• Title/Summary/Keyword: Image Texture

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A Study on Vehicle Target Classification Method Using Both Shape and Local Features with Segmentation Reliability (표적분할 신뢰도 값 기반의 형태특징과 지역특징을 이용한 차량표적 분류기법 연구)

  • Yang, DongWon;Lee, Yonghun;Kwak, Dongmin
    • Journal of the Korea Institute of Military Science and Technology
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    • v.20 no.1
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    • pp.40-47
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    • 2017
  • To classify the vehicle targets automatically using thermal images, there are usually two main categories of feature extraction method, local and shape feature extraction methods. Since thermal images have less texture information than color images, the shape feature extraction method is useful when the segmentation results are correct. However, if there are some errors in target segmentation, the shape feature may contain some errors, then the classification accuracy can be decreased. To overcome these problems, in this paper, we propose the segmentation reliability estimation method for target classification. The segmentation reliability can be estimated by using the difference information of average intensities and edge energies between the target and the background area. The estimated segmentation reliability is applied in the decision level fusion method of classification results using both shape and local features. Experiment results using the thermal images of the vehicle targets (main battle tank, armored personnel carrier, military truck, and an estate car) show that the proposed classification method and the segmentation reliability estimation method have a good performance in classification accuracy.

Quality Characteristics of Muffin with Saccharin (사카린을 첨가한 머핀의 품질특성)

  • Kim, Eunji;Lee, Kwang-Suck
    • Culinary science and hospitality research
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    • v.21 no.3
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    • pp.1-12
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    • 2015
  • The purpose of this study was to investigate the quality characteristics of muffins prepared with saccharin. The effect of saccharin was evaluated in terms of height, weight, volume, specific volume, baking loss rate, image analysis, color, texture, moisture contents and acceptance test. Height, weight, volume and specific volume of muffins increased with the addition of saccharin. The baking loss rate of the samples containing saccharin was lower than those of the control group. Crust thickness of muffins containing saccharin evaluated with crumbScan decreased as the content of saccharin increased. Lightness of crust decreased significantly as contents of saccharin decreased, whereas lightness of crumb increased. Control without saccharin showed the most hardness by TPA. During storage, moisture contents increased significantly as the amount of saccharin increased. According to the acceptance test, muffins with saccharin exhibited higher scores than muffins with sugar except for color of crust and flavor. In particular, Samples 1 and 2 had the highest scores. Based on the above results, the addition of saccharin would be appropriate for making muffins.

Development of Elementary School Web Based Art Appreciation System for Enhancing Analysis Appreciation (분석감상능력 신장을 위한 초등학교 웹 기반 미술감상 시스템 개발)

  • Kim, Jeong-Rang;Lim, Hyun-Jung
    • Journal of The Korean Association of Information Education
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    • v.9 no.2
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    • pp.221-228
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    • 2005
  • The art appreciation education is emphasized to develope independent thought and upright value decision in the flood of various image medium. A experience of beauty and a express part related with the sentimental field is focused on directing in the seventh arts curriculum, too. Although the art appreciation education is emphasized, just expressive and functional art texture is still taught in the education spot up to now. Also a appreciative activity is limited simply to describe own feeling intuitionally ; time shortage, difficulty of analysis product, difficulty of guiding appreciation. In this paper I refer that analyze figurative factors of a art product, modify it by applying other program, compare with it and then I develope web base art appreciation system and apply it. As a result I get educational effect. When checking line, form, light and darkness, color, feeling, space and composition of external some factors in a product, formative sense and analytical appreciation is improved.

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Depth From Defocus using Wavelet Transform (웨이블릿 변환을 이용한 Depth From Defocus)

  • Choi, Chang-Min;Choi, Tae-Sun
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.42 no.5 s.305
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    • pp.19-26
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    • 2005
  • In this paper, a new method for obtaining three-dimensional shape of an object by measuring relative blur between images using wavelet analysis has been described. Most of the previous methods use inverse filtering to determine the measure of defocus. These methods suffer from some fundamental problems like inaccuracies in finding the frequency domain representation, windowing effects, and border effects. Besides these deficiencies, a filter, such as Laplacian of Gaussian, that produces an aggregate estimate of defocus for an unknown texture, can not lead to accurate depth estimates because of the non-stationary nature of images. We propose a new depth from defocus (DFD) method using wavelet analysis that is capable of performing both the local analysis and the windowing technique with variable-sized regions for non-stationary images with complex textural properties. We show that normalized image ratio of wavelet power by Parseval's theorem is closely related to blur parameter and depth. Experimental results have been presented demonstrating that our DFD method is faster in speed and gives more precise shape estimates than previous DFD techniques for both synthetic and real scenes.

The effect of tooth brushing and thermal cycling on a luster change of ceromers finished with different methods

  • Cho, Lee-Ra;Yi, Yang-Jin
    • The Journal of Korean Academy of Prosthodontics
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    • v.38 no.3
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    • pp.336-347
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    • 2000
  • Statement of problem. Luster loss in esthetic anterior ceromer restoration can occur and can be related with rough surface texture. Understanding durability of surface finishing methods like polishing and surface coating have critical importance. Purpose. This study evaluated the effect of tooth brushing and thermal cycling on surface luster of 3 ceromer systems (Artglass, Targis, Sculpture) treated with different surface finishing methods. Material and methods. Seventy-two samples were prepared: 12 for control group Z100, 12 for Artglass, 24 for Targis, and 24 for Sculpture. Half of the Targis and Sculpture were polished according to the manufacturer's recommendation. The rest of the samples were coated with staining and glazing solution for Targis and Sculpture, respectively. All specimens were subjected to 10,000 cycles between $5^{\circ}C\;and\;55^{\circ}C$ with 30 seconds dwell time. Tooth brushing abrasion tests were performed in a customized tooth brushing machine with 500g back and forth for 20,000 cycle. Luster comparisons were based on grading after direct observation, and light reflection area was measured with Image analysis software. Results. All materials showed an decrease in luster grade after thermal cycling and tooth brushing. The post-tooth brushing results revealed that the glazed Sculpture had greater mean luster grade than did any other groups. While, the stained Targis group showed greatest changes after tooth brushing (p < 0.05), polished Targis and Sculpture did not show significant changes. However, glazed Sculpture showed discretely fallen out glaze resin. Conclusion. From the results of this study, all of the ceromer specimens were much glossy than control composite group after tooth brushing. coatings used for Targis and Sculpture had not durability for long term use.

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Study on Landslide using GIS and Remote Sensing at the Kangneung Area($\textrm{I}$) -Relationship Analysis between Landslide Location and Related Factors (GIS와 원격탐사를 이용한 강릉지역 산사태 연구($\textrm{I}$) -산사태 발생 위치와 영향 인자와의 상관관계 분석)

  • 이명진;이사로;원중선
    • Economic and Environmental Geology
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    • v.37 no.4
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    • pp.425-436
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    • 2004
  • The purpose of this study is to analyze the spatial relationship between the landslides occurred by typhoon, Rusa in 2002 and geospatial dataset. Landslide locations were detected using satellite image and field survey. Topogra-phy, soil, forest, geology and land use data sets were constructed as a spatial database in GIS. From the database, slope, aspect, curvature, water system, type of topography, texture, material, drainage, effective thickness of soil, type, age, diameter, density of wood, lithology, lineament of geology, land use and lineament were used as the land-slide occurrence factors. Using a frequence ratio model, the spatial relationships between the landslides and the factors were extracted. The spatial relationships is helpful to explain the characteristics of the landslide, and to make landslide susceptibility map.

A Study on the Current Situation of Korean Fashion Design (한국적 패션디자인의 현황 연구)

  • Shim, Soo-Hyun;Na, Yoo-Sin;Chae, Gum-Seok
    • Journal of the Korean Society of Fashion and Beauty
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    • v.5 no.1 s.12
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    • pp.14-23
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    • 2007
  • Hanbok had the history of more than 2,000 years, so Hanbok represents the traditional Korean style of dress design. Since 1980's, Hanbok has been changed to be suitable for contemporary society with diverse titles such as reformed Korean clothes, living Korean clothes, contemporary Korean clothes, and fashion Korean clothes, etc. However, Korean clothes of such a new style have not overcome a limitation in traditional styles in terms of design. In this regard, it is necessary for us to try to have the world fashion industry recognize the fashion look of 'Korean style' through the contemporary fashion of Korean image and to pursue the globalization of Korean style through this fashion. This study is firstly to review the characteristics of Korean beauty, secondly to examine the concept in Korean fashion design, and thirdly to iud out the characteristics of contemporary Korean fashion design through the study of successful cases. The characteristics of Korean beauty can be classified into natural beauty, abstract beauty, and humorous beauty. Korean beauty shows the nature and the life of Korean people, and it should make people aware of the character and the tradition of Korean culture. The Korean fashion design is the one that utilize the Korea's unique sentiment or sense of Korean beauty that has been succeeded from the ancient to the present into fashion design by way of visual element like design, color and texture. And the successful Korean fashion designs were the universal fashion designs that enable Korean culture to be hewn to the world through fashion and that enable the entire world market to agree and to accept Korean style. In order to create the global Korean design, it is necessary to assimilate the Western style to Korean style and newly create it into a compromised form. And it is necessary to look for a universal sense of Korean beauty that could be accepted by the people of the world.

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A Study on the Rule-Based Selection of Trainging Set for the Classification of Satellite Imagery (위성 영상 분류를 위한 규칙 기반 훈련 집합 선택에 관한 연구)

  • Um, Gi-Mun;Lee, Kwae-Hi
    • The Transactions of the Korea Information Processing Society
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    • v.3 no.7
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    • pp.1763-1772
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    • 1996
  • The conventional training set selection methods for the satellite image classification usually depend on the manual selection using data from the direct measurements of the ground or the ground map. However this task takes much time and cost, and some feature values vary in wide ranges even if they are in the same class. Such feature values can increase the robustness of the neural net but learning time becomes longer. In this paper,we propose anew training set selection algorithm using a rule-based method. By the technique proposed, the SPOT multispectral Imagery is classified in 3 bands, and the pixels which satisfy the rule are employed as the training sets for the neutralist classifier. The experimental results show faster initial convergence and almost the same or better classification accuracy. We also showed an improvement of the classification accuracy by using texture features and NDV1.

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The Analysis of Korean Formative-Artistic Characteristics in the HanBok Fashion (한복 패션에 나타난 한국적 디자인의 조형적 특징 분석)

  • Shin, Kyeong-Seub
    • Journal of the Korea Fashion and Costume Design Association
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    • v.12 no.3
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    • pp.121-132
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    • 2010
  • The purpose of this research was to analyze the Korean Formative-Artistic Characteristics which were expressed by Hanbok designers. In this research, Hanbok style is a combination of two main things: formative-artistic factors of the Korean past, which naturally focuses on the peculiarity of the tradition and the modern aspects of clothing. Hanbok fashion is defined as all products created by Hanbok designers that incorporate traditional design factors, but do not follow it exactly. There are four formative-artistic characteristics of Korean designs in the Hanbok fashion. The first is the practical usage of the form and the second is the application of texture, color and patterns of materials which are synonymous with traditional Korean costumes; the third, by utilizing specific features, such as a the string of Jeogori(jacket), the round line of Jeogori sleeve, quilting, slit of Dofo (coat), the line of goreum and git (collar), the beauty of the Hanbok can be expressed in various ways; finally, the decorations added to the clothing, like embroidery, dying, patchwork, and beaten silver have been used to express Korean beauty in a modern sense. At the conclusion of the research, the study suggests the following recommendations to upgrade the Hanbok designs and the Hanbok industry. The first recommendation is that continuous design research be done for the development and popularity of the brand image; secondly, collaboration with specialists from other areas of fashion would be beneficial; thirdly, it would be a positive development if Hanbok designers studied Western clothing; and fourthly, Hanbok materials should continue to evolve and be developed.

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The sensibility evaluation of Tone in Tone combination and Tone on Tone combination (톤 인 톤 배색과 톤 온 톤 배색의 감성 평가)

  • Kim, Ji-Hye
    • Science of Emotion and Sensibility
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    • v.13 no.2
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    • pp.301-308
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    • 2010
  • The sensibility effects of color combinations was studied utilizing tone on tone combination and tone in tone combination. A total of 24 color combinations were rated by 10 college students using Semantic Differential Method. The data was analyzed by using Excel statistics program 2004. Analysis method was factor analysis. Theresults of this study were as follow. Color combinations utilizing tone on tone and color combinations utilizing tone in tone was evaluated a very different impression. Thus these were found to have an influence on sensibility effects of color combinations. In comparison with appearance of color combination using colored paper and that of product to apply to color combination using colored paper, it was showed to be evaluated mostly similar impression. However By characteristic with product, shape, size and texture, appearance of color combination is likely to be evaluated very difference impression. The results of these studies will serve as a basis of color combination image or color design.

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