遥感图像中云雾干扰的消除
ON REMOVING CLOUD INTERFERENCE IN REMOTE-SENSING IMAGES
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摘要: 本文是在O.R.Mitchell(1977)关于滤除卫星照片中云的掩盖一文的基础上,对去云的问题进行了进一步的研究。本文的发展有以下三点:(1)重新推导了关于云层失真的数学模型;(2)以新推出的数学模型为基础提出了两级滤波的处理方案;(3)提出了一种噪声抵消法和一种三维处理方案。对以上设想做了部分实验验证,在微型机上做了计算机模拟实验,还在S101图像处理系统上进行了正式实验,取得了初步有效的实验结果。
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关键词:
Abstract: Based on O. R. Mitchell s paper (1977), a further study is made on the problem of removing cloud interference in remote sensing images. Some advances are made: (1) re-established a new mathematical modei for cloud distortion; (2) suggested, with this model, a two-stage filtering scheme; (3) developed a filtering method by noise concelling and an approach of 3-dimension processing of the multispectral data. Simulation experiment with microcomputer and actual experiment with S101 image processing system both show good results. -
Robert Wallis, et al., An Approach to the Space Variant Restoration and Enhancement of Images, Image Scientific Mathematics, p. 107.[8]R. M. Mersereau, et al., IEEE Trans. on CAS, CAS-23(1976), 405. -
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