基于高分遥感影像的黄土高原地区水体高精度提取

发布时间：2018-06-20 15:05

本文选题：水体提取 + 黄土高原地区　；参考：《国土资源遥感》2017年04期

【摘要】：黄土高原地区水体特征复杂多样,基于高空间分辨率遥感影像在大面积范围内,现有提取方法很难兼顾精度与效率,故提出一种新型的水体精细化自动提取方法。首先,在全局范围内根据不同的水体类型使用面向对象的影像分析技术按照不同的规则方法初步提取水体的主体部分,形成水体的种子区域;然后,在局部范围内根据同一地物的光谱相似性,进行区域种子生长,实现水体的高精度提取。结果表明,使用该方法提取的水体边缘可以较好地与影像吻合,更能保证水体的完整性,有效减少干扰信息,提升运算效率。
[Abstract]:The characteristics of water body in Loess Plateau are complex and diverse. Based on high spatial resolution remote sensing image in a large area, it is difficult for existing extraction methods to take into account accuracy and efficiency. Therefore, a new method of water body refinement and automatic extraction is proposed. First of all, according to different water body types, the object oriented image analysis technique is used in the global scope to extract the body parts of the water body according to different rules, so as to form the seed area of the water body. According to the spectral similarity of the same ground object, the regional seed growth is carried out in the local scope, and the high precision extraction of water body is realized. The results show that the edge of the water body extracted by this method is in good agreement with the image, which can ensure the integrity of the water body, effectively reduce the interference information, and improve the efficiency of operation.
【作者单位】：北京地拓科技发展有限公司;北京林业大学;水利部水土保持监测中心;
【基金】：高分水利遥感应用示范系统(一期)“高分辨率对地观测系统重大专项”(编号:08-Y30B07-9001-13/15) 水利部综合事业局拔尖人才培养专项共同资助
【分类号】：TP751;X87

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