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 高分辨率遥感图像中线状信息过分细节化,相应的对特征的提取带来很大干扰。引入一种基于方向和频率特征的遥感图像频域线状特征检测方法,并通过傅氏变换将图像变换到频率域。在详细分析线状特征和谱线的关系、线状特征和图像频率之间关系的基础上,由分析得到的方向和频率的参数构造Gabor滤波器进行图像线状特征的提取。高分辨率遥感图像试验结果表明,该方法能较好地提取图像的线状特征。 更多还原

【Abstract】 Information of linear features in high-resolution remotely sensed imagery is very prolific,consequently the immoderate specializations and influence of noise disturbances are serious,this made it difficult to detect and recognize the linear features of landscape targets.A method is discussed based on direction and frequency characters through designing frequency domain filter for the linear feature automatic recognition and detection,owed to Fourier transformation method transform the image into... 更多还原