遙感圖像中云霧干擾的消除
ON REMOVING CLOUD INTERFERENCE IN REMOTE-SENSING IMAGES
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摘要: 本文是在O.R.Mitchell(1977)關(guān)于濾除衛(wèi)星照片中云的掩蓋一文的基礎(chǔ)上,對去云的問題進行了進一步的研究。本文的發(fā)展有以下三點:(1)重新推導(dǎo)了關(guān)于云層失真的數(shù)學(xué)模型;(2)以新推出的數(shù)學(xué)模型為基礎(chǔ)提出了兩級濾波的處理方案;(3)提出了一種噪聲抵消法和一種三維處理方案。對以上設(shè)想做了部分實驗驗證,在微型機上做了計算機模擬實驗,還在S101圖像處理系統(tǒng)上進行了正式實驗,取得了初步有效的實驗結(jié)果。
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關(guān)鍵詞:
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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