• 제목/요약/키워드: digital survey technique

검색결과 106건 처리시간 0.026초

최근 디지털 측량기법을 이용한 3차원 동굴측량 (3D Cave Survey Using a New Digital Survey Technique)

  • 이강원
    • 동굴
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    • 제93호
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    • pp.33-41
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    • 2009
  • 국내 동굴의 경우, 학술연구 및 관광사업을 목적으로 동굴에 대한 학술연구가 이루어지고 있으나, 동굴조사의 기초작업이라 할 수 있는 동굴내부의 정밀한 측량은 아직까지 이루어지지 못하였다. 동굴내부에 대해 정밀한 측량을 실시하고 지리정보시스템(GIS)을 구축하는 것은 동굴에 대한 체계적인 관리와 동굴의 변화과정을 추정하는데 효율적인 기초자료가 될 것이다. 이를 위해 최신의 디지털 측량기법들을 복합적으로 실시하는 3차원 동굴측량에 대해 소개하고자 한다.

Identifying Riparian Water Landscape Change Detection Using Digital Photogrammetry Technique

  • Ahn Seung-mahn;Lee Kyoo-seock
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.25-27
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    • 2004
  • Han River water landscape changes between 1966 and 2002 were detected by interpreting IKONOS images, aerial photographs. Digital photogrammetry technique was used in this process. Most of water landscape change are disappearance of sandbars and meandering streams in 1966. It is mainly due to the stream straightening for housing site development.

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아이리스 반 헤르펜의 조형 특징을 적용한 디지털 패션디자인 개발 연구 -스캠퍼 기법 활용을 중심으로- (A Study on the Development of Digital Fashion Design Applying Iris Van Herpen's Formative Features - Focusing on Using the Scamper Technique -)

  • 형여여;이영재
    • 패션비즈니스
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    • 제27권4호
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    • pp.67-87
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    • 2023
  • This study analyzed the fashion design features of Iris van Herpen and createdsixdigital fashion designsusing the SCAMPER technique with 3D clothing design software, incorporating a futuristic theme. The research methodology involvedcase analysis and a literature survey. First, the study summarizedthe design style and characteristics of Iris van Herpen. Second, a design concept wasestablished, and a design mood board wascreated. Third, the resulting design features were combined with the SCAMPER technique to incorporate Iris van Herpen's design elements intonew digital fashion designs. Fourth, after discussion with the professor and expert group, six designs were selected for production. They includededgy suit coats, overcoats, asymmetrical hoodies and asymmetrical skirts, irregularly shaped tops, dresses, leggings, jackets,and fishtail skirts. This study provides a reference for the future development of digital fashion designs and showcases the integration of science and technology in fashion design.

복잡성 분석을 통한 디지털 분석의 유효성에 관한 연구 (Study of Digital Analysis Efficiency through a Complexity Analysis)

  • 이혁준;이종석
    • 한국실내디자인학회논문집
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    • 제31호
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    • pp.56-63
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    • 2002
  • This study intends to prepare a system that can be used, by applying digital technique, in analyzing complexity of architectural forms that have been visualized by the correlation based on the distribution chart made in accordance with profile lines. The profile lines are derived from the edge analysis of the architectural forms, simplified based on the visual theory. For the purpose, this study was conducted in the following ways: First, problems of the existing models for the elevation analysis were examined along with formal analysis based on visual recognition to consider the profile lines derived from the forms. Secondly, in elevation analysis, profile lines were derived by digital method to measure them qualitatively. To verify the objectivity of the measured data value, a survey was conducted based on the adjective cataloging method, and the correlation of the survey result and analyzed data was analyzed to verify the validity of the derived data. Thirdly, supplementation for the problems deducted from experiments and the possibility to use it in designing were suggested. Digital method has many advantages over the conventional analyzing system in deriving precise data value by excluding subjectivity. It also allows various analytical methods in analyzing numerous data repeatedly. Diversified models and methods of analysis considering numerous factors arising in the process of designing remain assignments to research in future.

컨텐츠 유통 권리 침해 방지를 위한 프로토콜 (Protection protocol for the contents rights intrusion)

  • 김태우;이형우
    • 융합보안논문지
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    • 제3권1호
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    • pp.59-72
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    • 2003
  • 현재 국내 유선 인터넷 분야에서 DRM과 관련되어 국내에는 디지털 워터마킹 기술을 중심으로 컨텐츠 암호화 기술에 대한 연구가 활발히 진행되고 있다. 그러나, 현재 컨텐츠에 대한 인증 과정이 구현하는 시스템마다 모두 다르며, 전체적인 복사 방지 기술 역시 공통된 점이 부족하여 각기 다른 방식과 체계를 적용하고 있다. 본 고에서는 DOI와 INDECS, MPEG-21과 XrML, 그리고 OPIMA 기술 표준을 통하여 DRM 기술의 모델링과 체계를 살펴본다.

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Detection of Rice Disease Using Bayes' Classifier and Minimum Distance Classifier

  • Sharma, Vikas;Mir, Aftab Ahmad;Sarwr, Abid
    • Journal of Multimedia Information System
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    • 제7권1호
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    • pp.17-24
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    • 2020
  • Rice (Oryza Sativa) is an important source of food for the people of our country, even though of world also .It is also considered as the staple food of our country and we know agriculture is the main source country's economy, hence the crop of Rice plays a vital role over it. For increasing the growth and production of rice crop, ground-breaking technique for the detection of any type of disease occurring in rice can be detected and categorization of rice crop diseases has been proposed in this paper. In this research paper, we perform comparison between two classifiers namely MDC and Bayes' classifiers Survey over different digital image processing techniques has been done for the detection of disease in rice crops. The proposed technique involves the samples of 200 digital images of diseased rice leaf images of five different types of rice crop diseases. The overall accuracy that we achieved by using Bayes' Classifiers and MDC are 69.358 percent and 81.06 percent respectively.

New Digital Esthetic Rehabilitation Technique with Three-dimensional Augmented Reality: A Case Report

  • Hang-Nga, Mai;Du-Hyeong, Lee
    • Journal of Korean Dental Science
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    • 제15권2호
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    • pp.166-171
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    • 2022
  • This case report describes a dynamic digital esthetic rehabilitation procedure that integrates a new three-dimensional augmented reality (3D-AR) technique to treat a patient with multiple missing anterior teeth. The prostheses were designed using computer-aided design (CAD) software and virtually trialed using static and dynamic visualization methods. In the static method, the prostheses were visualized by integrating the CAD model with a 3D face scan of the patient. For the dynamic method, the 3D-AR application was used for real-time tracking and projection of the CAD prostheses in the patient's mouth. Results of a quick survey on patient satisfaction with the two visualization methods showed that the patient felt more satisfied with the dynamic visualization method because it allowed him to observe the prostheses directly on his face and be more proactive in the treatment process.

일반측량성과도에 의한 수치지도의 수시갱신방법 연구 (A study on the Realtime Update of the Digital-Map by the General Survey Map)

  • 이상길;권재현;전재한
    • 대한공간정보학회지
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    • 제15권3호
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    • pp.19-26
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    • 2007
  • 수치지도의 수정갱신은 사업으로 구축한 NGIS 수치지도의 활용성 향상과 최신성 유지, 확보 차원에서 추진되어 전국 5개 권역 1권역씩 5년 주기로 항공사진, 위성영상 등을 이용해 수치지도를 일괄 갱신해오다가, 3차 NGIS 시행과 더불어 갱신방안도 대도시2년, 기타지역4년 주기로 하여 일괄갱신과 부분, 수시(실시간)갱신을 병행하는 방안으로 개선되었다. 따라서 그 어느 때보다 다양한 지리정보(도면, 성과도, 지도 등)를 수치지도의 정 위치에 결합할 수 있는 매칭기법이 요구되고 있다. 본 연구에서는 중앙점 기반의 매칭 알고리즘을 개발하고 이를 활용하여 일반측량성 과도(도면)를 수치지도 수정갱신에 이용할 수 있는 방법을 제시하였다. 본 연구를 통하여 일반 측량성과도는 측량법상 일반 측량업에서 실시하는 토지의 민간 개발행위 인허가시 실측되는 도면으로 개발시점에 실측된다는 최신성과 개발의사결정에 필요한 다양한 콘텐츠(도로, 건물, 배수관, 맨홀 등)를 포함하는 활용성 만족으로 수치지도의 수시 갱신자료로 활용됨에 무리가 없음을 알 수 있었다.

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Review on Digital Image Watermarking Based on Singular Value Decomposition

  • Wang, Chengyou;Zhang, Yunpeng;Zhou, Xiao
    • Journal of Information Processing Systems
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    • 제13권6호
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    • pp.1585-1601
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    • 2017
  • With the rapid development of computer technologies, a number of image modification methods have emerged, which have great impacts on the security of image information. Therefore, it is necessary to protect the integrity and authenticity of digital images, and digital watermarking technique consequently becomes a research hotspot. An effort is made to survey and analyze advancements of image watermarking algorithms based on singular value decomposition (SVD) in recent years. In the first part, an overview of watermarking techniques is presented and then mathematical theory of SVD is given. Besides, SVD watermarking model, features, and evaluation indexes are demonstrated. Various SVD-based watermarking algorithms, as well as hybrid watermarking algorithms based on SVD and other transforms for copyright protection, tamper detection, location, and recovery are reviewed in the last part.

Entrepreneurial Performance: The Role of Literacy and Skills

  • SARIWULAN, Tuty;SUPARNO, Suparno;DISMAN, Disman;AHMAN, Eeng;SUWATNO, Suwatno
    • The Journal of Asian Finance, Economics and Business
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    • 제7권11호
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    • pp.269-280
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    • 2020
  • This research aims to determine the direct and indirect effects of digital literacy, economic literacy, and entrepreneurial skills on the performance of small- and medium-sized enterprises (SMEs) in garment clusters in the Bulak tourism industry Depok. Carrying out quantitative research with survey methods, data collection is using a questionnaire technique with 90 respondents, via saturation sampling. This research data analysis uses SPSS software version 25.0. Path analysis is used to determine the direct and indirect effects between variables. The results showed digital literacy, economic literacy, and entrepreneurial skills significantly and positively affect the performance of small- and medium-sized enterprises. The main finding in this study is that digital literacy has the greatest influence on the performance of SME entrepreneurs, both directly and indirectly. The results of the study provide input on performance development strategies for SME entrepreneurs through digital literacy, including digital business relationships, online facilities, and networks. The findings are also complementary to the factors shaping the performance of SME entrepreneurs in the digital age. The research results show that digital literacy has the greatest direct and indirect influence on the performance of SME entrepreneurs; this shows the essential contribution of digital literacy in developing business and marketing networks.