• 제목/요약/키워드: Expression Characteristic

검색결과 681건 처리시간 0.031초

얼굴 표정 인식을 위한 방향성 LBP 특징과 분별 영역 학습 (Learning Directional LBP Features and Discriminative Feature Regions for Facial Expression Recognition)

  • 강현우;임길택;원철호
    • 한국멀티미디어학회논문지
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    • 제20권5호
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    • pp.748-757
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    • 2017
  • In order to recognize the facial expressions, good features that can express the facial expressions are essential. It is also essential to find the characteristic areas where facial expressions appear discriminatively. In this study, we propose a directional LBP feature for facial expression recognition and a method of finding directional LBP operation and feature region for facial expression classification. The proposed directional LBP features to characterize facial fine micro-patterns are defined by LBP operation factors (direction and size of operation mask) and feature regions through AdaBoost learning. The facial expression classifier is implemented as a SVM classifier based on learned discriminant region and directional LBP operation factors. In order to verify the validity of the proposed method, facial expression recognition performance was measured in terms of accuracy, sensitivity, and specificity. Experimental results show that the proposed directional LBP and its learning method are useful for facial expression recognition.

Epigenetics by DNA Methylation for Normal and Cloned Animal Development

  • Shiota, Kunio
    • 한국발생생물학회:학술대회논문집
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    • 한국발생생물학회 2003년도 제3회 국제심포지움 및 학술대회
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    • pp.26-28
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    • 2003
  • "Epigenetics" means the study of heritable changes in gene-activity without changes in DNA sequences. Methylation of the cytosine residue in a CpG dinucleotide sequence is a characteristic of the vertebrate genome. In vertebrates, methylation of DNA mainly occurs at the 5′-position of cytosine in a CpG dinucleotide forming 5-methylcytosine. Methylation of DNA plays a profound role in transcriptional repression of gene expression through several mechanisms. Generally, DNA of inactive genes is more heavily methylated than that of active ones; conversely demethylation of DNA reactivates gene expression in vivo and in vitro.

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다층 점탄성재료의 진동감쇠 특성에 관한 연구 (Vibration Damping Analysis of Multi-Layered Viscoelastic Material)

  • 윤영식;황동환;이상조
    • 소음진동
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    • 제4권4호
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    • pp.487-496
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    • 1994
  • Recently, the application of viscoelastic material in the field of vibration isolation has gradually increased due to its achievement in structural damping capacity, and many of the theoretical and experimental study has been carried out. In this study, the dynamic characteristics of the visoelastically supported cantilever beam, of which govering equation is based on the Bernoulli- Euler equation, is analyzed theoretically and experimentally. Expression for stiffness of multi-layered viscoelastic materal has been developed using variables such as frequency and number of layers, and further, based on this expression, damping characteristic of the beam is investigated with experimental verification.

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EARLY SCREENING OF EXPRESSION OF SV40 DRIVEN LACZ INTRODUCED INTO BOVINE EMBRYOS

  • Nakamura, A.;Okumura, J.;Muramatsu, T.
    • Asian-Australasian Journal of Animal Sciences
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    • 제8권5호
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    • pp.449-454
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    • 1995
  • The present study was conducted to assess gene expression of bacterial lacZ driven by the SV40 promoter at early developmental stages of bovine embryos. The lacZ gene was linearized with BamHI digestion and introduced into the pronucleus by microinjection at 20 hrs after the commencement of in vitro fertilization. Intact bovine blastocysts were not stained with X-Gal, suggesting that there is no endogenous beta-galactosidase activity in these blastocysts. In contrast, the bovine blastocyst cells microinjected with the lacZ gene exerted a characteristic greenish-blue color originating from the bacterial beta-galactosidase activity, albeit at a low rate, i.e. 2.1% of the total fertilized oocytes injected. It was concluded, therefore, that the lacZ gene driven by the SV40 promoter could be used for an indirect screening method in which the presence of transgene is evaluated from the product of transgene expression.

섬유성 이형성증 및 골섬유성 이형성증에서의 c-fos 단백 발현 (Expression of c-fos Protein in Fibrous Dysplasia and Osteofibrous Dysplasia)

  • 박혜림;박용구;김덕환
    • 대한골관절종양학회지
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    • 제5권4호
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    • pp.216-220
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    • 1999
  • The purpose of this study was to evaluate the role of c-fos oncogenes in the development of fibrous dysplasia and osteofibrous dysplasia. The immunohistochemical expression of c-fos protein was evaluated in 15 cases of fibrous dysplasia and 8 cases of osteofibrous dysplasia. Ten cases of fibrous dysplasia were weakly positive with c-fos. Six cases of osteofibrous dysplasia were weakly positive and the remaining two cases were strongly positive. The overall expression of c-fos protein is weaker than high-grade osteosarcoma, thus the implication of c-fos protein is little in the development of these tumors. Fibrous dysplasia and osteofibrous dysplasia share some features of characteristic histology and c-fos expression.

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테크놀로지의 발전이 실내건축디자인에 미친 표현특성에 관한 연구 - 60년대 이후 공공공간을 중심으로 - (A Study on the Expression Characteristics by the Development of Technology In the Interior Design - Focused on the Public Spaces after 60's -)

  • 황병수;최상헌
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2005년도 추계학술발표대회 논문집
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    • pp.139-142
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    • 2005
  • The design of the period after 20th century has rapid change. It is due to the improvement and the change of technology which is composed of the parameter that is the science and the machine after the Industrial Revolution. The technology becomes the criteria of the value and appears to the symbol of the period. The purpose of this study is to define the expression characteristics by the development of technology and to examine how specificly it makes the influence on the change of Interior expression characteristics. Interior design can be expressed more creative and 4th dimensional spaces by the development of technology from the space, form and material side

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전시 공간의 이동 체험을 통한 움직임 표현에 관한 연구 (A Study on the Characteristic of 'Movement' Expression by the Moving Experience in Display Space)

  • 이정미;임채진
    • 한국실내디자인학회논문집
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    • 제5호
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    • pp.9-16
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    • 1995
  • The purposed of this study is searching the characteris-tic of 'Movement' expression by the Moving experience in display space. First, the concept of 'Movement' was defined by visitor's moving experiences according to the time pass and to visual perception. Exhibit cases were analygied to fine the relationships the defined 'Movement' experience with display spaces. But, 'Movement' is related moving experience from the entrance to importance of display space, and that is picked out key word in movement expression. Consequently, two category (visual expression, expres-sion method) to regard on the space design in display space was suggested focused on the concept of 'Movement'.

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얼굴 특징 변화에 따른 휴먼 감성 인식 (Human Emotion Recognition based on Variance of Facial Features)

  • 이용환;김영섭
    • 반도체디스플레이기술학회지
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    • 제16권4호
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    • pp.79-85
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    • 2017
  • Understanding of human emotion has a high importance in interaction between human and machine communications systems. The most expressive and valuable way to extract and recognize the human's emotion is by facial expression analysis. This paper presents and implements an automatic extraction and recognition scheme of facial expression and emotion through still image. This method has three main steps to recognize the facial emotion: (1) Detection of facial areas with skin-color method and feature maps, (2) Creation of the Bezier curve on eyemap and mouthmap, and (3) Classification and distinguish the emotion of characteristic with Hausdorff distance. To estimate the performance of the implemented system, we evaluate a success-ratio with emotional face image database, which is commonly used in the field of facial analysis. The experimental result shows average 76.1% of success to classify and distinguish the facial expression and emotion.

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현대패션에 나타난 금속에 관한연구 -1990년대 여성복을 중심으로- (A Study on Metal Expressed in Contemporary Fashion -Focusing on Women's Fashion in 1990s-)

  • 금기숙
    • 복식
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    • 제45권
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    • pp.161-178
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    • 1999
  • In contemporary fashion metal have used which is as the material with a sufficient potentiality of expression which is displayed by an unique characteristic involved only in metal. In this paper metal expressed in contemporary fashion is researched. The first thing the formative characteristic of metal is researched under the consideration of type technique and color of metal used in contemporary fashion. Metals such as gold silver bronze aluminum thin lead and iron are usually used in fashion and those metals are used in various types such a thread fabric board leaf a and cable. Those types of metal as above are applied to the clothing by the techniques of weaving embroidering metal leaf printing or moulding which gives the formative characteristic to the clothing. In color metal has an effect on the colors of surroundings by its smooth and unique luster and its effect of reflection and produces the visual formative characteristic through the effects of contrast. The esthetic will of metal expressed in modern fashion is researched in this study under the facts studied as above. first metal expresses the future oriented esthetic Second metal has the characteristic of attracting the attention Third metal is used as valid techniques to express the artistic formation for clothing escaping from the idea that the clothing is only for wearing. Finally metal is used as an anti-cultural tool of fighting against the existing order or spirit.

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장 미쉘 빌모트의 전시공간에 나타난 실내디자인 표현특성 (Expressional Characteristics of Interior Design Presented in Exhibition Spaces of Jean-Michel Wilmotte)

  • 송가현;김문덕
    • 한국실내디자인학회논문집
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    • 제23권6호
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    • pp.87-94
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    • 2014
  • Today, the growing number of international architects enters the open market of South Korean architecture and interior from exhibition spaces such as art galleries to buildings of major companies. Establishing new local landmarks, their works have a considerable influence on the development of architecture. Among many, French architect Jean-Michel Wilmotte has worked consistently in South Korea. The purpose of this study is to analyze and put together the expression characteristic of the interior design in his exhibition spaces including Gana Art Gallery. Jean-Michel Wilmotte has designed based on the history, culture, society, and arts in France and other European countries, and is influenced by architects like Charles Rennie Mackintosh, Josef Hoffmann, and Carlo Scarpa. Such an influence is shown in the form of contrast between verticality and horizontality as well as the fortification in his modern classical characteristic, which is one of his expression characters. In his work of improving the ancient architecture, Wilmotte is good at creating a modern space through contextual expression, and the textural contrast between materials of the past and the present. Thus I performed an analysis of the expression characteristic of the interior design in National Museum of Contemporary Art of Chiado in Lisbon, Cognac Hennessy Museum in France, Gana Art Gallery in Korea, Mus$\acute{e}$e du Pr$\acute{e}$sident Jacques Chirac in Sarran, France, Ullens Center for Contemporary Art (UCCA) in Beijing, and lastly Mus$\acute{e}$e d'Orsay in Paris. The results show that he maintains the spatial context by applying contemporary design to the preserved existing structure, continues the flow of exhibition through the lightings in the corridors and on the ceiling, and seeks for a balance by adding vertical or horizontal elements to the elevation. In the interior, the staircase and exhibition structure are turned into objects, and the contrasting texture of the wall vitalizes the space. Wilmotte redesigns the space of the past and the present by using indirect joint that allows an organic connection of the old and new structures, and by minimizing the conflict between the two elements through prefabrication. The expression character of his interior design will be potential resources for architects and interior designers to develop their own design languages.