摘要
合成孔径雷达（ＳＡＲ）因为相干成像原理所固有的相干斑噪声是影响其图像质量的主要原因。文中根据ＳＡＲ图像的纹理特征和相干斑噪声的统计特征，提出了一种基于区域分集的相干斑抑制算法。本算法能够完全保留ＳＡＲ图像边缘特征，同时对相干斑具有较好的抑制能力。实验结果表明，本算法处理效果优于目前常用的相干斑滤波算法。
The coherent-imaging principle of Synthetic Aperture Radar causes speckle niose, which is the major problem of SAR images. According to the characteristics of SAN image details and speckle distribution, this peper puts forward a speckle-reduction algorithm based on region division. This algorithm can protect edge-characteristics of SAR image, along with a very good speckle reduction effort. Eperimental result shows that this algorithm is better than other existing speckle reduction methods.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1996年第2期113-115,共3页
Journal of University of Electronic Science and Technology of China
基金
国家科委863高科技项目
关键词
合成孔径雷达
相干斑抑制
图像处理
区域分集
synthetic aperture radar
speckle reduction
image processing
distribution characteristics analysis
region division.
