• 제목/요약/키워드: Image construct

검색결과 602건 처리시간 0.155초

영상 정합을 위한 컬러 항공사진의 밴드 특성에 관한 연구 (A Study of Band Characteristic of Color Aerial Photos for Image Matching)

  • 김진광;이호남;황철수
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2007년도 춘계학술발표회 논문집
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    • pp.187-190
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    • 2007
  • This study is for analyzing best band in image matching using correlation coefficient of left and right images of stereo image pair, lot red, green, blue band images separated from color aerial photo and gray image converted from the same color aerial photo image. The image matching is applied to construct Digital Elevation Model(DEM) or terrain data. The correlation coefficients and variation by change of pixel patch size are computed from pixel patches of which sizes are $11{\times}11{\sim}101{\times}101$. Consequently, the correlation coefficient in red band image is highest. The lowest is in blue band. Therefore, to construct terrain data using image matching, the red band image is preferable. As the size of pixel patch is growing, the correlation coefficient is increasing. But increasing rate declines from $51{\times}51$ image patch size and above. It is proved that the smaller pixel patch size than $51{\times}51$ is applied to construct terrain data using image matching.

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종합병원의 간호 서비스 이미지 포지셔닝 연구;서울시내 5개 병원을 중심으로 (A Study on Positioning of Nursing Service Image in General Hospital;Centering around 5 General Hospitals in Seoul)

  • 임지영
    • 간호행정학회지
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    • 제5권2호
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    • pp.369-388
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    • 1999
  • This study is a descriptive research to establish a positioning strategy of nursing service image, making a perception map on each hospital's nursing service image and ranking construct factors of nursing service image. The results in this study were as follows; 1. The rank of construct factors of nursing service image which were thought important by subjects was the first 'Kindness', the second 'Reliability', the third 'Professional Knowledge', the fourth 'Responsibility', and the fifth 'Advanced Nursing Skill'. 2. The perception map for nursing service image on each hospital showed a hierarchial structure and positioned the first B hospital, the second C hospital, the third D hospital, the fourth A hospital, and the fifth E hospital. The perception map for construct factors of nursing service image and hospitals showed the first dimension : 'Reliability', the second dimension : Kindness', the third dimension : 'Mission', 'Accuracy', 'Neat Appearance', and 'Ethical Aspect', and the fourth dimension : 'Client Advocate', 'Humanistic Consideration', 'Professional Knowledge', 'Responsibility', and 'Advanced Nursing Skill'. 3. The findings of subject's characteristics which affected degree of likeness on each hospital nursing service image to make a marketing strategy were as follows : In A hospital D hospital, and E hospital, the subject group whose hospital dates were under 1 week, education level was upper graduate university, and age was between 40's and 50's, were appeared to have low nursing service image on following construct factors : 'Kindness', 'Reliability', 'Responsibility', 'Mission', 'Neat Appearance', and 'Humanistic Consideration'. In B hospital and C hospital the subject group whose hospital dates were under 1 week or over 5 weeks, sex was woman, and age was 20' s or 40's, having a admission experience on subject hospitals, were appeared to have low nursing service image on following construct factors : 'Professional Knowledge', 'Advanced Nursing Skill', 'Ethical Aspect', and 'Humanistic Consideration'. As the based on above results, nursing managers can use positioning method to develope a marketing strategy for nursing service image.

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유통업자 상표 태도에 대한 소매업체 이미지의 후광 효과 및 함의 개념에 관한 연구 (The Effect of Retailer Image on Private Brand Attitude: Halo Effect and Summary Construct)

  • 박진용
    • 한국유통학회지:유통연구
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    • 제9권2호
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    • pp.101-122
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    • 2004
  • 본 연구는 소매업체 이미지와 유통업자 상표 태도에 대하여 두 가지 대안적 모형의 적합성을 실증적으로 분석하는 것을 목적으로 하고 있다. 하나는 후광 효과 모형으로 소매업체 이미지가 유통업자 상표 태도에 후광 효과를 가진다는 모형이며, 또 다른 하나는 함의 개념 모형으로 유통업자 상표 속성에 대한 평가가 소매업체 이미지에 함축되어 유통업 상표 태도에 영향을 준다는 모형이다. 실증결과는, 두 가지 모형 중 적합한 모형의 결정에는 유통업자 상표에 대한 친숙성과 상품 유형의 조절효과가 있다는 것을 보여주었다. 즉, 친숙성이 높은 경우에는 함의 개념 모형, 친숙성이 낮은 경우에는 후광 효과 모형의 설명력이 높았으며, 유통업자 상표 식품의 경우 함의 개념 모형, 유통업자 의류의 경우 후광 효과 모형의 설명력이 높은 것으로 확인되었다.

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실시간 자동 검사를 위한 라인 스캔 컴퓨터 비전 시스템의 연구 (Constructing a Automatic Real-time Line-Scan Inspection System)

  • 장동식;김용덕
    • 산업공학
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    • 제9권1호
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    • pp.73-82
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    • 1996
  • The purpose of this research is to construct real-time image acquisition system for a line-scan inspection system as a computer vision system. To construct the line-scan inspection system, many problem arise. However, problems of image acquisitions using linear CCD are practically studied in this paper. These problems are concerned to proper lighting systems, relations with handling system, camera systems, and impacts due to the noise of environment. These problems are examined separately, and proper configurations for each case are suggested to construct the line-scan image acquisition system.

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3차원 두부방사선 규격사진 구현시 컴퓨터를 이용한 두부위치의 보정방법에 관한 연구

  • 최광철;김경호;김인달
    • 대한치과의사협회지
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    • 제36권2호통권345호
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    • pp.135-143
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    • 1998
  • Cephalogram is one of the most important tool in researching growth and development of craniofacial area, orthodontic diagnosis and treatment planning. But its inherent distortion of actual length and angles during projecting three dimensional object to two dimensional plane might cause errors in quantitative analysis of shape and size. three dimensional high quality images can be obtained using computerized tomogram and have reported in literatures. Considering its expenses and amount of exposure to radiation, limitations still remain to be solved in its application to routine practice. construction of three dimensional image using principle of orientator can be obtained by biplanar stereoradiography. Theoretically two images, lateral and P-A can be used to construct three dimensional image provided that those are taken at same time by two different focal spots. As two images(lateral and P-A) obtained by conventional cephalogram have different head posture, those need compensation to construct three dimensional images. This study introduced principle of computerized head posture compensation and showed that conventional cephalogram could be used to construct three dimensional image and could be applied to routine orthodontic practice.

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Development and Validation of a Multidimensional Measure of Positive Body Image

  • Lee, Minsun;Lee, Hyun-Hwa
    • 한국의류학회지
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    • 제46권4호
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    • pp.704-722
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    • 2022
  • Current studies validate the Body Positive Scale (BP Scale) as a self-assessment instrument that captures four dimensions of the positive body image construct. We developed and evaluated a 17-item BP Scale using two focus group interviews and four independent samples (n = 1,379) of Korean women who completed online survey questionnaires. We generated an initial pool of items via literature review, content validation with experts, and focus group interviews, subsequently refining the items through exploratory analysis (Study 1). We confirmed the BP Scale's underlying dimensions with young Korean female samples (Study 2, Study 4) and with a community sample (Study 3). We also examined the construct validity, internal consistency, and test-retest reliability over a six-week interval. Overall, the results supported that the four-factor BP Scale demonstrates adequate validity and reliability in measuring positive body image among Korean women. The BP Scale provides a method for researchers and practitioners to understand and assess individuals' positive body image in a multifaceted manner.

Quantitative analysis of gene expression by fluorescence images using green fluorescence protein

  • Park, Yong-Doo;Kim, Jong-Won;Suh, You-Hun;Min, Byoung-Goo
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 추계학술대회
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    • pp.475-477
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    • 1997
  • We have analyzed the fluorescence image obtaining from green fluorescence protein (GFP). In order to monitor the fluorescence of specific gene, we used the amyloid precursor protein promoter which has been known to act as a major role in the development of Alzheimer's disease. The promoter from - 3.0 kb to + 100 base pair was inserted into the gene expression monitoring GFP vector purchased from Clontech. This construct was transfected into the PC 12 and fibroblast cells and the fluorescence image was captured by two kinds of methods. One is using cheaper CCD camera and other is SIT-CCD camera. or the higher sensitivity of the fluorescence image, we developed the multiple image grabbing program. As a results, the fluorescence image by conventional CCD camera have the similar sensitivity compared with that of the SIT-camera by applying the multiple image grabbing programs. By this system. it will be possible to construct the fluorescence monitoring system with lower cost. And gene expression in real time by fluorescence image will be possible without changing the fluorescence images.

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보간 검색을 이용한 Panning 비디오 영상에서의 모자이크 기법 (Mosaic Technique on Panning Video Images using Interpolation Search)

  • 장성갑;김재신
    • 대한전자공학회논문지SP
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    • 제42권5호
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    • pp.63-72
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    • 2005
  • 본 논문에서 삼각대 위에 고정시킨 카메라를 회전시켜 취득한 비디오 시퀀스로부터 파노라마 영상을 구성하는 새로운 방법을 제안한다. 제안한 방법은 비디오 시퀀스 중에서 실제로 사용할 프레임을 자동으로 선택하는 단계와 파노라마 영상을 구성하는 모자이킹 단계로 나누어진다. 파노라마 영상을 구성하는데 필요한 프레임은 연속된 프레임 간의 중첩 비율 정보를 이용한 보간 검색을 통해 선택된다 이 방법은 카메라의 속도에 상관없이 적절한 프레임을 고속으로 검색할 수 있다. 모자이킹 단계에서는 4쌍의 특징점을 사용하는 사영 변환식(projective transform)을 이용한다. 기존의 연구에서는 특징점을 화소 기반의 정보만을 이용하여 추출하였지만, 본 논문에서 제안한 방법은 특징점의 위치까지 고려하여 사영 변환식의 정확도를 높였다. 제안한 방법은 다양한 영상 시퀀스에 적용하여 실험하였고, 그 결과 모든 영상에 대해서 좋은 화질의 파노라마 영상을 생성하였다.

웨이블릿 계수의 혼합 모델링을 이용한 영상 잡음 제거 (Image Denoising via Mixture Modeling of Wavelet Coefficients)

  • 엄일규;우동헌;김유신
    • 한국통신학회논문지
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    • 제28권8C호
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    • pp.788-794
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    • 2003
  • 영상 잡음의 제거를 위해서는 영상에 대한 통계적 모델을 설정하고, 잡음이 섞인 영상에서 원 영상의 분산을 정확하게 추정하는 것이 매우 중요하다. 추정된 원 영상의 분산을 이용하여 잡음 영상에 Wiener 필터를 적용함으로써 영상의 잡음을 제거하는 것이 일반적이다. 본 논문에서는 영상의 잡음을 제거하기 위해 웨이블릿 계수의 새로운 통계적 혼합 모델링을 제안한다. 먼저 웨이블릿 계수의 중요한 특성을 획득할 수 있는 중요도(重要圖)를 작성하기 위해 간단한 분류 방법을 사용한다. 분류된 중요도에 혼합 모델의 상태 확률을 계산하고, 이를 이용하여 신호의 분산을 추정한다. 실험 결과를 통하여 제안 방법이 기존의 방법보다 0.1-0.2㏈ 정도 높은 PSNR을 보여준다는 것을 알 수 있다.

Does Brand Love Precede Brand Loyalty? Empirical Evidence from Saudi Airline Customers in Strategic Alliance Setting

  • SOOMRO, Yasir Ali;BHUTTO, Muhammad Yaseen;ERTZ, Myriam;SHAIKH, Ahsan-ul-Haq;BAESHEN, Yasser;Al BATATI, Bader
    • The Journal of Asian Finance, Economics and Business
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    • 제9권6호
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    • pp.81-93
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    • 2022
  • This research aims to construct a model that combines brand love, brand loyalty, brand image, customer satisfaction, and service quality into a single model, with brand loyalty coming foremost, and test its predictive power in building brand love. Moreover, mediating effect of customer satisfaction and brand image on service quality and brand loyalty affecting brand love was checked. The study adopted an alliance context using an existing SERVQUAL model, a bi-dimensional aspect of brand loyalty and parasocial love relationship theory, to identify brand love as a construct or outcome in the consumer-brand relationship. Using a quantitative approach, survey questionnaires were distributed by unrestricted random sampling among 507 Saudia Airlines customers. Data were analyzed using structural equation modeling with SmartPLS 3.0. The results revealed significant relationships between four variables except for the brand image. It was found that brand image had no mediating effect on the relationship between service quality and customer loyalty. The outcome of this study highlights the importance of airline alliances for service quality, which leads to positive customer satisfaction, brand image, and customer loyalty. A unique contribution of the study is that it revealed that brand loyalty is also an antecedent of brand love.