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초록
This study aims to propose a methodology for detecting damaged trees caused by pitch canker using multi-Temporal high-resolution KOMPSAT satellite images. NDVI was calculated from each image obtained on March 15, 2015, and April 20, 2011, and then NDVI difference between 2015 and 2011 was also derived. If the spectral reflectance is consistent for two KOMPSAT images, a negative value of NDVI difference indicates foliage discoloration and the decrease of foliage mass in 2015. To detect candidates of damaged trees, suitable threshold was selected from (1) the NDVI of 2015 and (2) both NDVI of 2015 and NDVI difference. The detection accuracy was evaluated by field survey data. © 2018 Asian Association on Remote Sensing. All Rights Reserved.
키워드
high-resolution; KOMPSAT; multi-Temporal; NDVI; NDVI difference; Pitch Canker
- 제목
- PITCH CANKER DAMAGED TREES
- 저자
- Seon Lee, Hwa; Piao, Yan Yan; Sung Lee, Kyu
- 발행일
- 2018
- 유형
- Conference paper
- 저널명
- Proceedings - 39th Asian Conference on Remote Sensing: Remote Sensing Enabling Prosperity, ACRS 2018
- 권
- 5
- 페이지
- 2900 ~ 2901