• Title/Summary/Keyword: photographic information

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Earthwork Volume Calculation of Anchorage Underground Capacity Using Laser Scanner (레이저스캐너를 이용한 앵커리지 지하공동의 토공량 산정)

  • Choi, Seok-Keun;Kim, Dong-Yeun
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.3
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    • pp.21-27
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    • 2010
  • When the capacity of underground caverns' structures is measured, a general surveying is difficult to decide an accurate section of irregular shape and a photographic surveying has problems on picture acquisition due to underground dusts, noise and lighting conditions, etc. The laser scanner system is being much used for 3-dimensional modeling such as topography, planimetric features and structures, etc. without a target by measuring arriving time of a laser pulse reflected after scanning the laser pulse and calculating space coordinates of the reflection position. Accordingly, the present research carried out section and earthwork volume measurement of a tunnel by using a laser scanner in underground anchorage excavation work that a bridge construction is being executed.

Supporting The Tunnel Using Digital Photographic Mapping And Engineering Rock Classification (디지털 사진매핑에 의한 공학적 암반분류와 터널의 보강)

  • Kim, Chee-Hwan
    • Tunnel and Underground Space
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    • v.21 no.6
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    • pp.439-449
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    • 2011
  • The characteristics of rock fractures for engineering rock classification are investigated by analyzing three dimensional point cloud generated from adjusted digital images of a tunnel face during construction and the tunnel is reinforced based on the supporting pattern suggested by the RMR and the Q system using parameters extracted from those images. As results, it is possible saving time required from face mapping to tunnel reinforcing work, enhancing safety during face mapping work in tunnels and reliability of both the mapping information and selecting supporting pattern by storing the files of digital images and related information which can be checked again, if necessary sometime in the future.

Development of Web-based Process Management System for Spatial Data Construction (웹기반의 공간데이터 구축공정 관리시스템 개발)

  • Choi, Byoung-Gil;Kim, Sung-Soo;Cho, Kwang-Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.14 no.3 s.37
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    • pp.63-70
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    • 2006
  • This study aims to development of web-based process management system for spatial data construction. For developing this system work classification of basic surveying was standardized and quality management method for spatial data was established. Production process and work classification system for basic surveying such as control point surveying using GPS, leveling, aerial photographing, digital mapping, topographic mapping, digital elevation modeling, aerial photographic DB construction and digital orthophotomap was standardized. The status of the output and quality inspection for basic surveying project were analyzed, and the elements of quality inspection and data format for the type of outputs were analyzed. Based on standardized and analyzed contents, web-based process management system was developed after database and process was designed. The process management system consisted of process management, quality control, metadata management, and system management.

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Multi-Culture in Men's Fashion (남성 패션에 표현된 다중 문화)

  • 이민선
    • Journal of the Korean Society of Costume
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    • v.51 no.7
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    • pp.21-33
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    • 2001
  • The purpose of this study is to Investigate the value of multi-culture and to examine how multi-culture has been reflected in men's fashion. As for the research methodology, literary research was under taken to study psychoanalytical and socioeconomic contexts in which multi-culture in men's fashion has been formed. In addition, demonstrative studies on styles were undertaken through the analysis of pictures and photos. The historical range of this study is from the 19th century when western and modern original form of men's dress were visualized, to the year 2001 when the elements of multi-culture are expressed in men's fashion. Westerners in 19th century respected Greek fine arts and the desire for realistic restoration of the body of Greek hero is well reflected in men's suits. Other races were forced to believe such realistic depiction of the Greek body as a symbol of modernization. With the advent of the Information Society In the late 20th century, absolute power had been decentralized, and people in the third world have revealed the racial contradictions by realizing the concept of splitted subject existing In unconscious. In the post-colonial world in the late 20th century, the value of diverse cultures is admitted. Models come from various races in fine art or photographic work Fashion trends are no longer limited to dominant mode, and designers express multi-culture by adopting and renewing folk elements from all over the world.

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An Image Quality Evaluation Model for Optical Strip Signal-to-Noise Ratio in the Target Area of High Temperature Forgings

  • Ma, Hongtao;Zhao, Yuyang;Feng, Yiran;Lee, Eung-Joo;Tao, Xueheng
    • Journal of Multimedia Information System
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    • v.8 no.2
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    • pp.93-100
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    • 2021
  • Under the time-varying temperature, the high-temperature radiation of forgings and the change of reflection characteristics of oxide skin on the surface of forgings lead to the difficulty of obtaining images to truly reflect the geometric characteristics of forgings. It is urgent to study the clear and reliable acquisition method of hot forging feature image under time-varying temperature to meet the requirements of visual measurement of hot geometric parameters of forgings. Based on this, this chapter first puts forward the quality evaluation method of forging feature image, which provides guarantee for the accurate evaluation of feature image quality. Furthermore, the factors that affect the image quality, such as the radiation characteristics of forgings and the photographic characteristics of cameras, are analyzed, and the imaging spectrum which can effectively suppress the radiation intensity of forgings is determined. Finally, aiming at the problem that the quality of image acquisition is difficult to guarantee due to the drastic change of radiation intensity of forgings under time-varying temperature, an image acquisition method based on minimum signal-to-noise ratio (SNR) based laser light intensity adaptation is proposed, which significantly improves the definition of feature light strips in forging images at high temperature, and finally realizes the clear acquisition of feature images of large-scale hot forging under time-varying temperature.

Taxonomy and distribution of two small negligible diatoms of Plagiogrammopsis minima and Diploneis aestuarii from Northeast Asian tidal flats

  • Kim, Bongho;Khim, Jong Seong;Park, Jinsoon
    • Journal of Species Research
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    • v.10 no.3
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    • pp.237-245
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    • 2021
  • Tidal flats are well developed in and around the Yellow Sea of Northeast Asia, and benthic diatoms are the most important primary producers in corresponding habitats. In the present study, the taxonomy and distribution of small negligible diatom species from Northeast Asian tidal flats are investigated for better understanding of the diversity of Korean marine benthic diatoms. The presence of Plagiogrammopsis minima and Diploneis aestuarii, which may have been ignored and/or misidentified due to their small size, were identified by both means of light microscopy (LM) and scanning electron microscopy (SEM). Plagiogrammopsis minima has never been reported from Korea before the present study, while Diploneis aestuarii was only once mentioned without any photographic information. Accordingly, we provide the morphological characteristics of the two species in detail with LM and SEM observation. Information on the regional distribution of the two species is also provided. Results of the present study contribute to the better understanding of the biodiversity of the Korean marine benthic diatoms.

Unleashing the Power of Digitization: National Mission for Manuscript's Analysis and Special Efforts in Enhancing Manuscript Usability and Preserving Cultural Heritage in Uttar Pradesh

  • Priyanka Jaiswal;Abhay Chaurasia;Ajay Pratap Singh
    • International Journal of Knowledge Content Development & Technology
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    • v.14 no.3
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    • pp. 7-18
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    • 2024
  • The present study focuses on the activities and efforts of the National Mission for Manuscripts (NMM) in the Uttar Pradesh region, which is known for its vast area, population, and rich cultural heritage. The aim is to examine the digitization work carried out by the NMM in this area, as digitization plays a crucial role in preserving our country's rich ancient heritage. The importance of safeguarding cultural heritage is universally acknowledged, and digitization serves as a vital tool in this endeavour. Through digitization, we can protect and preserve our heritage for future generations. The government has implemented several commendable initiatives for manuscript digitization, and the NMM stands as a prominent organization dedicated to the conservation of cultural heritage. The NMM possesses a diverse range of cultural heritage resources, including photographic slides, photographs, digital images, photo-negatives, motion pictures, audio spools, microfiche, LP records, endangered manuscripts, audio and videotapes, digital images, microfilms, digital audio and video files, and more. The mission has undertaken extensive digitization efforts to conserve and provide access to a significant portion of its collection. This study is unique as it explores the digital conservation and digitization practices of a premier institute working in the field of art and cultural heritage in Uttar Pradesh. With its extensive network of institutions, the mission aims to cover all manuscripts, digitize them, and consolidate them on a common platform for easy access and utilization.

Development of Horizontal Alignment Information System of Road Using Digital Photogrammetry (수치사진측량을 이용한 도로평면선형정보체계 개발)

  • 서동주;이종출
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.21 no.4
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    • pp.347-353
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    • 2003
  • Lately, Digital Photogrammetry has been increasingly applied to various hightech industries and becomes one of more interesting focuses of study than ever. Thus, this study aims to develop a Road Horizontal Alignment Information System by means of digital photogrammetry. Data acquired from digital photographic techniques were processed using Delphi, an object oriented programming language to develop a computer aided program, that allows us to build the information on Road Horizontal Alignment(Beginning Point of Curve, Ending Point of Curve, Radius, Intersection Point). The developed program could maximize visualization for better analysis compared with traditional programs because it utilizes many image data. Comparing with data from traditional horizontal alignment extraction programs based on the principle of least square method, the data acquired by Horizontal Alignment Information and kinematic GPS showed out of the developed road information systems the improved accuracy of IP value up to about 2m in the direction of X, Y axes, where the accuracy of curve radius(R) becomes enhanced up to about 2.5 m.

The Development of the Model of Information Structure for Photo Archives in University Archives (대학기록관 사진 아카이브를 위한 정보구조 모형 제안)

  • Hyewon Lee;Seunghee Han
    • Journal of Korean Society of Archives and Records Management
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    • v.23 no.1
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    • pp.101-126
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    • 2023
  • Photographic archives of universities are one of the most valuable types of records that establish the university's identity and provide historical evidence. Unlike text records, however, they are weak in conveying meanings. Therefore, it is difficult to support users' search and utilization unless the information of photo records is comprehensively described. In this study, for the university photo archives, we tried to structure the classification system of photo archives and develop a metadata set that reflects the category characteristics in the classification. To this end, the photo archives classification system and metadata elements of domestic and American university archives were analyzed and based on this, the model of information structure was proposed. The information structure model presented in this study can help university archives improve the data quality of their photo archives and support users with the abundant discovery of photo archives.

An empirical study on the relationship of speed change and injuries subjected by rear-end collisions (후미추돌사고의 속도변화와 승차자 상해에 관한 실증적 분석)

  • Kang, Sung-Mo;Kim, Joo-Hwan
    • Journal of the Korean Data and Information Science Society
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    • v.20 no.5
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    • pp.797-807
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    • 2009
  • In a case of an automobile rear-end collision, scale of the collision which are the extent of vehicle damage and the injury of the passenger is affected by the speed change. Based on the photographic interpretation of the actual accident cases in the Seoul and the Incheon area, this study measured the depth of crush and calculated the speed change from the statement data of the accident and speed, and also injury data such as diagnosis, hospitalization days are collected. The period of hospitalization and diagnostics claimed proves to have no statistical correlation with the depth of vehicle crush and speed change. Based on the statistical analysis from this study and previous foreign studies, we found that there have been 78.1% of personal accidents didn't reach the injury threshold. There should be objective information on the scale of accident accepting the claims-to-be-injured in the future, and application of injury threshold level suggested are considered to be very useful.

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