• Title/Summary/Keyword: Korean Journal of Remote Sensing

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Occlusion Restoration of Synthetic Stereomate for Remote Sensing Imagery

  • Kim, Hye-Jin;Choi, Jae-Wan;Chang, Ho-Wook;Ryu, Ki-Yun
    • Korean Journal of Remote Sensing
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    • v.23 no.5
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    • pp.439-445
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    • 2007
  • Stereoscopic viewing is an efficient technique for not only computer vision but also remote sensing applications. Generally, stereo pair obtained at the same time is necessary for 3D viewing, but it is possible to synthesize a stereomate suitable for stereo view with a single image and disparity-map. There have been researches concerning the generation of the synthetic stereomate from remote sensing imagery. However it is hard to find researches concerning the restoration of occlusion in stereomate. In this paper, we generated synthetic stereomates from remote sensing images, focused on the occlusion restoration. In order to figure out proper restoration methods depending on the spatial resolution of remote sensing imagery, we tested several methods including general interpolation and inpainting technique, then evaluated the results.

A Review on Mid-wave Infrared Remote Sensing Technique (중적외선 영역의 원격탐사 기술 고찰)

  • Lee, Kwon-Ho;Kim, Heeseob
    • Korean Journal of Remote Sensing
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    • v.38 no.6_1
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    • pp.1557-1571
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    • 2022
  • Throughout the wavelengths used by remote sensing sensors, the mid-wave infrared (MWIR) has wide applicability in our life such as land, environment, disasters, and military defense. However, due to the unique characteristics of the MWIR, remote sensing techniques in this wavelength region has not been greatly developed. Recently, the applied remote sensing techniques for the MWIR sensors are presenting in a new research field, and various research results are being reported domestically and internationally. In this study, research results on the MWIR remote sensing techniques developed were investigated and related literature records were statistically analyzed. Furthermore, based on the literature review of the current and past MWIR remote sensing techniques and major research results, current status and research trends of MWIR remote sensing are presented.

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

  • 연상호
    • Korean Journal of Remote Sensing
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    • v.2 no.2
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    • pp.69-77
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    • 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.

Investigation of NESDIS's Calibration Algorithm of the Imagers for IR Channels on GOES-12

  • Chang, Ki-Ho;Oh, Tae-Hyung;Ahn, Myung-Hwan;Cho, Nam-Seo;Oh, Sung-Nam
    • Korean Journal of Remote Sensing
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    • v.23 no.1
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    • pp.55-58
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    • 2007
  • The prototype radiometric calibration algorithm of the imagers for IR channels has been developed according to the Weinreb's method. Applying the algorithm to the GOES-12 count data, we have shown that the calibration coefficients (slope and intercept) evaluated by the algorithm gives good agreement with the NESDIS's ones, and that the scanning error due to the scan mirror emissivity and stripe error are almost eliminated by the East/West angle dependent scan-mirror correction and the respective calculation of intercept for each North/South scan line, respectively.

Remote Sensing Applications in Korea (한국의 원격탐사 활용)

  • Jung, Hyung-Sup;Park, Sang-Eun;Kim, Jin-Soo;Park, No-Wook;Hong, Sang-Hoon
    • Korean Journal of Remote Sensing
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    • v.35 no.6_3
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    • pp.1161-1171
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    • 2019
  • As there is a growing interest in remote sensing applications, the Korean Society of Remote Sensing has published several special issues in which articles on specific research topics were collected. In this special issue, we first review the research topics on several special issues published in the Korean Journal of Remote Sensing by 1) the National Institute of Agricultural Sciences (NAS), the Korea Environment Institute (KEI), the Ministry of Environment (ME) and the Korea Aerospace Research Institute (KARI) in 2017 and 2) the Korea Institute of Ocean Science and Technology (KIOST), the Korea Polar Research Institute (KOPRI), KARI, and Korea Meteorological Administration (KMA) in 2018. Then, research articles on the remote sensing applications in Korea are introduced.

A Comparative Review of the Satellite Remote Sensing (위성원격탐사에 관한 비교법적 고찰)

  • Kim, Young-Ju
    • The Korean Journal of Air & Space Law and Policy
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    • v.35 no.1
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    • pp.203-319
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    • 2020
  • The regulation of satellite remote sensing is generally included with the scope of statutes governing outer space activities. But not all states opted for dedicated satellite remote sensing regulation. The decision whether to do so depends in part on the specific capabilities of national satellite remote sensing programs. Five states that have dedicated statutes governing operations with remote sensing data are the United States, with its developed Landsat regime (the Land Remote Sensing Policy Act of 1992, LRSPA), Canada, with its Remote Sensing Systems Act, Germany, with its Satellite Data Securities Protection Act (SatDSiG), France, with its Law on Space Operations (LOS), Japan, with its Act on Ensuring Appropriate Handling of Satellite Remote Sensing Data. The major purpose of this article is to shed light on some legal issues surrounding remote sensing activities by comparative review. The paper analyzes international conventions or soft law and national law and policies relating to satellite remote sensing. It also offers some implications and suggestions for regulations of satellite remote sensing operations and satellite data.

A Perspective on Radar Remote Sensing of Soil Moisture

  • Park, Sang-Eun
    • Korean Journal of Remote Sensing
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    • v.27 no.6
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    • pp.761-771
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    • 2011
  • The sensitivity of microwave scattering to the dielectric properties and the geometric structure of soil surfaces makes radar remote sensing a challenge for a wide range of environmental issues directly related to the condition of natural surfaces. Especially, the potential for retrieving soil moisture with a high spatial and/or temporal resolution represents a significant contribution to hydrological and ecological modeling. This paper aims to review the current state of the art in SAR technology and methodological issues towards the discovery of a new potential accurate monitoring of soil moisture changes. In this paper, important parameters or constraints significantly affect the sensitivity of the measurements to soil moisture, such as roughness statistics, spatial resolution, and local topography, are discussed to improve the applicability of SAR remote sensing techniques. This study particularly intends to discuss important notes for developing smart and reliable methods capable of retrieving geophysical information.

Remote Sensing and Ecosystem Management in Korea (한국에서의 원격탐사와 생태계 관리)

  • Kim, Dae-Seon;Ryu, Cheol-Sang;Chun, Seung-Kyu
    • Journal of Environmental Impact Assessment
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    • v.3 no.1
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    • pp.77-82
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    • 1994
  • A Nationwide survey of ecosystem in the Republic of Korea was accomplished from 1986 to 1990 and in that survey, GIS and remote sensing were used partially. This was done by the Ministry of Environment(MOE), which introduced remote sensing and GIS for environment management in late 1980's. Especially the National Institute of Environmental Research (NIER) are under the research on systematization of environmental information with an ultimate goal of application of GIS and remote sensing to environmental impact assessment. Although the Korean peninsula is in a non-tropical zone, we introduce two case studies on remote sensing applications to ecosystem managements in the Republic of Korea. One is a study on change detection in urban vegetation of Seoul with Landsat data and the other is a study on detection of insect damaged pine tree area using Landsat TM data. The techniques involved and the conclusion from these studies were relevant to vegetation studies in tropical ecosystem.

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Status of Korean Research Activity on Arctic Sea Ice Monitoring using KOMPSAT-series Satellite

  • Kim, Hyun-cheol;Chae, Tae-Byeong
    • Journal of the Korean earth science society
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    • v.40 no.4
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    • pp.329-339
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    • 2019
  • Arctic warming is a global issue. The sea ice in the Arctic plays a crucial role in the climate system. We thought that a recent abnormality in many countries in the northern hemisphere could be related to the effects of shrinking sea ice in the Arctic. Many research groups monitor sea ice in the Arctic for climate research. Satellite remote sensing is an integral part of Arctic sea ice research due to the Arctic's large size, making it difficult to observe with general research equipment, and its extreme environment that is difficult for humans to access. Along with monitoring recent weather changes, Korea scientists are conducting polar remote sensing using a Korean satellite series to actively cope with environmental changes in the Arctic. The Korean satellite series is known as KOMPSAT (Korea Multi-Purpose Satellite, Korean name is Arirang) series, and it carries optical and imaging radar. Since the organization of the Satellite Remote Sensing and Cryosphere Information Center in Korea in 2016, Korean research on and monitoring of Arctic sea ice has accelerated rapidly. Moreover, a community of researchers studying Arctic sea ice by satellite remote sensing increased in Korea. In this article, we review advances in Korea's remote sensing research for the polar cryosphere over the last several years. In addition to satellite remote sensing, interdisciplinary studies are needed to resolve the current limitations on research on climate change.

Detection of low Salinity Water in the Northern East China Sea During Summer using Ocean Color Remote Sensing

  • Suh, Young-Sang;Jang, Lee-Hyun;Lee, Na-Kyung
    • Korean Journal of Remote Sensing
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    • v.20 no.3
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    • pp.153-162
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    • 2004
  • In the summer of 1998-2001, a huge flood occurred in the Yangtze River in the eastern China. Low salinity water less than 28 psu from the river was detected around the southwestern part of the Jeju Island, which is located in the southern part of the Korean Peninsula. We studied how to detect low salinity water from the Yangtze River, that cause a terrible damage to the Korean fisheries. We established a relationships between low salinity at surface, turbid water from the Yangtze River and digital ocean color remotely sensed data of SeaWiFS sensor in the northern East China Sea, in the summer of 1998, 1999, 2000 and 2001. The salinity charts of the northern East China Sea were created by regeneration of the satellite ocean color data using the empirical formula from the relationships between in situ low salinity, in situ measured turbid water with transparency and SeaWiFS ocean color data (normalized water leaving radiance of 490 nm/555 nm).