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http://dx.doi.org/10.7848/ksgpc.2018.36.6.589

Land Cover Mapping and Availability Evaluation Based on Drone Images with Multi-Spectral Camera  

Xu, Chun Xu (Dept. of Civil Engineering, Chungnam National University)
Lim, Jae Hyoung (Dept. of Civil Engineering, Chungnam National University)
Jin, Xin Mei (Dept. of Landscape Architecture, Chonbuk National University)
Yun, Hee Cheon (Dept. of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.36, no.6, 2018 , pp. 589-599 More about this Journal
Abstract
The land cover map has been produced by using satellite and aerial images. However, these two images have the limitations in spatial resolution, and it is difficult to acquire images of a area at desired time because of the influence of clouds. In addition, it is costly and time-consuming that mapping land cover map of a small area used by satellite and aerial images. This study used multispectral camera-based drone to acquire multi-temporal images for orthoimages generation. The efficiency of produced land cover map was evaluated using time series analysis. The results indicated that the proposed method can generated RGB orthoimage and multispectral orthoimage with RMSE (Root Mean Square Error) of ${\pm}10mm$, ${\pm}11mm$, ${\pm}26mm$ and ${\pm}28mm$, ${\pm}27mm$, ${\pm}47mm$ on X, Y, H respectively. The accuracy of the pixel-based and object-based land cover map was analyzed and the results showed that the accuracy and Kappa coefficient of object-based classification were higher than that of pixel-based classification, which were 93.75%, 92.42% on July, 92.50%, 91.20% on October, 92.92%, 91.77% on February, respectively. Moreover, the proposed method can accurately capture the quantitative area change of the object. In summary, the suggest study demonstrated the possibility and efficiency of using multispectral camera-based drone in production of land cover map.
Keywords
Land Cover Map; Multispectral; Orthoimage; Pixel-Based; Object-Based; Time Series;
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