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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Remote Sensing
Journal Basic Information
Journal DOI :
The Korean Society of Remote Sensing
Editor in Chief :
Volume & Issues
Volume 26, Issue 6 - Dec 2010
Volume 26, Issue 5 - Oct 2010
Volume 26, Issue 4 - Aug 2010
Volume 26, Issue 3 - Jun 2010
Volume 26, Issue 2 - Apr 2010
Volume 26, Issue 1 - Feb 2010
Selecting the target year
Reflectivity Mosaic of Two Radars Using a Height-weighted Method
Lee, Jung-Hoon ; Jung, Sung-Hwa ; Heo, Bok-Haeng ; Kim, Kyung-Eak ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 373~385
A new method to mosaic reflectivity over the overlapped coverage of two radars was developed. The method mosaics the radar reflectivity with weights after adjustment of reflectivity differences on overlapped coverage of neighboring two radars. Their weights are inverse proportion to the difference between the height of an interpolated reflectivity and the level of CAPPI (Constant Altitude PPI). The performance of this method was compared to different mosaic methods (Mosaics by maximum value, averaged value, nearest value and distance weighted value) using the reflectivity fields of a typhoon event observed by two radar. New method was better than any other methods either as a continuity and as a bias analysis of reflectivity at the boundaries in overlapped coverage by two radars.
Possibility of Applying Infrared Background Threshold Values for Detecting Asian dust in Spring from Geostationary Satellite
Hong, S.J. ; Kim, J.H. ; Ha, J.S. ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 387~394
There has been an increasing trend in damaging by the Asian dust in spring. The continuous monitoring of the dust event with IR channels in geostationary satellite is very useful for forecasting and preventing the event. However, the monitoring with the IR channels revealed various problems associated with sensitivity. To eliminate these problems, we introduced a new concept of monitoring by constructing the background threshold values (BTV) and aerosol index (AI). This paper is about to test the reliability of this concept by applying to geostationary satellite, MTSAT-1R.
An Adaptive Dynamic Range Linear Stretching Method for Contrast Enhancement
Kim, Yong-Min ; Choi, Jae-Wan ; Kim, Yong-Il ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 395~401
Image enhancement algorithm aims to improve the visual quality of low contrast image through eliminating the noise and blurring, increasing contrast, and raising detail. This paper proposes adaptive dynamic range linear stretching(ADRLS) algorithm based on advantages of existing methods. ADRLS method is focused on generating sub-histograms of the majority through partitioning the histogram of input image and applying adaptive scale factor. Generated sub-histograms are finally applied by linear stretching(LS) algorithm. In order to validate proposed method, it is compared with LS and histogram equalization(HE) algorithm generally used. As the result, the proposed method show to improve contrast of input image and to preserve distinct characteristics of histogram by controlling excessive change of brightness.
NDVI Noise Interpolation Using Harmonic Analysis
Park, Soo-Jae ; Han, Kyung-Soo ; Pi, Kyoung-Jin ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 403~410
NDVI(Normalized Difference Vegetation Index), which is broadly used as short-term data composite, is an important parameter for climate change and long-term land surface monitoring. Although atmospheric correction is performed, NDVI dramatically appears several low peak noise in the long-term time series. They are related to various contaminated sources, such as cloud masking problem and wet ground condition. This study suggests a simple method through harmonic analysis for reducing NDVI noise using SPOT/VGT NDVI 10-day MVC data. The harmonic analysis method is compared with the polynomial regression method suggested previously. The polynomial regression method overestimates the NDVI values in the time series. The proposed method showed an improvement in NDVI correction of low peak and overestimation.
Type Classification of Forestland Value by Using GIS Analysis
Ha, Do ; Kim, Young-Seup ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 411~419
The type of forestland value was evaluated using various thematic maps, satellite images, and aerial photograph of Namyangju, Based on GIS analysis, forestland value was classified into 4 kind types; conservation, production, recreation, and development values. Finally, the comprehensive analysis map of forestland value was made according to the priority order of value assessment. Among the whole forestland of Namyangju, conservation value area is
, high production value area
except the conservation value area, high recreation value area
, and the high development value area is
. Henceforward, The value evaluation system of forestland by using GIS is to be very applicable for the scientific management of forestland, according to the periodic data update.
Spatial and Temporal Variations of Satellite-derived 10-year Surface Particulate Organic Carbon (POC) in the East China Sea
Son, Young-Baek ; Lee, Tae-Hee ; Choi, Dong-Lim ; Jang, Sung-Tae ; Kim, Cheol-Ho ; Ahn, Yu-Hwan ; Ryu, Joo-Hyung ; Kim, Moon-Koo ; Jung, Seom-Kyu ; Ishizaka, Joji ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 421~437
Surface particulate organic carbon (POC) concentration estimated from Maximum Normalized Difference Carbon Index (MNDCI) algorithm using SeaWiFS data is used to determine spatial and temporal variations of the Changjiang Diluted Water (CDW) in the East China Sea. 10-year monthly POC concentrations (1997-2007) show clearly seasonal variations. Inter-annual variation of POC in whole and three different areas separated by standard deviation is not linearly correlated with the Changjiang River discharge that has decreased after 1998. To determine more detailed spatial and temporal POC variations, we used empirical orthogonal function (EOF) analysis in summer (Jun.-Sep.) from 2000 to 2007. First mode is spatially and temporally correlated with the area influenced by the Changjiang River discharge. Second mode is temporally less sensitive with the Changjiang River discharge but spatially correlated with north-south patterns. Relatively higher POC variations during 2000 and 2003 were shown in the southern East China Sea. These patterns during 2004 and 2007 moved to the northern East China Sea. This phenomenon is better related to spatial variations of wind-direction than the amount of Changjiang River discharge, which is verified from in-situ measurement.
Analysis and Improvement of Interior Orientation Accuracy of KOMPSAT-2 PANchromatic Bands
Kim, Tae-Jung ; Jeong, Jae-Hoon ; Kim, Deok-In ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 439~449
This paper reports experiments and analysis work done to find out the cause of Y parallex for stereo pairs of KOMPSAT-2 images and means to improve the Y parallex problem. We could conclude that the Y parallex problem was caused by resampling errors of KOMPSAT-2 PANchromatic bands, induced by the process of warping PANchromatic band with reference to multispectral bands. We could also conclude that a rigorous warping process could improve resampling of KOMPSAT-2 PANchromatic band and remove the Y parallex problem significantly. We also confirmed that a rigorous warping process could also remove blocky brightness patterns present on KOMPSAT-2 PANchromatic band. Therefore, by implementing more rigorous warping process within KOMPSAT-2 scene generation procedures, KOMPSAT-2 geometric and radiometric quality will be improved.
ISO and OGC Standards for Geo-spatial Image Information and Suggestions for Their Applications
Lee, Ki-Won ; Kang, Hae-Kyong ;
Korean Journal of Remote Sensing, volume 26, issue 4, 2010, Pages 451~464
In these days, application cases of national or international standards in the field of geo-spatial information based on information technology are being increased. Especially, demands regarding distribution, dissemination and interoperability of contents using geo-spatial images and these information resources are also on the increasing stage, so that standards as core elements supporting these trends are getting to be emphasized. However, interests on standards of geo-spatial image information processing including remotely sensed images and efforts for development and application of these standards are not enough, domestically. In this study, international standards for geo-spatial image information in ISO and OGC as well as the domestic status were reviewed with the summaries concerned. Comparison with international and domestic standards shows that most national standards were partly modified and translated with international ones, but there are rare cases of application plans or studies concerned in this field. If these situations are continued, industrial stack or applications of technologies regarding standards are getting lesser. Therefore, it is necessary to analyze some problems and to study strategy to overcome them, and the result of this study could be used for the initial works.