Special Issue for Applications of Remote Sensing in Private Companies : Case Examinations
Trial of Automated Flood Area Extraction from Optical Satellite Images
2020 Volume 40 Issue 3 Pages 163-166
Details
2020 Volume 40 Issue 3 Pages 163-166
This study attempted to explore a faster and low cost solution for flood area extraction by integrating convolution neural networks (CNNs) with high resolution (1.5 m) SPOT satellite images. By consider the system requirement as a measure of cost, capabilities (speed and accuracy) of a deeper (ResNet101) and a shallower (MobileNetV2) CNNs on flood mapping were examined and compared. The models were trained and tested with satellite images captured during several flood events occurred in Japan. It is observed from the results that ResNet101 obtained better flood area mapping accuracy than MobileNetV2. Whereas, MobileNetV2 is having much higher capabilities in faster mapping in 0.3 sec/km2 with a competitive accuracy and minimal system requirements than ResNet101.
