• 제목/요약/키워드: Visual characteristics

검색결과 2,510건 처리시간 0.037초

Wavelet변환을 이용한 시각자극에 의해 유발되는 뇌파의 분석에 관한 연구 (A Study or the Analysis of EEG Evoked by Visual Stimulation using Wavelet Transformation.)

  • 김정환;황민철;임재중
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 추계학술대회
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    • pp.455-458
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    • 1997
  • We are exposed to the various external stimuli input from the environment, which cause emotional changes based on the characteristics of the stimuli. Unfortunately, there are no quantitative results on relationship between human sensibility and the characteristics of physiological signals. The objective of this study was to quantify EEG signals evoked by visual stimulation based on the assumption that the analysis of the variability on the characteristics of the EEG waveform may provide the significant information regarding changes in psychological states of the subject. Seven university students were participated in this study. The experiment was devised with eleven experimental conditions, which are control and ten different types of visual stimulation based on IAPS (International Affective Picture Systems). Wavelet transformation was employed to analyze the EEG signals. Most positive and negative emotional response were compared in pairs. The results showed that the reconstructed signals at the decomposition level revealed the different energy value on the EEG signals. Also, general patterns of EEG signals in rest state compare with positive and negative stimulus were found. This study could be extended to establish an algorithm which distinguishes psychophysiological states of the subjects exposed to the visual stimulation.

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감성주거공간디자인을 위한 신소재의 은유적 표현 특성에 관한 연구 (A Study on the Metaphorical Expression Characteristics of New Materials for Emotional Housing Space Design)

  • 정선희;서지은
    • 한국주거학회논문집
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    • 제23권3호
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    • pp.71-78
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    • 2012
  • This study analyzed metaphorical characteristics of composite materials in terms of a visual aspect on a new material that is applicable for housing space. The results are as follows. First, the recent trend of housing space tends to stimulate emotions of residents through visual finishing materials, and for this reason, visual expression of a new material that is applicable to finishing materials plays an important role. Second, convertibleness, association and duplicity were selected as items of metaphorical expressions through the precedent studies. Third, most of combinations of materials were shown different from the existing materials in an expressive characteristic of composite materials through analysis, and application of a technology showed a different visual effect of patterns and textures from the existing materials. This implies that visual expression and directing are being attempted using such technology on finishing materials of housing space with development of digital technologies. Fourth, for metaphorical characteristics of composite material for housing space, combination of various materials and a digital technology were applied on convertibleness. For association, a combination of materials that have each different characteristic associated with the third material, and combination with subsidiary material of optical fiber and a digital technology were appled for duplicity. Data obtained from the results of this study has high efficiency in planning finishing materials for emotional housing space in future, and it will be basic data for a study on development of new finishing materials.

경관경험의 향상을 위한 문화.역사 지역의 경관계획 및 관리에 대한 연구 - 경주시 문화재와 주변지역을 중심으로 - (Landscape planning and conservation for cultural -historical places to improve landscape experience-focused on Kyoung Ju city-)

  • 이영경;민창기
    • 한국조경학회지
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    • 제26권2호
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    • pp.155-165
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    • 1998
  • Cultural-historical places, due to their strong symbolic sense of place shared in various people, have important impacts on people's cognitive and emotional reactions. Especially, the visual characteristics of surrounding areas of cultural -historical places directly influence the way the places are perceived, because they function as a visual background of the places. This study examined how the visual characteristics of surrounding landscape of cultural-historical places nfluenced the perception of the places. The visual characteristics of the surrounding landscape was minipulated by a computer simulation in the two aspects; quality and scale. The quality of the simulated landscape was divided by two kinds : natural and artificial . The scale of the simulated landscape was classified by three kinds : 1/3 of the middle ground, 2/3, and 3/3. Specifically, in each photo simulation, simulated natural or artificial background was introduced up to 1/3, 2/3 or the full height of historic monument. After a computer simulation, people's cognitive and emotional reactions to the simulated slides were investigated. The results showed that the quality of surrounding landscape have a great impact on all the cognitive and emotional reactions investigated. On the vontrary, the scale of surrounding landscape was found to habve an impact on partial reactions, such as all the emotions, part of the cognitions, and visiting preference only. The results revealed that the visual characteristics of surrounding landscape should be considered as the crucial elements in planning of cultural-historical places. Based on the study results, several suggestions were made for the landscape planning and conservation for cultural-historical places and historic cities.

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동계올림픽 통합 아이덴티티의 시각적 구성요소와 특성 연구 - 밴쿠버, 소치, 평창 동계올림픽 사례중심으로 (A Study of the Visual Components and Characteristics of the Integrated Identity of Winter Olympics - Focused on the Cases of the Vancouver, Sochi, and Pyeongchang Winter Olympics)

  • 이영화
    • 한국융합학회논문지
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    • 제9권6호
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    • pp.155-162
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    • 2018
  • 동계올림픽의 통합 아이덴티티 디자인 정립을 위해 영향을 미치는 시각적 구성요소의 특성을 알아보고자 사례연구를 실시하였다. 조사 대상은 2010년 이후 열린 밴쿠버, 소치, 평창 동계올림픽으로 한정하였다. 1차 조사에서는 시각적 구성요소의 특징을 살펴보고, 2차 조사에서는 디자인의 특성인 일관성, 가변성, 확장성, 연계성을 분석하여 다음과 같은 결과를 도출할 수 있었다. 동계올림픽의 통합 아이덴티티는 시각적 구성요소들의 통합적인 인식을 주는 일관성을 유지하고 있었으며, 사용에 따라 가변성을 보였다. 또한 서로간의 연계적인 이미지를 유지하였다. 그러나 다양한 변화 속에서도 적용매체에 따라 유연하게 활용되는 확장성은 엠블럼과 슬로건에서 미비한 것을 알 수 있었다. 이러한 결과들이 향후 올림픽 엠블럼 디자인 제작에 효과적인 통합 아이덴티티 전략수립을 위한 기초자료로 활용이 되기를 바란다.

Surrealistic Characteristics Expressed in Fashion Ads

  • Ko Hyun-Zin
    • International Journal of Costume and Fashion
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    • 제5권2호
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    • pp.68-77
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    • 2005
  • In contemporary advertising market, one of main trends is to speak surrealistic visual language which provides 'enjoyable spectacles'. Specially, in the beginning of 21st century, there discovered more and more exhibitions and discourses about surrealism reinterpreted from the viewpoint of postmodernism. Surrealism as a creative style of expression based upon free association, has been a great inspiration for fashion ads for commercial communication as well as fashion design since its origin. However, there has been ignored the idea of analyzing surrealistic image expressed in fashion ads in spite of their flood. Accordingly, the purpose of this study is to grasp its cultural meaning through analyzing aesthetic characteristics of surrealistic image expressed in fashion ads. It will provide a better understanding of surrealistic image in fashion ads reflecting popular taste and preference directly as popular visual culture, focusing on post modern context. A case study of surrealistic fashion ads limits to TV or print commercials and digital ads as image ads stimulating visual expressions. The Results can be summarized as follows. Surrealism is an avant garde style which deconstructs the established meaning system as well as the existing formalistic order and then put them together in the frame of 'dream' and 'unconsciousness'. Defamiliarization questioning the whole edifice of representation can be adapted to. By means of paradox and metaphor, unfamiliar new visual world can be represented. The plastic characteristics of surrealistic image in fashion ads are founded as surrealistic styling of time and space, distortion of object by methods of automatism, depaysement, parody and trompe-l'oeil which bring about the deconstruction of gestalt. Aesthetic values of surrealistic fashion ads appear as dualistic representation, allegoric symbolism, fantastic romanticism. Ultimately they lead to marvelous. mysterious, humorous visual effects. Foster reinterpreted these effects of surrealism from Freud's 'Uncanny Concept'. 'Uncanny' means the phenomenon recurring to familiar being defamiliarized by repression. Surrealistic fashion ads strengthen this shocking effect more and more dramatically in company with our post modern needs for fantastic adventure and thrilling spectacle. It can be thought that surrealistic fashion ads reflects uncanny as an alternative which can relieve us of our stress and anxiety and which realize our potential desire in contemporary post industrial stage.

간결함과 명료함을 위한 디스플레이 채도에 따른 밝기의 시각적 특성 연구 (Visual characteristics of brightness according to display saturation for conciseness and clarity)

  • 홍지영
    • 한국인터넷방송통신학회논문지
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    • 제22권2호
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    • pp.15-20
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    • 2022
  • 색채는 크게 세 가지 속성인 색상, 명도, 채도로 구성되어 있으나 색채를 시감적으로 인지하는데 있어서 각 속성을 구분하여 독립적으로 인지하지 않는다. 채도와 밝기 관련 기존 선행된 연구들은 채도 속성의 순도 정도에 따라 밝기 속성이 다르게 느껴진다는 결과를 유의미하게 얻을 수 있었으나 정신물리학적 실험 대부분이 감산 혼합을 활용한 사례이기에 디스플레이 기반의 색채 인지 기초 연구가 필요하다. 본 연구에서는 자체 발광 시스템을 보유한 디스플레이 기반에서 채도와 밝기 관련 시각적 특성을 알아보고자 정신물리학적 실험을 진행하고 이를 분석하였다. 가산 혼합 형태의 디스플레이에서 일정한 밝기를 선정한 후 주요 색상의 채도를 조정하여 실험을 진행하였다. 본 연구에서는 진행된 실험 결과를 분석하여 감산 혼합과 동일한 결과가 산출되는지 알아보고 색채 인지 특성에 대한 연구 자료로써 유의미 여부를 정의한 후 향후 연구방향을 제시한다.

텔레비전 영상 자막의 시각적 구성 형식과 특성 (The composition for Television visual character and characteristics of frame)

  • 함현
    • 한국산학기술학회논문지
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    • 제9권4호
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    • pp.992-999
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    • 2008
  • 본 연구의 목적은 방송 프로그램 제작에 있어서 중요한 역할을 하고 있는 영상 자막의 특성과 영상 커뮤니케이션 기능적인 관점에서 나타나고 있는 현상을 살펴보고자 한다. 다양한 방송 프로그램에서 활용되고 있는 영상 자막의 기능은 단순하게 간략한 정보를 전달하는 기능적인 역할을 수행하였다. 그러나 최근 다양한 방송 프로그램에서 활용되고 있는 영상 자막의 기능과 효과는 새로운 형태로 발전되고 있는 추세이다. 그러므로 본 논문에서는 텔레비전 프로그램에서 활용되고 있는 영상 자막의 특성을 고찰하고, 장르별 프로그램에서 사용되고 있는 영상 자막의 사례를 통한 다양한 현상들을 살펴보았다.

Developing Visual Complexity Metrics for Automotive Human-Machine Interfaces

  • Kim, Ji Man;Hwangbo, Hwan;Ji, Yong Gu
    • 대한인간공학회지
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    • 제34권3호
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    • pp.235-245
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    • 2015
  • Objective: The purpose of this study is to develop visual complexity metrics based on theoretical bases. Background: With the development of IT technologies, drivers process a large amount of information caused by automotive human-machine interface (HMI), such as a cluster, a head-up display, and a center-fascia. In other words, these systems are becoming more complex and dynamic than traditional driving systems. Especially, these changes can lead to the increase of visual demands. Thus, a concept and tool is required to evaluate the complicated systems. Method: We reviewed prior studies in order to analyze the visual complexity. Based on complexity studies and human perceptual characteristics, the dimensions characterizing the visual complexity were determined and defined. Results: Based on a framework and complexity dimensions, a set of metrics for quantifying the visual complexity was developed. Conclusion: We suggest metrics in terms of perceived visual complexity that can evaluate the in-vehicle displays. Application: This study can provide the theoretical bases in order to evaluate complicated systems. In addition, it can quantitatively measure the visual complexity of In-vehicle information system and be helpful to design in terms of preventing risks, such as human error and distraction.

로봇의 시각시스템을 위한 물체의 거리 및 크기측정 알고리즘 개발 (Development of a Robot's Visual System for Measuring Distance and Width of Object Algorism)

  • 김회인;김갑순
    • 제어로봇시스템학회논문지
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    • 제17권2호
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    • pp.88-92
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    • 2011
  • This paper looks at the development of the visual system of robots, and the development of image processing algorism to measure the size of an object and the distance from robot to an object for the visual system. Robots usually get the visual systems with a camera for measuring the size of an object and the distance to an object. The visual systems are accurately impossible the size and distance in case of that the locations of the systems is changed and the objects are not on the ground. Thus, in this paper, we developed robot's visual system to measure the size of an object and the distance to an object using two cameras and two-degree robot mechanism. And, we developed the image processing algorism to measure the size of an object and the distance from robot to an object for the visual system, and finally, carried out the characteristics test of the developed visual system. As a result, it is thought that the developed system could accurately measure the size of an object and the distance to an object.

초음파 영상을 통한 태아의 모습 제공 여부가 임부의 태아 애착에 미치는 영향 (Effect of Visual Information by Ultrasound on Maternal-Fetal Attachment)

  • 이지영;조정연;장순복;박주현;이영호
    • 여성건강간호학회지
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    • 제8권3호
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    • pp.335-344
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    • 2002
  • Providing visual information about the fetus to the mother by the ultrasound examination was found to be an effective nursing intervention to promote Maternal-Fetal Attachment. In keeping with the purpose of the study, to evaluate the effect of providing visual information by ultrasound on level of Maternal-Fetal Attachment, a non-equivalent experimental group quasi-experimental design was used. The data were collected using Cranley's Maternal-Fetal Attachment Scale(1981) with a research questionnaire that consisted of 16 items on general characteristics and 23 items on Maternal-Fetal Attachment from November 2, 2000 to August 11, 2001. Subjects were 126 pregnant women who were received visual information by ultrasound and 123 pregnant women who did not receive visual information by ultrasound after finishing examination. The data were analyzed by using the SPSS/PC+ window 10.0 version program. The results of this study were as follows: There was no statistical difference in general characteristics between both groups. The scores on Maternal-Fetal Attachment at second trimester show no statistical difference (t=1.123, p=0.263). The scores on Maternal-Fetal Attachment in both groups increased between the second trimester and third trimester. However, the increase was greater in the group receiving visual information by ultrasound as compared to the group which did not receive the visual information(t=-2.152, p=0.032). This result shows that providing visual information about the fetus by the ultrasound examination is effective in increasing Maternal-Fetal Attachment.

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