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基于非局部相似度约束的多通道复用压缩遥感成像方法

Keywords: 遥感成像 压缩感知 多通道复用 非局部相似度

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Abstract:

结合压缩感知成像原理和遥感成像系统的物理可实现性, 提出了采用掩膜编码的多通道复用压缩成像方法.首先, 采用多组随机二值伯努利分布的掩膜为不同光学通道视场进行压缩编码, 在单位积分时间内采集重构图像所需的欠采样数据.然后, 针对传统的全变分范数最小化的重构方法易受遥感图像局部突出特征干扰的问题, 提出了以遥感图像空间域非局部相似度为正则化重构标准的先验约束.实验结果验证了此压缩成像方法的可行性.与传统算法相比, 此重构算法能够在保留图像细节的同时实现有效重构

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