Automation of landslide detection using optical images and lidar data

Kuo Hsin Hsiao, Jin King Liu, Chi Chung Lau, Jiann-Yeou Rau

研究成果: Conference contribution

摘要

Both of optical images and airborne LiDAR data are used to recognize landslide features in this study. NDVI and green index derived from spectral information of optical images are used at the first to obtain a preliminary distribution of landslides. Subsequently, parameters derived from DSM and DEM of airborne LiDAR data are applied, including slope gradients, OHM and surface roughness. The study area is in Shimen Watershed of northern Taiwan. After a comparison of the automated-recognized landslides and those interpreted manually by aerial photo-interpretation, an accuracy of 63.32 % is achieved when only NDVI is applied whereas it is 84.79% when slope gradient is included. An accuracy of 94.5 % is achieved after manual editing with additional thematic information is included such as known agriculture land-use, roads and rivers. Four parameters are included in an automated recognition of landslides, namely greenness, slope, OHM and roughness. The foremost one is derived from orthophoto and the other three are derived from LiDAR data. They can be applied by selecting training areas for automatically setting of default values for region-growing and adoptive thresholds. This can effectively recognize local distribution of landslides.

原文English
主出版物標題30th Asian Conference on Remote Sensing 2009, ACRS 2009
頁面1889-1894
頁數6
出版狀態Published - 2009 十二月 1
事件30th Asian Conference on Remote Sensing 2009, ACRS 2009 - Beijing, China
持續時間: 2009 十月 182009 十月 23

出版系列

名字30th Asian Conference on Remote Sensing 2009, ACRS 2009
3

Other

Other30th Asian Conference on Remote Sensing 2009, ACRS 2009
國家China
城市Beijing
期間09-10-1809-10-23

指紋

Landslides
Optical radar
Automation
Surface roughness
Watersheds
Land use
Agriculture
Rivers
Antennas

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

引用此文

Hsiao, K. H., Liu, J. K., Lau, C. C., & Rau, J-Y. (2009). Automation of landslide detection using optical images and lidar data. 於 30th Asian Conference on Remote Sensing 2009, ACRS 2009 (頁 1889-1894). (30th Asian Conference on Remote Sensing 2009, ACRS 2009; 卷 3).
Hsiao, Kuo Hsin ; Liu, Jin King ; Lau, Chi Chung ; Rau, Jiann-Yeou. / Automation of landslide detection using optical images and lidar data. 30th Asian Conference on Remote Sensing 2009, ACRS 2009. 2009. 頁 1889-1894 (30th Asian Conference on Remote Sensing 2009, ACRS 2009).
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abstract = "Both of optical images and airborne LiDAR data are used to recognize landslide features in this study. NDVI and green index derived from spectral information of optical images are used at the first to obtain a preliminary distribution of landslides. Subsequently, parameters derived from DSM and DEM of airborne LiDAR data are applied, including slope gradients, OHM and surface roughness. The study area is in Shimen Watershed of northern Taiwan. After a comparison of the automated-recognized landslides and those interpreted manually by aerial photo-interpretation, an accuracy of 63.32 {\%} is achieved when only NDVI is applied whereas it is 84.79{\%} when slope gradient is included. An accuracy of 94.5 {\%} is achieved after manual editing with additional thematic information is included such as known agriculture land-use, roads and rivers. Four parameters are included in an automated recognition of landslides, namely greenness, slope, OHM and roughness. The foremost one is derived from orthophoto and the other three are derived from LiDAR data. They can be applied by selecting training areas for automatically setting of default values for region-growing and adoptive thresholds. This can effectively recognize local distribution of landslides.",
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Hsiao, KH, Liu, JK, Lau, CC & Rau, J-Y 2009, Automation of landslide detection using optical images and lidar data. 於 30th Asian Conference on Remote Sensing 2009, ACRS 2009. 30th Asian Conference on Remote Sensing 2009, ACRS 2009, 卷 3, 頁 1889-1894, 30th Asian Conference on Remote Sensing 2009, ACRS 2009, Beijing, China, 09-10-18.

Automation of landslide detection using optical images and lidar data. / Hsiao, Kuo Hsin; Liu, Jin King; Lau, Chi Chung; Rau, Jiann-Yeou.

30th Asian Conference on Remote Sensing 2009, ACRS 2009. 2009. p. 1889-1894 (30th Asian Conference on Remote Sensing 2009, ACRS 2009; 卷 3).

研究成果: Conference contribution

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Hsiao KH, Liu JK, Lau CC, Rau J-Y. Automation of landslide detection using optical images and lidar data. 於 30th Asian Conference on Remote Sensing 2009, ACRS 2009. 2009. p. 1889-1894. (30th Asian Conference on Remote Sensing 2009, ACRS 2009).