• Title/Summary/Keyword: Image-development

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CCSDS 122.0-B-1 : An Image Compression Technology for High Resolution Satellites (CCSDS 122.0-B-1 : 고해상도위성의 영상압축 기술)

  • Seo, Seok-Bae;Koo, In-Hoi
    • Current Industrial and Technological Trends in Aerospace
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    • v.6 no.2
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    • pp.90-98
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    • 2008
  • In recent, image data compression method of high resolution satellite image is the important issue for its application and development. The CCSDS (Consultative Committee for Space Data Systems) published a standard for the high resolution image data compression, CCSDS 122.0-B-1, in the end of 2005, which is expected to be widely applied in process of compression for the high resolution satellite images. In this paper, it is explained that the current trends of image compression methods for high resolution satellites, and then the comparison results between CCSDS 122.0-B-1 standard and JPEG are described.

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Analysis of Velocity Potential around Pulsating Bubble near Free or Rigid Surfaces Based on Image Method (이미지 방법을 이용한 자유 및 강체 표면 옆의 맥동하는 버블 주위 속도 포텐셜 해석)

  • Lee, Sangryun;Choi, Gulgi;Kim, Jongchul;Ryu, Seunghwa
    • Journal of Ocean Engineering and Technology
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    • v.32 no.1
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    • pp.28-35
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    • 2018
  • An analytical method for predicting the velocity potential around a pulsating bubble close to a free or rigid wall was established using an image method. Because the velocity potential should satisfy two boundary conditions at the bubble surface and rigid wall, we investigated the velocity in the normal direction at the two boundaries by adding the image bubbles. The potential was analyzed by decomposing the bubble motion as two independent motions, pulsation and translation, and we found that when the number of image bubbles was greater than ten, the two boundary conditions were satisfied for the translation term. By adding many image bubbles after the approximation of the pulsation term, we also confirmed that the boundary condition at the wall was satisfied.

The relationships among Body Image, Depression and Sexual function in Postmenopausal Women (폐경 후기 중년여성의 신체상, 우울 및 성기능과의 관계)

  • Kim, Jung-Hee;Bae, Kyung-Eui;Moon, Hyun-Sook;Kang, Hyun-Im
    • Korean Journal of Adult Nursing
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    • v.17 no.2
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    • pp.239-247
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    • 2005
  • Purpose: The purpose of this study is to examine the relationship among body image, depression and sexual function in Korean postmenopausal women. Methods: Subjects were 96 postmenopausal women who have lived in Korea. Data was collected using Semantic Differential scale, CES-D, and FSFI. Results: The level of body image was positive, depression was mild, and sexual function was moderate. There were no significant correlation between depression and sexual function. The subjects who had more positive body image experienced higher sexual function and less depressed mood. Conclusion: These findings showed the need for a knowledge development program for nurses regarding women's sexual function. Also, nurses must do counseling with sexual partner's and consider patients' body image when counseling those who complain of sexual dysfunction.

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A Study on the Digital Image Creating through Emotional Dimension (감성차원을 통한 디지털 이미지 크리에이팅)

  • Park Sang-Jin
    • Proceedings of the Korea Contents Association Conference
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    • 2005.11a
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    • pp.475-479
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    • 2005
  • Such changes that the digital paradigm brought propels a change of the value system itself in the existing society so that a way of thinking that differentiates oneself from others is getting much stronger. As public interests are higher in the image production on the internet, such authoring environments as development of related technologies, expansibility of information, and systematization of available information continue to change. Therefore, a variety of unique image presentations that fit to the changed environments are necessary and an expression method is indispensable for such image production. It suggests digital image application methods and examples that contain not just simple image distortion or variation but intrinsic significance. It is believed that it will be of good use to produce a variety of unique and innate digital images in the end.

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Study on the Effects of the Supportive Nursing Intervention Program for Body Image and Self Esteem of the Child with Cancer (지지간호중재가 암환아의 신체상 및 자존감에 미치는 영향)

  • 오상은
    • Journal of Korean Academy of Nursing
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    • v.29 no.3
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    • pp.679-687
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    • 1999
  • The increased potential for the lifespan of a child with cancer is largely due to advances in drug treatment, radiation treatment, and surgical techniques. In this generation cancer has become associated with chronic illness. Therefore supportive nursing intervention for children with cancer is needed to promote normal growth and development. This study was designed to develop and test the supportive nursing intervention program for promoting body image and self-esteem of children with cancer The supportive nursing intervention program involved emotional, physical, informational, and social support. The subjects were 41 children with cancer(20 in intervention group, 21 in control group) in K city. Measurements were taken concerning body image and self-esteem from both groups during pre and post test The data were analyzed using Cronbach's alpha, x$^2$-test, paired t-test and t-test. The results were as follows : The intervention group had a more positive body image as measured by the Body Cathexis Scale (t=2.436, p=.020) and a more self esteem as measured by the Cpopersmith self-inventory (t=2.768, p=.009) than the control group at post test. According to this study, the supportive nursing intervention program was effective for promoting the body image and self-esteem of children with cancer. Repeated research is needed to develop a refined supportive nursing intervention program for children with chronic illness.

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Automated Visual Inspection System of PCB using CAD Information (CAD 정보를 잉용한 PCB 자동 시각 검사 시스템)

  • Park, Byung-Joon;Hahn, Kwang-Soo
    • Journal of Korea Multimedia Society
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    • v.12 no.3
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    • pp.397-408
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    • 2009
  • Image training is a very important yet difficult state for automated visual inspection using computers. Because the size of parts for the recently produced PCB (Printed Circuit Board) becomes smaller and circuit patterns gradually become more complex, a difficult and complex training process is becoming a big problem within an industry where development cycle for new products is short and various products must be inspected. This research produced a reference image by using CAD (Gerber) file which becomes a standard for PCB automatic visual inspection. Reference image from a Gerber file guarantees PCB patterns with no defects. Through system implementation and experimentation, Gerber file is used in order to propose a plan which allows an easy training process for PCB automatic visual inspection system.

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Development of a Fruit Grader using Black/White Image Processing System(I) - Determining the Size and Coloration - (흑백영상처리장치를 이용한 과실선별기 개발에 관한 연구(I) - 크기 및 색택 판정 -)

  • Noh, S.H.;Lee, J.W.;Lee, S.H.
    • Journal of Biosystems Engineering
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    • v.17 no.4
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    • pp.354-362
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    • 1992
  • This study was intended to examine feasibility of sizing and color grading of Fuji apple with black/white image processing system, to develop a device with which the whole surface of an apple could be captured by one camera, and to develop an algorithm for a high speed sorting. The results are summarized as follows : 1. The black/white image processing system used in this study showed a maximum error of 1.3% in area measurement with a reference figure while the focusing point of camera and location of the reference figure were changed within a certain range. 2. As the result of evaluating four automatic image segmentation algorithms with apple images, Histogram Clustering Method was the best in terms of computation time and accuracy. 3. The fast algorithm for analyzing size and coloration of apple was developed. 4. The whole surface of an apple could be captured in an image frame with two mirrors installed on the both sides of the sample. The total area of the image representing the whole surface showed a correlation of 0.995 with the weight of apple. 5. The gray level when a particular band pass filter was mounted on the camera showed high correlation with 'L' and 'a' values of Hunt color scale and could represent the coloration of apple.

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The study on the Image Evaluation of a Preserved Tree as Growth Environment - Focused on the Zelkova serrata in Yesangun - (생육환경에 따른 보호수 이미지 평가 - 예산군 느티나무를 중심으로 -)

  • Son, Jin-Kwan;Shin, Ji-Hoon;Ann, Phil-Gyun;Kang, Bang-Hun
    • Journal of Korean Society of Rural Planning
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    • v.17 no.2
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    • pp.33-41
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    • 2011
  • To evaluate the value of a preserved tree as rural landscape resource, the growth environment and health condition was investigated, and the image evaluation was implemented on land~ape architectural major undergraduate students for zelkova trees in Yesan-gun. The image evaluation results of zelkova trees were as followings; 1) Typical image of preserved tree examined by Semantic Differential Scale were 'Old', 'Big', and 'Good'. 2) The 'big' image of zelkova tree and the height of tree, the width of tree crown, the breast girth of tree, the root girth of tree, the external formation of tree, and the health of tree bark is mutually related. Especially, the correlation between the 'big' and the external formation and the width of tree crown is high. 3) Typical image of preserved tree examined by Likert Scale were 'Natural', 'Green', 'Peaceful', and 'Rural'. 4) The preservation necessity for preserved tree was highly related with the state of ground, and the management necessity for preserved tree was highly related with contamination level and the state of ground. The appropriate management plan for preserved tree are proposed to improve the quality of rural landscape(basis of these results).

The development of automatic optical aligner with using the image processing (Image Processing을 이용한 자동 광 정렬 장치 개발)

  • Um, Chul;Kim, Byung-Hee;Kim, Sung-Geun;Choi, Young-Seok
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.10a
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    • pp.536-539
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    • 2002
  • In this paper, we developed the automatic optical fiber aligner by image processing and automatic loading system. Optical fiber is indispensable for optical communication systems that transmit large volumes of data at high speed, but super-precision technology in sub-micron units is required for optical axis adjustment, we have developed 6-axis micro stage system for I/O optical fiber arrays, the initial automatic aligning system/software for a input optical array by the image processing technique, fast I/O-synchronous aligning strategy, the automatic loading/unloading system and the automatic UV bonding mechanism. In order to adjust the alignment it used on PC based motion controller, a $10\mu\textrm{mm}$ repeat-detailed drawing of automatic loading system is developed by a primary line up for high detailed drawing. Also, at this researches used the image processing system and algorithm instead of the existing a primary hand-line up. and fiber input array and waveguide chip formed in line by automatic. Therefore, the developed and manufactured optical aligning system in this research fulfills the great role of support industry for major electronics manufacturers, telecommunications companies, universities, government agencies and other research institutions.

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Using Image Analysis Technique to Test Grain Hardness in Wheat (주상분석법을 이용한 밀의 경.연질성 구분)

  • 박동수;고종민;서득용;김경민;손재근
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.5
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    • pp.571-578
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    • 1997
  • The development of new approaches for wheat grain hardness assessment may impact the grain industry in marketing, milling and breeding. This experiment was to develop a new method for fast identification between softness and hardness, and for maintaining germinability of seed after measurement in wheat. Results from the comparisons of accuracy and significance between image analysis and conventional methods(NIRS and textrometer) were summarized. Data obatined from image analysis for grain hardness did not show any difference from those of the conventional methods. The protein content analyzed by micro-Kjeldahl method was significantly correlated with the grain hardness measured by image analysis, textrometer, and NIRS. The analysis for wheat grain hardness using image analysis may be used as an alternative method to the conventional methods. This method also takes the seeds after analysis can be utilized as breeding materials in early generations.

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