• 제목/요약/키워드: visual analysis

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도시하천의 자연도평가 및 타당성검토에 관한 연구 (A Study on Naturalness Assessment and Feasibility of Urban Stream)

  • 김광수;안승섭
    • 한국환경과학회지
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    • 제23권1호
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    • pp.143-152
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    • 2014
  • The results which are from naturalness assessment and visual assessment was examined to accomplish a classification, a conclusion, a comparison and an analysis. Also statistical test was examined to identify applicability of the survey to other rivers according to the result of visual assessment. As a result of naturalness assessment and visual assessment, evaluation rate of Geumho river is the highest rank of the grade as 2.5. Also t-test was examined to apply items of visual assessment at other rivers through differences in means of river naturalness rates from which visual assessment results. Most of differences in means of river naturalness rates are significant. Thus assessment criteria can be applied to other rivers to find out unique characteristics because each item has independent characteristics.

적정 수면폭.하천폭비 산정을 위한 하천경관의 시각적 선호요인 분석 - 영산강과 섬진강을 중심으로 - (Analysis of Factors in Visual Preference for River Scenery to estimate the Optimal Ratio of Water Surface Width.River Width - With a Focus on the Youngsan and Sumjin Rivers -)

  • 유상완;이주헌;홍형순
    • 한국조경학회지
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    • 제35권1호
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    • pp.28-35
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    • 2007
  • The purpose of this study is to evaluate the visual preference factors for river scenery, which can vary according to changes in water levels, to estimate the optimal ratio of water surface/river width. Five locations on the Youngsan and Sumjin Rivers were selected as representative samples and field survey data such as channel geometry with water levels were prepared to develop the slide of river scenery, To estimate the level of satisfaction in river scenery, slides of 4 different water levels at each of the representative locations were developed through questionnaire. To analyse the correlation between the visual preference for river scenery and preference factors, a multi regression analysis method was adopted in this study. According to the results of the multi regression analysis, Factor B(Aesthetic factors) have the greatest affect on visual preferences and Factor A(A Feeling of Open space and Physical factors) affect significantly to visual preferences for river scenery. The results of analysis shows that the most preferred W/B ratio varies from 0.5 to 0.7 and this result indicates that many people prefer high levels river flow to maintain a natural and harmonious view of rivers. The results of this study will contribute to the field of river landscape design and river restoration projects in order to maximize the human being's satisfaction as a part of nature.

아이트래커를 병행한 감각통합치료가 발달장애아동의 감각처리 및 시지각에 미치는 영향 (Effect of Sensory Integration Therapy Combined with Eye Tracker on Sensory Processing and Visual Perception of Children with Developmental Disabilities)

  • 권소현;안시내
    • 대한감각통합치료학회지
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    • 제21권3호
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    • pp.39-53
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    • 2023
  • 목적 : 본 연구는 발달장애아동에게 아이트래커를 병행한 감각통합치료가 감각처리 및 시지각에 미치는 효과를 알아보고자 하였다. 연구방법 : 본 연구의 설계는 단일대상연구의 대상자간 중다기초선 설계이며, 중재는 아이트래커를 병행한 감각통합치료를 적용하였다. 기초선 기간과 중재 기간의 매 회기 평가로 시각-운동 속도와 단속적 눈의 움직임을 평가하였으며, 사전·사후 평가로 감각프로파일, 한국판시지각발달검사, 선잇기검사를 실시하였다. 매 회기 평가와 사전·사후 평가는 시각적 분석 및 경향선 분석을 통해 중재의 효과를 연구하였다. 결과 : 회기별 평가 결과, 시각-운동속도와 단속적 눈의 움직임에서 모든 아동의 경향선 기울기가 기초선기간보다 중재기간에 급격하게 증가하였다. 사전·사후 평가결과, 감각처리에서는 움직임, 몸위치, 시각의 감각처리가 또래보다 많음에서 또래와 유사 수준으로 변화하였으며, 시지각에서는 모든 아동의 시각통합능력이 증가하였다. 또한, 아동의 시각추적 및 시각-운동 능력의 향상을 확인하기 위해 실시한 선잇기검사 결과, 모든 아동이 사전보다 사후에 수행시간이 감소하였다. 결론 : 발달장애아동의 아이트래커를 병행한 감각통합치료는 감각처리 및 시지각에 긍정적인 영향을 미쳤으며, 최근 기술의 향상과 스마트기기의 보급과 맞추어 아동의 흥미와 동기를 부여할 수 있어 임상적으로 중요한 역할을 할 것으로 사료된다.

대학생의 동적시력에 관한 연구 (The Study of Kinetic Visual Acuity in College Students)

  • 심문식;김상현;강혜숙;심현석
    • 한국안광학회지
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    • 제17권4호
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    • pp.419-424
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    • 2012
  • 목적: 대학생의 동적시력, 시력, 굴절이상, 동공크기, 손의 반응력 등을 비교 분석하여 동적시력 연구에 기초 자료를 얻고자 하였다. 방법: 양안의 LogMAR 시력이 +0.1 이상인 안경광학과 학생 남녀 각각 39명을 대상으로 동적시력계(KOWA AS-4A), 손의 반응력 프로그램, 자동굴절검사기를 이용하여 측정하였고, 그 결과를 이용하여 동적시력의 남녀 차이와 검사 항목간의 상호 관계를 알아보았다. 결과: 남자의 경우는 동공크기 6.00 mm, 손의 반응력 0.23 msec, 등가구면굴절력 -Q1.66 D, 시력 -Q0.07, 동적시력 0.59로, 여자는 동공크기 5.86 mm, 손의 반응력 0.24 msec, 등가구면굴절력 -Q2.08 D, 시력 -Q0.02, 동적시력 0.46으로 각각 나타났다. 동적시력에서는 남녀 유의한 차이를 보였으나, 시력, 굴절이상, 손의 반응력, 동공크기 등은 유의한 차이를 보이지 않았다. 또한 동적시력과 좌안의 시력이 r=-Q0.406으로 검사 항목 중 가장 높은 상관성을 보였고, 전체적으로는 시력의 증가와 굴절이상의 근시량 감소에 따라 동적시력이 높은 것으로 나타났다. 결론: 남자 대학생이 여자 대학생 보다 동적시력이 높은 것을 알 수 있었고, 원거리 시력이 동적시력과 관계가 있는 것을 알 수 있었다.

재래시장의 시각적 점포환경 속성에 따른 재래시장 패션점포의 현황분석 (The Situation Analysis of Fashion Retail Store According to Attributes of Visual Store Environment in Korean Traditional Market)

  • 박현희;전중옥
    • 대한가정학회지
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    • 제46권6호
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    • pp.1-11
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    • 2008
  • The purpose of this study is to find the component factors and attributes of visual store environment and to suggest visual merchandising strategies which fit for fashion retail store in Korean traditional market. For the study, observation and in-depth interview were executed for consumers who had purchase experiences at Korean traditional market in city area. The results were as follows. First, the component factors of visual store environment for Korean traditional market were external factor, internal factor, and structural factor. Second, the attributes of visual store environment in Korean traditional market were approach convenience, cleanness, attractiveness, publicity, efficiency, and informativeness. On the basis of these six attributes, real states of fashion retail store in Korean traditional market were analyzed. This study has a meaning in confirming the possibility of differential approach method on the basis of the attributes of visual store environment in Korean traditional market.

The Hierarchy of Images according to Construction Factors of the Flared Skirts

  • Lee, Jung-Soon;Han, Gyung-Hee
    • 패션비즈니스
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    • 제13권6호
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    • pp.137-146
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    • 2009
  • This study analyzed hierarchy of image for visual evaluation of flare skirt. This study analyzed expression words about flare skirt with frequency data of image expression words with different length and volume of flare. Stimuli for the study were set to be 4 different volume of flare ($90^{\circ}$, $180^{\circ}$, $270^{\circ}$, $360^{\circ}$) and 3 different length of skirt(48cm, 58cm, 68cm). Stimuli were made by using I-Designer which is Virtual Sewing System. From simulation of flare skirt, the subjects were asked to write down suggested adjective freely and selected 210 adjectives. With this, we chose total 38 adjectives considering frequencies in the pre-study. And we analyzed the combination process of expression words according to construction factor of flare skirt and hierarchy of image from dendrogram which was resulted by hierarchical cluster analysis. 'Feminine' got high score in all 12 flare skirt. When the skirt was short, it was vivid, and as the skirt got longer, ordinary and pure image showed. Also, as the volume of flare got larger, the average of visual effect was higher than visual image. Visual hierarchy construction according to construction factors of flare skirt could be divided into visual image and visual effect, and visual image was shown to be form 'A type - large volume of flare and short skirt length', 'H type-small volume of flare and short skirt length' and 'X type - large volume of flare and long skirt length'.

차폐유형과 차폐도를 달리한 패럴랙스(Parallax) 공간의 시각 선호도 (An Analysis of the Visual Preference on Parallax Space by Blockage Pattern and Ratio)

  • 노재현
    • 한국조경학회지
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    • 제35권2호통권121호
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    • pp.55-63
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    • 2007
  • The purpose of this study is to create a planting design for progressive realization. For this, visual preferences as measured via questionnaire were evaluated by the Scenic Beauty Estimation(SBE) and paired comparison methods. The results can be summarized as follows. Through photo observation, the average visual blockage ratio was 38% and the range of degree of the visual blockage ratio was $30{\sim}50%$. The sketch simulation and filtered pattern received the highest preference score and fumed out to be the most practical pattern out of all the patterns evaluated. Also, in the sketch simulation, the high preference values were observed for a distance of 9 to 12m from the view point to the blockage tree with a D/H ratio of 2. The preference score significantly decreased with the increase of the visual blockage ratio having a turning point at $30{\sim}35%$ of the visual blockage ratio, even though the distance parameters were more important than the visual blockage ratio in the scores. An outstanding view must be handled properly to be preserved or accentuated. Framed, open, enclosed, screened or filtered pattern views should be completely revealed only from their best vantage point, not given away at first glimpse. It this sense, parallax spatial beauty with trees could be improved through the visual aspects of plan arrangements and seems to be an effective design technique for landscape planning and planting design.

지면 특징점을 이용한 영상 주행기록계에 관한 연구 (A Study on the Visual Odometer using Ground Feature Point)

  • 이윤섭;노경곤;김진걸
    • 한국정밀공학회지
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    • 제28권3호
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    • pp.330-338
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    • 2011
  • Odometry is the critical factor to estimate the location of the robot. In the mobile robot with wheels, odometry can be performed using the information from the encoder. However, the information of location in the encoder is inaccurate because of the errors caused by the wheel's alignment or slip. In general, visual odometer has been used to compensate for the kinetic errors of robot. In case of using the visual odometry under some robot system, the kinetic analysis is required for compensation of errors, which means that the conventional visual odometry cannot be easily applied to the implementation of the other type of the robot system. In this paper, the novel visual odometry, which employs only the single camera toward the ground, is proposed. The camera is mounted at the center of the bottom of the mobile robot. Feature points of the ground image are extracted by using median filter and color contrast filter. In addition, the linear and angular vectors of the mobile robot are calculated with feature points matching, and the visual odometry is performed by using these linear and angular vectors. The proposed odometry is verified through the experimental results of driving tests using the encoder and the new visual odometry.

시각 문화콘텐츠 분석에 관한 연구 -시각적 재미의 분석 방법론을 중심으로 (Analysis of Visual Culture Contents -Focusing on the Analytic Methodology for Visual Fun)

  • 박영원
    • 한국콘텐츠학회논문지
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    • 제12권6호
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    • pp.170-181
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    • 2012
  • 다양한 미디어를 통한 문화콘텐츠가 국가의 주요 성장동력산업이 되는 현대에 시각문화콘텐츠의 효과적인 생산을 위한 논리적이고 실용적인 분석 및 생산방법론을 모색하는 것은 의미가 있다. 이에 시각문화를 배경으로 문화콘텐츠 개념을 정리하고, 시각문화콘텐츠의 창작 모티브로서의 재미의 요소를 분석하였다. 그리하여 향후 경제적 가치를 창출하고 재미를 제공할 수 있는 시각문화콘텐츠 생산을 가능하게 하는 분석방법론을 고찰하여 제시하였다. 이것은 주로 기호학적 접근방법을 통한 분석방법론인데. 찰스 모리스 기호학 이론에 근거한 분석 매트릭스, 롤랑 바르트의 의미작용 이론 그리고 로만 야콥슨의 커뮤니케이션 기능 이론에 근거한 분석 매트릭스이다. 이러한 분석 매트릭스는 '재미'의 매커니즘을 다양한 층위로 연구하는데 참고자료가 되며, 시각문화콘텐츠에 재미의 요소를 논리적으로 활용할 수 있게 하는 근거가 될 수 있다.