Landslide Fissure Inference Assessment by ANFIS and Logistic Regression Using UAS-Based Photogrammetry

ISPRS International Journal of Geo-Information

Ozgun Akcay¹ 

[1] Faculty of Engineering, Department of Geomatics Engineering, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey; E-Mail

关键词: photogrammetry;    fuzzy logic;    landslide;    fissure;    orthophotos;    image processing;    Unmanned Aerial System (UAS);   

DOI  :  10.3390/ijgi4042131

来源: mdpi

【 摘 要 】

Unmanned Aerial Systems (UAS) are now capable of gathering high-resolution data, therefore, landslides can be explored in detail at larger scales. In this research, 132 aerial photographs were captured, and 85,456 features were detected and matched automatically using UAS photogrammetry. The root mean square (RMS) values of the image coordinates of the Ground Control Points (GPCs) varied from 0.521 to 2.293 pixels, whereas maximum RMS values of automatically matched features was calculated as 2.921 pixels. Using the 3D point cloud, which was acquired by aerial photogrammetry, the raster datasets of the aspect, slope, and maximally stable extremal regions (MSER) detecting visual uniformity, were defined as three variables, in order to reason fissure structures on the landslide surface. In this research, an Adaptive Neuro Fuzzy Inference System (ANFIS) and a Logistic Regression (LR) were implemented using training datasets to infer fissure data appropriately. The accuracy of the predictive models was evaluated by drawing receiver operating characteristic (ROC) curves and by calculating the area under the ROC curve (AUC). The experiments exposed that high-resolution imagery is an indispensable data source to model and validate landslide fissures appropriately.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.