Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회지)

Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회)
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Construction Method of ECVAM using Land Cover Map and KOMPSAT-3A Image

토지피복지도와 KOMPSAT-3A위성영상을 활용한 환경성평가지도의 구축

  • Kwon, Hee Sung (Dept. of Spatial Information, Kyungpook National University) ;
  • Song, Ah Ram (Dept. of Convergence & Fusion System Engineering, Kyungpook National University) ;
  • Jung, Se Jung (Dept. of Convergence & Fusion System Engineering, Kyungpook National University) ;
  • Lee, Won Hee (Dept. of Convergence & Fusion System Engineering, Kyungpook National University)
  • Received : 2022.07.15
  • Accepted : 2022.10.19
  • Published : 2022.10.31
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Abstract

In this study, the periodic and simplified update and production way of the ECVAM (Environmental Conservation Value Assessment Map) was presented through the classification of environmental values using KOMPSAT-3A satellite imagery and land cover map. ECVAM is a map that evaluates the environmental value of the country in five stages based on 62 legal evaluation items and 8 environmental and ecological evaluation items, and is provided on two scales: 1:25000 and 1:5000. However, the 1:5000 scale environmental assessment map is being produced and serviced with a slow renewal cycle of one year due to various constraints such as the absence of reference materials and different production years. Therefore, in this study, one of the deep learning techniques, KOMPSAT-3A satellite image, SI (Spectral Indices), and land cover map were used to conduct this study to confirm the possibility of establishing an environmental assessment map. As a result, the accuracy was calculated to be 87.25% and 85.88%, respectively. Through the results of the study, it was possible to confirm the possibility of constructing an environmental assessment map using satellite imagery, optical index, and land cover classification.

본 연구에서는 KOMPSAT-3A 위성영상과 세분류 토지피복지도를 이용한 환경가치등급 분류를 수행하여 국토환경성평가지도의 주기적인 갱신 및 제작 가능성을 제시하였다. 환경성평가지도(ECVAM: Environmental Conservation Value Assessment Map)는 62개의 법제적 평가항목과 8개의 환경·생태적 평가항목을 기준으로 국토의 환경적 가치를 5단계의 등급으로 평가한 지도이며, 1:25000과 1:5000의 두 가지 축척으로 제공되고 있다. 하지만 1:5000 축척의 환경성평가지도는 참조자료의 부재 및 상이한 제작년도 등 다양한 제약조건으로 인해 1년 단위의 느린 갱신주기로 제작되고 있다. 이에 본 연구에서는 KOMPSAT-3A 위성영상과 광학지수(SI: Spectral Indices) 그리고 세분류 토지피복지도를 활용하여 딥러닝 기법 중 하나인 CNN (Convolutional Neural Network)을 기반으로 정확하고 최신정보가 반영된 1:5000 환경성평가지도를 구축 가능성을 확인하고자 한다. 실험 결과, 본 연구에서 제시한 방법으로 제작한 환경성평가지도의 정확도는 각각 87.25%, 85.88%로 산출되었다. 연구의 결과를 통하여 위성영상, 광학지수 그리고 토지피복분류를 활용한 환경성평가지도의 구축 가능성을 확인할 수 있었다.

Keywords

Acknowledgement

이 논문은 2020년 정부(국토교통부)의 재원으로 공간정보융복합 핵심인재 양성사업의 지원을 받아 수행된 연구임(과 2020-01-01)

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