• Title/Summary/Keyword: transformation method

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Extraction of Water Depth in Coastal Area Using EO-1 Hyperion Imagery (EO-1 Hyperion 영상을 이용한 연안해역의 수심 추출)

  • Seo, Dong-Ju;Kim, Jin-Soo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.12 no.4
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    • pp.716-723
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    • 2008
  • With rapid development of science and technology and recent widening of mankind's range of activities, development of coastal waters and the environment have emerged as global issues. In relation to this, to allow more extensive analyses, the use of satellite images has been on the increase. This study aims at utilizing hyperspectral satellite images in determining the depth of coastal waters more efficiently. For this purpose, a partial image of the research subject was first extracted from an EO-1 Hyperion satellite image, and atmospheric and geometric corrections were made. Minimum noise fraction (MNF) transformation was then performed to compress the bands, and the band most suitable for analyzing the characteristics of the water body was selected. Within the chosen band, the diffuse attenuation coefficient Kd was determined. By deciding the end-member of pixels with pure spectral properties and conducting mapping based on the linear spectral unmixing method, the depth of water at the coastal area in question was ultimately determined. The research findings showed the calculated depth of water differed by an average of 1.2 m from that given on the digital sea map; the errors grew larger when the water to be measured was deeper. If accuracy in atmospheric correction, end-member determination, and Kd calculation is enhanced in the future, it will likely be possible to determine water depths more economically and efficiently.

Development of the Railway Abrasion Measurement System using Camera Model and Perspective Transformation (카메라 모델과 투시 변환에 의한 레일 마모도 측정 시스템 개발)

  • Ahn, Sung-Hyuk;Kang, Dong-Eun;Moon, Hyoung-Deuk;Park, So-Yeon;Kim, Man-Cheol
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.1069-1077
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    • 2008
  • The railway abrasion measurement system have to satisfy two conditions to increase the measurement accuracy as follows. The laser region which is projected on the rail have to be extracted without the geometrical distortion. The mapping of the acquired laser region data on the rail profile have to be processed exactly. But, the conventional railway abrasion measurement system is deeply effected by the foreign substance( dust, rainwater, and so on ) on the railway or the sensitive response characteristic of the laser to the external measurement circumstance, and then the measurement errors arise from above factors. When the laser region is projected on the rail extracts from the acquired image, the interference of the light with the same frequency as the laser system occurs the serious problems. In the process of the mapping between the railway profile and the extracted laser region, the measurement accuracy is very highly effected by the geometrical distortion and the abnormal variation. In this Paper, we propose the novel method to increase the accuracy of the railway abrasion measurement dramatically. we designed and manufactured the high precision and fast image processing board with DSP Core and FPGA to measure the railway abrasion. The image processing board has the capability that the image of 1024X1280 from camera can be processed with the speed of 480 frame/sec. And, we apply the image processing algorithm base on the wavelet to extract the laser region is projected on the rail exactly. Finally, we developed high precision railway abrasion measurement system with the error range less than +/-0.5mm by which 2D image data is covered 3D data and mapped on the rail profile using the camera model and the perspective transform.

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Creative Curiosity: Study of Alice Character in Lewis Caroll's Adventures of Alice in Wonderland (창조적 호기심 루이스 캐럴의 『이상한 나라의 앨리스의 모험』 연구)

  • Cho, Sungran
    • Cross-Cultural Studies
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    • v.41
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    • pp.299-320
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    • 2015
  • Lewis Carroll's Alice's Adventures in Wonderland expands scope of Children's Literature genre by introducing the discourse of pleasure as opposed to that of didactic discipline. Carroll's narrative is important, not only for children's literature, but also as a forerunner of post/modernism of James Joyce with its language play and linguistic invention. Its treatment of Alice's body change follows the motif of body transformation in myth and literature. Comparing "stasis" of Susan Sontag's character Alice (James) in her play Alice in Bed and "movement" of Carroll's Alice, this study explores the issues of woman's alienation and the dichotomy of mobility/immobility in reality and in their literary representations. Focusing on a female child's double alienation as woman and child, I argue Alice's Adventures in Wonderland is a counter-narrative of alternative bildungsroman. Alice gains her subjectivity through her adventure by power of language and story-telling. Through representation of the dream/adventure of two desiring sisters, Carroll's narrative exhibits subversion of social order and emergence of new order of "chaosmos" out of chaos. As a method of study, this study traces genealogy of "curiosity" in myth and literature as a motivating force that triggers adventure and argues "creative curiosity" is a dynamic energy propelling Alice's adventure.

A Study on the Deformable Art Pavilion Spatial Expression Characteristics (가변형 아트 파빌리온 공간 표현특성에 관한연구)

  • Du, Bo-Yu;Hong, Kwan-Seon
    • The Journal of the Korea Contents Association
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    • v.19 no.8
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    • pp.23-34
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    • 2019
  • The space before modern times is fixed and closed, then that after modern times is flexible and open. Based on the concept of space, the modern art exhibition hall gradually shifts from the interior space of a building to the outdoor space, giving birth to the concept of outdoor art pavilion. Based on this background, we analyzed and learned about the latest deformable art pavilions, focused on the investigation of its space performance characteristics and the case analysis, fully understood the design principles of deformable pavilions, and proposed the basic design directions and strategies for future research. Firstly, through learning the theories of transformable space, the characteristics and concept range of deformable space are understood. Secondly, based on the preliminary research and analysis of art pavilions, the performance characteristics are summarized. Thirdly, the pattern of deformable space and the method of reflecting the characteristics of deformable space are investigated based on cases. After summarizing the case analysis, we identified the differences of different art pavilions between deformable modes and space characteristics, and analyzed the causes. This work provides a basis for distinguishing the transformation patterns of the deformable space, and reveals the changes in space concepts and the expansion of space meaning in future architectural space design.

Integrated Waterfront Cultural Planning through Regeneration of Former Industrial Harborfront (산업항만지역의 재생을 통한 워터프론트 문화도시 통합계획)

  • Lee, Kum-Jin
    • Journal of the Society of Disaster Information
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    • v.15 no.2
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    • pp.175-185
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    • 2019
  • Purpose: The purpose of this study is to propose a direction planning integrated waterfront cultural city in terms of urban economic revitalization through regeneration of former industrial harborfront and the creation of cultural living spaces based on regional history in order to pursue urban activities. Method: Analyzing planning waterfront and historical cultural space based on MM21's development policy and strategy under the growth process and development of Yokohama. Results: MM21 is the core public project out of the six major projects promoted by Yokohama, which is on the brink of satellite cities for the expansion of Tokyo with a goal of qualitative transformation of former harbor. It is planned to be developed as a creative cultural waterfront city for an integrated urban development. Conclusion: Planning waterfront cultural city, which takes advantage of the former harbor city derived through MM21 analysis, provides the cityscape towards the sea and the port via the viewing point and opens the waterfront open to the port and the sea Space and Esplanade landscape development, preservation of historic buildings and cultural assets, recycling as cultural art space, waterfront space planning that cooperates with public culture art and pedestrian network.

Study on the Experience of Mother-Daughter Relationship through the Process of Admission to Nursing Care Facilities (요양보호시설 입소 과정을 통해 본 모녀관계 경험연구)

  • Seo, Seung-Hui;Kim, Min-Ji
    • The Journal of the Korea Contents Association
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    • v.18 no.12
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    • pp.161-172
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    • 2018
  • The purpose of this study is to investigate the experience of the mother-daughter relationship among middle-aged women in depth through the process of admission to nursing home facilities of their dementia mother. For the purpose, 8 middle-aged women whose dementia mothers were admitted to nursing care facilities were selected as research subject, and data collection was carried out through individual interviews. As a result of this research based on the phenomenological method of Colazzi, 3 categories, 6 sub-categories, and 17 subject bundles were derived. Research results can be summarized as follows: First, the mother-daughter relationship was dramatically reversed in the process of mother's admission to the nursing care facilities. Second, in the process of dementia mother's admission to the nursing care facilities, it was confirmed that daughters rather than sons were in an independent position regarding care and management. Third, in the process of dementia mother's admission to the nursing care facilities, it turned out that the entire family experiences depression, anxiety, and feeling of loss due to a sudden change in mother-daughter relationship as well as further transformation in family relationship, suggesting that there is a need to operate education or consultation programs for the family members to help them accommodate and deal with the sudden change.

A Case Study on Parents Peer Counselor's for the Disabled Experiences in Field Counseling (장애인부모 동료상담사의 현장상담 활동경험에 관한 질적 사례연구)

  • Choi, Ha-Na;Jeong, Jong-Hwa;Kim, Eun-Jae
    • 재활복지
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    • v.22 no.2
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    • pp.127-159
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    • 2018
  • The purpose of this study is to provide the useful reference to establish the system improvement plan that activates the counseling service quality for the disabled parents peer counselors. The qualitative case study method of Yin (2009) has been used to understand and reflect to the system for the experience of field counseling of the peer counselors for the disabled parents. 10 parents peer counselors for the disabled were proportionately sampled and interviewed about their experiences through a FGI and two individual interviews. The result of the study derived from total 87 abstract concepts and 17 categories and personal motivations for participating and changes from the experience are as follows: the effects of counseling are "mutual sympathy toward the same disability," "Identity transformation from nobody to somebody who gives hope," and "another social insurance and social safety network that parents disability make." The barrier facts for the parents peer counseling activation are: "problem of securing the position of the counseling site" and difficulty in finding the client due to lack of awareness and publicity. "The study suggests four programs to upgrade the parents peer counseling: (1) To secure the position of the counseling site, (2) To reestablish the status as a professional counselor. (3) The need of pokicy supplement and support from the government, (4) The expectancy of creating jobs through the conversion of full-time workers.

Automatic Geo-referencing of Sequential Drone Images Using Linear Features and Distinct Points (선형과 특징점을 이용한 연속적인 드론영상의 자동기하보정)

  • Choi, Han Seung;Kim, Eui Myoung
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.37 no.1
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    • pp.19-28
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    • 2019
  • Images captured by drone have the advantage of quickly constructing spatial information in small areas and are applied to fields that require quick decision making. If an image registration technique that can automatically register the drone image on the ortho-image with the ground coordinate system is applied, it can be used for various analyses. In this study, a methodology for geo-referencing of a single image and sequential images using drones was proposed even if they differ in spatio-temporal resolution using linear features and distinct points. Through the method using linear features, projective transformation parameters for the initial geo-referencing between images were determined, and then finally the geo-referencing of the image was performed through the template matching for distinct points that can be extracted from the images. Experimental results showed that the accuracy of the geo-referencing was high in an area where relief displacement of the terrain was not large. On the other hand, there were some errors in the quantitative aspect of the area where the change of the terrain was large. However, it was considered that the results of geo-referencing of the sequential images could be fully utilized for the qualitative analysis.

A Study on the Career Transition for Babyboomer retires : Based on The Resilience (베이비부머 퇴직자의 진로전환에 관한 연구 : 회복탄력성을 중심으로)

  • Park, Sang-Woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.5
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    • pp.155-162
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    • 2019
  • Recent changes in corporate environment, both internal and external, have led to permanent restructuring, which has left baby boomers facing a serious threat to their jobs due to an unprepared involuntary retirement. In line with this period of time, resilience has become important in terms of overcoming the psychological hardships of retirement. In response, the study conducted a study on the effect of resilience on career path conversion among involuntary retirees of baby boomers. The effect on career conversion on the personal characteristics of baby-boomer retirees has been verified by significant differences in gender and job type. In addition, the results of verification of the effect of recovery elasticity on career path transition confirmed that recovery elasticity has a very significant effect on career path transition, and the positive effect of the positive factors among the lower factors was verified to have a very significant positive effect on situational perception, coping method and support, and it was confirmed that interpersonal ability also has an effect on positive effect. However, the ability to self-control did not have a significant effect. Thus, for baby boomers who have to prepare for career transformation after retirement, the resilience has been proven to be a very necessary ability to overcome their hardships and make successful adaptations, and it is expected that it will be very useful in the course of career transition counseling for baby boomers.

A Study on the Analysis of the Trend of installations Using 3D Printing Technique (3D프린팅 조형설치물 경향분석에 관한 연구)

  • Kim, Ji Min;Lee, Tae Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.1
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    • pp.52-60
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    • 2021
  • The aim of this study was to derive a new trend by analyzing installations using 3D printing that are out of the limits of size and design according to the trends of developing 3D printing technology. This paper classified the types of installations using 3D printing and analyzed them with two trends: the trend of design and the trend of output. The trends of installations using 3D printing derived from this study are as follows. First, as the implementation of design through an algorithm is accomplished, the transformation appears with the atypical design that is prominent in complex expression. Second, Robotics and FDM 3D Printing is fused, which is changing the existing paradigm. Therefore, the production and utilization of installations using 3D printing proceeded at a faster pace through the interaction between the algorithm design method and freeform 3D printing technology. This study was conducted on installations using 3D printing around the world and played a basic role in the research on the production of installations using 3D printing along with domestic 3D printing technology to be developed in the future. Follow-up studies in various aspects, such as materials and combination methods, will be needed.