• 제목/요약/키워드: regional image

검색결과 564건 처리시간 0.026초

쿼드트리 기반의 다중 스케일 블록 영역 검출기를 통한 구간적 영상 잡음 제거 기법 (Piecewise Image Denoising with Multi-scale Block Region Detector based on Quadtree Structure)

  • 이지현;정제창
    • 방송공학회논문지
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    • 제20권4호
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    • pp.521-532
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    • 2015
  • 본 논문은 효과적인 열화영상의 복원을 위해 쿼드트리 구조를 갖는 다중-스케일 블록 지역적 이진 패턴 기반의 영역검출기를 제시하고, 이를 통한 구간적 잡음 제거 기법을 제안한다. 구간적 잡음 제거 기법은 영상 내 전체 화소를 일정한 블록 단위의 영역으로 나누어 화소의 변화량에 따라 검출을 수행하는 다중-스케일 블록 영역 검출기를 쿼드트리 형태로 제시하고 검출된 영역 특성에 맞게 영상분석을 진행한다. 처리되는 영역들은 강한 변화량을 갖는 영역, 약한 변화량을 갖는 영역, 평탄한 영역의 세 가지로 분류되며 차례로 주성분분석, 양방향 필터, 구조-텍스쳐 영상 분해의 기법들이 잡음제거를 위해 적용된다. 객관적 실험결과를 통하여 기존 알고리즘들 보다 제안하는 구간적 잡음 제거 기법이 최대 신호-대-잡음비 측면에서 이득을 가지며, 주관적 화질 비교를 통해 세부정보들이 최대한 보존되어 있음과 동시에 평탄한 영역에 대해서도 왜곡이 거의 없는 향상된 복원영상이 얻어지는 것을 확인할 수 있었다.

동해안 관광도시 CI(City Identity)비교 연구 (Comparison of the Tourist Cities' CI in East-coast)

  • 이경숙;최지연
    • 한국콘텐츠학회논문지
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    • 제9권11호
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    • pp.443-454
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    • 2009
  • 지방자체단체들은 지역의 아이덴티티를 제고하고 지역민의 관심과 적극적인 참여유도를 위해 CIP를 도입하고 있다. 그러나 많은 지자체에서 의도한 목적을 달성하지 못하고 있다. 이에 본 연구에서는 동해안 관광도시들이 가지고 있는 각종 CI에 관한 캐릭터, 심벌, 슬로건 등을 비교하여 관광도시 이미지와의 적합성을 평가하고자 한다.

Change Detection using KOMPSAT EOC Images

  • Jeong Jae-joon;Kim Younsoo
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.518-521
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    • 2004
  • Change detection is one of the common research topics in remote sensing. In general, global change detection methods using image difference method, etc, are used in low resolution images and local change detection methods using floating windows, etc, are used in high resolution images. But, these methods have disadvantages in practical use. If changed area images are automatically produced, these images will be used in public area such as regional planning, regional development managements. In this research, we developed new change detection method applicable KOMPSAT EOC images. This method automatically produces subset images in changed area.

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충청지역 국립박물관을 중심으로 한 백제 문화상품 현황조사 (Research of Baekje Culture-Products about Chungnam Area National Museum)

  • 이상미;김정호
    • 한국가구학회지
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    • 제18권3호
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    • pp.224-233
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    • 2007
  • What is culture-products? Culture-products contains identity of nation and region. French critic Guy Sorman says "It is natural that buying culture-products when you travel any countries" Culture-products which contains our own cultural factors will give positive image of country. The research and development of grafting grudge experience culture-products was advanced the characteristic of area-culture that necessary is prerequisite. We need to develop culture-products which mixed regional culture and characteristic. We would like to research about Baekje culture and culture-products and sales products in museum. Museum is one of the tourist's attractions and great place to express regional factors. The culture-products are specially limited in the products which reflects a Baekje culture with Muryeong's tomb in Gong-ju and Baekje incense burner in Bu-Yeo it advanced. We hope that this research could help to understand market of culture-products and development.

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Efficient Object-based Image Retrieval Method using Color Features from Salient Regions

  • An, Jaehyun;Lee, Sang Hwa;Cho, Nam Ik
    • IEIE Transactions on Smart Processing and Computing
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    • 제6권4호
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    • pp.229-236
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    • 2017
  • This paper presents an efficient object-based color image-retrieval algorithm that is suitable for the classification and retrieval of images from small to mid-scale datasets, such as images in PCs, tablets, phones, and cameras. The proposed method first finds salient regions by using regional feature vectors, and also finds several dominant colors in each region. Then, each salient region is partitioned into small sub-blocks, which are assigned 1 or 0 with respect to the number of pixels corresponding to a dominant color in the sub-block. This gives a binary map for the dominant color, and this process is repeated for the predefined number of dominant colors. Finally, we have several binary maps, each of which corresponds to a dominant color in a salient region. Hence, the binary maps represent the spatial distribution of the dominant colors in the salient region, and the union (OR operation) of the maps can describe the approximate shapes of salient objects. Also proposed in this paper is a matching method that uses these binary maps and which needs very few computations, because most operations are binary. Experiments on widely used color image databases show that the proposed method performs better than state-of-the-art and previous color-based methods.

공공도서관 서비스 이미지에 관한 연구 - 대전광역시를 중심으로 - (A Study on the Service Image of Public Library: Focusing on Daejeon Metropolitan City)

  • 윤혜영
    • 한국문헌정보학회지
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    • 제48권3호
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    • pp.265-280
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    • 2014
  • 본 연구는 공공도서관의 서비스 이미지를 향상시키기 위해 공공도서관의 이용자를 대상으로 공공도서관 서비스 이미지를 조사한 연구이다. 연구방법으로 대전광역시 지역대표도서관 이용자 143명을 대상으로 설문조사를 실시하였으며, 연구결과는 다음과 같다. 첫째, 공공도서관 서비스 이미지에 대해 신뢰성과 공공성을 가장 높게 평가하였으나 서비스충족은 가장 낮게 평가하였다. 둘째, 서비스 품질의 이미지로 나타내면 큰 차이는 없으나 상대적으로 절차품질이 높고, 인적품질이 낮게 나타났다. 셋째, 공공도서관 서비스 이미지 중 긍정율이 높은 이미지는 신뢰성의 '유용한 정보제공', 공공성의 '신분에 상관없는 처리', 유형성의 '편리한 시설'이었으며, 부정율이 높은 이미지는 접근가능성의 '좋은 교통여건', 응답성의 '신속한 최신정보제공', 유형성의 '쾌적한 시설'이었다. 넷째, 이용자의 특성에 따른 공공도서관 서비스 이미지의 차이를 살펴보았을 때 10대에서 60대 이상에 이르기까지 연령이 높아질수록 평균이 낮아지고 있음을 알 수 있었다.

중국 원산지이미지에 따른 한국 소비자의 지각된 가치와 구매의도: 제조 및 브랜드 원산지 효과를 비교 (The Effects of China's Country-of-Origin Image on Korean Consumers' Perceived Value and Purchase Intentions: Comparison between Country-of-Manufacture (COM) and Country-of-Brand (COB))

  • 최명;이승신
    • Human Ecology Research
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    • 제55권5호
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    • pp.507-526
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    • 2017
  • To infer the true state of a regional product's attributes, consumers use the image they have of the product's region of origin; however, products may have multiple countries of origin in their design, branding, sourcing and manufacturing becuase more products are increasingly a result of multi-firm and multi-country efforts. We examined how the country-of-origin image (country image and product image) affect international consumers' perceived value (function value and symbolic value) and purchase intentions of made-in China goods by extending and deepening the flexible model. Second, to investigate the differences of COO effects according to different types of country-of-origin we divided the traditional country-of-origin into two components: country-of-manufacture (COM) and country-of-brand (COB). We then explore how the impact of China's country image on consumers' perceived value and purchase intentions varies when China is the COM or COB of the same product. Six hypotheses were proposed to test our anticipations. We recruited 800 Korean adult consumers who previously purchased made-in China products to participate in the online investigation. Data analyses were conducted with confirmatory factor analysis and structural equation modeling using SPSS and AMOS. The main results are discussed as follows. First, the effects of China's COO image on Korean consumers' perceived value and purchase intentions vary when China is the COM or COB of a product. Second, a positive effect of the function value and symbolic value on the purchase intentions was found. Literature and practical implications of findings are discussed and suggested in the conclusion.

비모수 방법을 사용한 영상 잡음 제거 알고리즘 (Image noise reduction algorithms using nonparametric method)

  • 우호영;김영화
    • 응용통계연구
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    • 제32권5호
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    • pp.721-740
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    • 2019
  • 영상처리 분야에서 중요한 분야인 잡음 제거는 통계적인 접근이 필요하지만 잡음에 대한 특정한 분포를 가정하기 어려우며 지역적 특징을 반영하는 공간 필터는 소표본에 해당하므로 모수적인 방법으로 접근할 수 없다. 1차 영상 미분과 2차 영상 미분은 영상에 포함된 잡음 수준에 따라 확연한 차이를 보이며 캐니 에지 검출기를 사용하면 보다 명확히 알 수 있다. 잡음 수준을 통계적으로 확인하고자 Fligner-Killeen 검정을 진행하고 붓스트랩 방법을 사용하였으며 추정된 잡음의 수준을 베타분포의 누적분포함수를 이용하여 0과 1사이의 값을 갖도록 하였다. 본 연구에서는 영상에 포함된 잡음 수준을 고려하는 잡음 제거 알고리즘을 제시하고자 한다.

만성신부전증 환자의 신체상과 자아존중감의 관계 (Relationship Between Body Image and Self-esteem in Patients with Chronic Renal Failure)

  • 손수경;이명화;송명숙
    • 기본간호학회지
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    • 제8권2호
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    • pp.160-171
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    • 2001
  • Purpose: The purpose of study was to identify the relationship between body image and self-esteem in patients with chronic renal failure. Method The subjects of study were 97 patients with chronic renal failure who were outpatients at K medical center. B hospital, H hospital in Busan. Data were collected from Nov 15th to Dec. 17th, 1999. The instruments used for study were the Body Cathexis Scale and Rogenberg's Self-esteem Scale. Collected data were analyzed by frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheffe test, and Pearson's correlation coefficients. Result: 1 The mean score for body image was $137.46{\pm}22.21$, the mean mark $2.92{\pm}0.47$, and the mean score of self-esteem was $30.80{\pm}8.76$, the mean mark $3.08{\pm}0.87$. 2. There was a significant difference in the score for body image according to educational level (F=5.189, P=.002) and type of residence (F=6.095. P=.001). 3. There was a significant difference in the score for self-esteem according to age (F=3.615, P=.009), educational level (F= 4.772, P=.004), marital status (F=3.498 P=.019) and presence of children (F=2.511, P=.014). 4. Body image in patients with chronic renal failure patients showed significant correlation with self-esteem (r=.519, P=.000). Conclusion: From this study, a relationship between body image and self-esteem in patients with chronic renal failure was identified. Therefore, nursing interventions are needed to promote body image and self esteem in patients with chronic renal patients.

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해안에 위치하는 교량경관의 시각적 특성평가 (Assessment of Visual Characteristics on Bridge Landscapes in the Seashore)

  • 천현진;강용;성옥영
    • 농촌계획
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    • 제22권3호
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    • pp.63-70
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    • 2016
  • Due to the Korea's topographic characteristic, there are a lot of marine bridges to connect between islands and mainland. In addition, marine bridges play an important role in a regional landscape. For these reasons, landscape design of bridge is necessary in order to improve beautification of region. So, this studies analyzed image and landscape preference of marine bridges in rural area. The main results were summarized as follows: When rating the image of the background in sea and mountain image, 'stable' and 'natural' were rated highly. When rating the image of the arch bridge in sea and mountain image, 'beautiful', and 'attractive' were rated highly. When rating the image of the cable-stayed bridge in sea and mountain image, 'splendid', and 'attractive' were rated highly. When rating the image of the suspension bridge in sea and mountain image, 'beautiful', and 'splendid' were rated highly. Next, When rating the image of the background in sea and building image, 'stable' and 'natural' were rated highly. When rating the image of the arch bridge in sea and building image, 'beautiful', and 'splendid' were rated highly. When rating the image of the cable-stayed bridge in sea and building image, 'beautiful', and 'attractive' were rated highly. When rating the image of the suspension bridge in sea and building image, 'beautiful', and 'attractive' were rated highly. And, The image of suspension bridges in sea and mountain image is more highly preferred than other image. The background in sea and mountain image is landscape of the lowest preference. In the mountain and sea image, the preference of suspension bridge landscape has the highest rating. In the sea and building image, the preference of arch bridge landscape has the highest rating. In conclusion, the results illustrate that the marine bridge's shape and its background in rural area are important elements of a visual preference. When designing the marine bridge, designer have to choose a proper bridge shape for its background. However, this research's limitation is that this research consider only bridge shape and background to analyze landscape preference of marine bridges. Therefore, further research is necessary to consider various elements.