斑点图像的双光谱分析

Fifth ASSP Workshop on Spectrum Estimation and Modeling Pub Date : 1900-01-01 DOI:10.1109/SPECT.1990.205528

S. Wear, M. Raghuveer

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引用次数: 3

摘要

相干散斑噪声被建模为一个乘法噪声过程。使用对数变换，当使用积分孔径时，该散斑噪声被转换为信号无关的加性过程，该过程接近高斯。当独立的多个快照可用时，对这种对数变换的图像进行散斑退化图像的双谱重建。

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Bispectral analysis of speckled images

Coherent speckle noise is modeled as a multiplicative noise process. Using a logarithmic transformation, this speckle noise is converted to a signal independent, additive process which is close to Gaussian when an integrating aperture is used. Bispectral reconstruction of speckle-degraded images is performed on such logarithmically transformed images when independent multiple snapshots are available.<>

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Fifth ASSP Workshop on Spectrum Estimation and Modeling

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