基于面积比分割的面状水域提取方法研究

针对目前遥感影像中面状水域提取算法的自动化程度不高的问题,本文提出了一种基于面积比分割的面状水域提取算法。首先,利用矢量数据提供的面积作为先验信息,对待提取的遥感影像进行图像分割,经过去噪、边缘检测等环节实现面状水域的初步提取;然后将初步提取的面状水域带入到主动轮廓模型中,作为初始边界对面状水域进行精确提取;最后,以天绘影像对上述算法进行验证,结果表明:该算法能够有效提取面状水域,提高现有算法的自动化程度。

Water Boundary Extraction Algorithm Based on Area Ratio Segmentation

A remote sensing image segmentation algorithm based on area prior information is proposed.It could help with high resolution remote sensing image in the water area segmentation,the method through the existing vector data access to surface waters in the area of information,we use area ratio method obtained threshold image segmentation,after the process of denoising,and edge detection process to achieve effective segmentation of planar water domain.Experimental results show that the method can well eliminate,factors across the state water extraction effect,at the same time having the effective extraction of waters.