摘要
本文通过对高分三号的SAR影像进行预处理,包括辐射定标、复数据转换、多视处理、滤波处理以及转DB影像,对长春地区的影像进行水体提取操作,使用的方法为阈值法,并将提取的水体信息对比高分二号的高分辨率多光谱影像提取的水体信息,以确定水体提取的正确性。
In this paper, we discuss the water extraction operation with GF-3 satellite SAR image in Changchun area. At f irst, we preprocess GF-3 satellite SAR image, including radiation calibration, data conversion, multi-visual processing, f ilter processing and transfer the DB images. Then we extract water from the images using the method of threshold value, and check the correctness with water body information extracted from the GF-2 high resolution multispectral images.
出处
《科技创新导报》
2018年第32期66-70,共5页
Science and Technology Innovation Herald
关键词
高分三号
水体提取
合成孔径雷达
GF-3
Water extraction
SAR (Synthetic Aperture Radar)
