• 제목/요약/키워드: remote

검색결과 11,818건 처리시간 0.037초

The Application of Digital Watermarking in Remote Sensing Image

  • Jin, Peidong;Qin, Xuwen
    • 대한원격탐사학회:학술대회논문집
    • /
    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
    • /
    • pp.1264-1267
    • /
    • 2003
  • To protect the digital image, video and audio from non-authorized use, the digital watermarking technology has received a great attention in the field of multimedia in recent years . An overview of the development of watermark techniques is given in the current paper followed by a discussion of potential application of spatial domain, transform domain watermark techniques in remote sensing images copyright protection and verification in different forms of processed images.

  • PDF

원격탐사 기법에 의한 서울, 대전, 인천지역 토지이용 분류연구 (A Study on the Land Use Classification of Seoul, Tajeon, Incheon Areas by Remote Sensing Technique)

  • 연상호
    • 대한원격탐사학회지
    • /
    • 제2권2호
    • /
    • pp.69-77
    • /
    • 1986
  • This study was emphasized on the land use classification by Remote Sensing Technique. Land cover maps about the major urbans, Seoul, Tajeon regions, its of each classified classes were extracted by use of Landsat MSS Data and Digital Image Processing System. From the results of this study, it was proved that land use classification by Remote Sensing technique could be used to obtain fully fruitful Results.

한국의 원격탐사 활용 (Remote Sensing Applications in Korea)

  • 정형섭;박상은;김진수;박노욱;홍상훈
    • 대한원격탐사학회지
    • /
    • 제35권6_3호
    • /
    • pp.1161-1171
    • /
    • 2019
  • 최근 원격탐사 활용이 더욱 늘어남에 따라 연구주제를 모아 게재하는 특별호가 진행되었다. 이번 특별호에서는 2017년 국립농업과학원, 한국환경정책평가연구원, 환경부 및 한국항공우주연구원에서 진행한 연구주제와 2018년 한국해양과학기술원, 극지연구소, 한국항공우주연구원, 기상청에서 진행한 연구주제를 검토하고, 한국에서의 원격탐사 활용에 관한 연구들을 소개하고자 한다.

구름물리 관측시스템 및 산출물 검정 (Cloud Physics Observation System (CPOS) and Validation of Its Products)

  • 장기호;오성남;정기덕;양하영;이명주;정진임;조요한;김효경;박균명;염성수;차주완
    • 대기
    • /
    • 제17권1호
    • /
    • pp.101-108
    • /
    • 2007
  • To observe and analyze the cloud and fog characteristics, the METeorological Research Institute (METRI) has established the Cloud Physics Observation System (CPOS) by implementing the cloud observation instruments: Forward Scattering Spectrometer Probe (FSSP), PARticle SIze and VELocity (PARSIVEL), Microwave Radiometer (MWR), Micro Rain Radar (MRR), and 3D-AWS at the Daegwallyeong Enhanced Mountain Weather Observation Center. The cloud-related products of CPOS and the validation status for the size distribution of FSSP, the precipitable water of MWR, and the rainfall rate of MRR and PARSIVEL are described.

Enhanced remote-sensing scale for wind damage assessment

  • Luo, Jianjun;Liang, Daan;Kafali, Cagdas;Li, Ruilong;Brown, Tanya M.
    • Wind and Structures
    • /
    • 제19권3호
    • /
    • pp.321-337
    • /
    • 2014
  • This study has developed an Enhanced Remote-Sensing (ERS) scale to improve the accuracy and efficiency of using remote-sensing images of residential building to predict their damage conditions. The new scale, by incorporating multiple damage states observable on remote-sensing imagery, substantially reduces measurement errors and increases the amount of information retained. A ground damage survey was conducted six days after the Joplin EF 5 tornado in 2011. A total of 1,400 one- and two-family residences (FR12) were selected and their damage states were evaluated based on Degree of Damage (DOD) in the Enhanced Fujita (EF) scale. A subsequent remote-sensing survey was performed to rate damages with the ERS scale using high-resolution aerial imagery. Results from Ordinary Least Square regression indicate that ERS-derived damage states could reliably predict the ground level damage with 94% of variance in DOD explained by ERS. The superior performance is mainly because ERS extracts more information. The regression model developed can be used for future rapid assessment of tornado damages. In addition, this study provides strong empirical evidence for the effectiveness of the ERS scale and remote-sensing technology for assessment of damages from tornadoes and other wind events.

산업용 유도전동기의 원격제어를 위한 분산 Embedded 시스템에 관한 연구 (Design of a Distributed Embedded System for Remote Multi-Induction Motor Control of Industrial Fields)

  • 홍원표;이승학
    • 조명전기설비학회논문지
    • /
    • 제21권1호
    • /
    • pp.82-90
    • /
    • 2007
  • 이 논문은 유도전동기 원격제어를 위한 분산 임베디드시스템에 관한 연구로 제어시스템은 CAN통신을 기반으로 하는 네트워크를 구성하였으며 원격제어를 위하여 Ethernet TCP/IP-CAN 게이트웨이를 개발하였다. 이를 통하여 유도전동기 2대의 구동시스템을 제작하여 원격제어실험을 수행하였으며 실험 결과 개발된 알고리즘 및 TCP/IP-CAN 게이트웨이가 매우 우수한 성능을 가지고 있음을 확인하였다.