作者
Quang-Thanh Bui, Manh Pham Van, Nguyen Thi Thuy Hang, Quoc-Huy Nguyen, Nguyen Xuan Linh, Pham Minh Hai, Tran Anh Tuan, Pham Van Cu
发表日期
2019/10/3
期刊
International Journal of Digital Earth
卷号
12
期号
10
页码范围
1118-1132
出版商
Taylor & Francis
简介
This study proposed a novel object-based hybrid classification model named GMNN that combines Grasshopper Optimization Algorithm (GOA) and the multiple-class Neural network (MNN) for urban pattern detection in Hanoi, Vietnam. Four bands of SPOT 7 image and derivable NDVI, NDWI were used to generate image segments with associated attributes by PCI Geomatics software. These segments were classified into four urban surface types (namely water, impervious surface, vegetation and bare soil) by the proposed model. Alternatively, three training and validation datasets of different sizes were used to verify the robustness of this model. For all tests, the overall accuracies of the classification were approximately 87%, and the Area under Receiver Operating Characteristic curves for each land cover type was 0.97. Also, the performance of this model was examined by comparing several statistical indicators …
引用总数
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