 정보의 계산이 간단하고 빠른 장점이 있지만 칼라의 위치 정보를 나타낼 수 없기 때문에 균일 양자화에 의해 비슷한 히스토그램을 가진 서로 다른 영상을 구별하지 못하고 특징 저장량이 많은 등 단점이 있다. 제안한 방법은 기존의 방법들에서 보편적으로 사용하는 양자화 대신 영상에서의 인접 화소의 칼라 변화량 즉 기울기를 계산하여 보다 정확한 색차를 구함으로써 비슷한 칼라가 서로 다르게 양자화됨으로 인한 오차를 감소시켰다. 동시에 영상의 주요 칼라 구성 특징을 나타나는 칼라 인접성 정보를 추출하여 이진 배열로 표시함으로써 특징 정보의 방대한 저장량을 줄이고 비교속도를 향상시켰다. 실험 결과 기존의 검색 방법에 비하여 제안한 방법은 적은 특징 저장 양으로 외부조건의 변화에 더욱 강건함을 보여주고 있다.

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컬러 동시발생 히스토그램의 피라미드 매칭에 의한 물체 인식 (Object Recognition by Pyramid Matching of Color Cooccurrence Histogram)

  • 방희범;이상훈;서일홍;박명관;김성훈;홍석규
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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    • pp.304-306
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    • 2007
  • Methods of Object recognition from camera image are to compare features of color. edge or pattern with model in a general way. SIFT(scale-invariant feature transform) has good performance but that has high complexity of computation. Using simple color histogram has low complexity. but low performance. In this paper we represent a model as a color cooccurrence histogram. and we improve performance using pyramid matching. The color cooccurrence histogram keeps track of the number of pairs of certain colored pixels that occur at certain separation distances in image space. The color cooccurrence histogram adds geometric information to the normal color histogram. We suggest object recognition by pyramid matching of color cooccurrence histogram.

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뉴미디어 환경의 색채시스템을 적용한 디지털 공간색채 연구 (A Study on the Digital Space Color by Application Color System in New Media Environment)

  • 김선영
    • 한국실내디자인학회논문집
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    • 제20권6호
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    • pp.236-243
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    • 2011
  • The digital space color of new media environment denied not only the deterministic relationship of designed color and circumjacent color but also the deduced an special elements of digital space color. Such phenomena historical perspective of Gernot Wersig, new media principle of Lev Manovich and remediation of Bolter, J.K & Grusin, R. are expressed in various new media environment across. In particular, development of digital technology is moving away from its previous space color based on scientific, statistical and quantitative perspective by using diverse variables. The following research focuses on the fundamental concept of space color by type, composition of digital space color. The paper reflects on the meaning and concept of contemporary which enables the application of digital space color system on space through advanced technology. The principle of digital space color such as multidimensional malerisch, discontinuous video, vague original and copy, irregular repetitiveness of 'copy of copy', selective color of observer, experiential color of observer, and etc. makes it possible to extract the expressed element and method of digital space color. Meanwhile, the features of digital space color such as divided field of form, non-systematized of process and collage of communication can be inferred from case analysis.

패션스토어에 적용된 표피색채의 표현특성 연구 (A Study on the Expressive Characteristics of Epidermal Color Applied to the Fashion Store)

  • 김선영
    • 한국실내디자인학회논문집
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    • 제21권4호
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    • pp.138-145
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    • 2012
  • The epidermal color is one of factors the space for ages. Instead of the epidermal color expression, it made with material and decoration under structure for make shade of meaning before have the new media. But now a days, the epidermal color of the fashion store is getting free owe to the development of color harmony, has a great notion that gets out of the subordinate from color, and it is a emphasized factor with expression and self-control. The epidermal color of the fashion store makes an effort to accept the development and changing of new media. It should show that there role and function is changing constantly according to a new technology, and it gave a motivation for reanalysis about existence and expression of the epidermal color. The purpose of this research is that look around the feature of the epidermal color system, elements, and principle. Then contemporary fashion store is expressive characteristics of epidermal color. Using epidermal color is not common, we can find lots of the case with surface color, layer color, interface color, though. The paper reflects on the meaning and concept of fashion store which enables the application of expressive characteristics on space through advanced technology. Meanwhile, the features of epidermal color such as immateriality of process and communication can be inferred from case analysis.

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한 . 중 . 일 궁궐건축의 색채 특성 비교연구 (A Comparative Study on the Color Design Element in Traditional Palaces of Korea, China and Japan)

  • 박영순;이현정;조은숙;진경옥
    • 한국실내디자인학회논문집
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    • 제13권2호
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    • pp.168-175
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    • 2004
  • The purpose of this study is to ascertain the color design element in traditional palaces among those in the neighboring three nations of East Asia, notably Korea, China and Japan. Undoubtedly the ultimate goal to be pursued, by so doing, has to be inquiry into the identical prototype of Korean color design element. The East Asian color palette is rich in symbolic meaning, mostly these color are in harmony with the nature and human life. In this study, the color of the traditional palace is characterized by the actual color use. The colors of China are various, but they concentration R~G, middle/high level of chroma. In Korea, the colors in palace are distributed in YR/GY, middle/low chroma, relatively higher value. While the major features of Japan color are YR/achromatic with middle/low levels of value and chroma.

마크 로드코의 색면추상에 표현된 색의 확장성 연구 (A Study on the Color Extendability in Mark Rothko's Color-Field Abstract)

  • 김선영
    • 한국실내디자인학회논문집
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    • 제22권1호
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    • pp.239-246
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    • 2013
  • This study is aimed at understanding the color extendibility of color-field abstract through Mark Rothko's paintings. Color extendibility is a structure applied by Mark Rothko. He simplifies it and by pursuing autonomy and immediacy of the color itself, including surface color and the front of color-field, Rothko creates value through motions in his square paintings of non-fixed shapes. Chapter 2 revisits the meaning of color in abstract expressionism and explains the principle of color-field by applying the concept of ergon and parergon. In chapter 3, the principle, processes, methods, techniques of expression were studied as a basis to understand color extendibility and color-field abstract. In chapter 4, the works of Mark Rothko were analyzed based on his multiform paintings(1946-1948), number and untitled(1949-1957), and black paintings(1958-1970) in order to identify, in the final chapter, the features of color extendibility in Rothko's works. According to the above research, the thesis successfully concludes that the artist's reconstruction of reality and readjustment of transcendent reality are reproduced via color extendibility, the movement of color-field.

피터 아이젠만 건축의 색채사용특성에 관한 연구 (A Study on the Characteristics of Color for Peter Eisenman Architecture)

  • 이선민;유연숙
    • 한국실내디자인학회논문집
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    • 제18권2호
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    • pp.61-70
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    • 2009
  • Architectural color would be understood as a essential tool to be reflected the architect's value criteria, thinking process and the specific methodology. This study was established the characteristics of color use correlated with Eisenman's architectural features based on his point of view. At first, it could be organized with data and use the color in view points with the becomming process. Especially it would be expressed the color as a trace of unsynchronized formation. Second, it was introduced the color by graphics engaged with form, to be expressed the dividing, folding, reiteration for deliver of escape from graphic thinking process. Third, it was analyzed to be imported the color to have a multi-lateral space experience in center of user's space recognition and behavior by introduction of color. Finally, it could be inducted the consistent color by viewpoint of interfacial between interior and exterior environment, communicated with strong meaning by conversion from interior elements to color from these processes. A characteristics of Eisenman's architecture color is reflected his thinking process in architecture color as it is and can be understand of 'becomming process use of color' as a tool that is corresponded in form creation. Specially, it would be kept continuous viewpoint of interior and exterior space, giving user color as a viewpoint of linking space, enable many-sidedness experiences through space.