Risk based parameter selection for polarimetric SAR speckle reduction

Risk based parameter selection for polarimetric SAR speckle reduction
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DOI:
10.1109/igarss.2014.6947504
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发表时间:
2014-07
期刊:
2014 IEEE Geoscience and Remote Sensing Symposium
影响因子:
--
通讯作者:
O. D’Hondt;S. Guillaso;O. Hellwich
O. D’Hondt;S. Guillaso;O. Hellwich
中科院分区:
其他
文献类型:
--
作者:
O. D’Hondt;S. Guillaso;O. Hellwich

文献摘要

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本文介绍了一种偏振双侧滤波器的自动参数选择技术。该方法受到无偏风险估计理论的启发,该理论允许比较相对于损失函数的不同估计量。此外,局部风险估计允许空间变化的参数。我们在实验数据上展示了我们的方法,并展示了该方法如何提高均匀区域滤波器的平滑能力,同时保持其边缘保持特性。
In this paper, we introduce an automatic parameter selection technique for the polarimetric bilateral filter. The method is inspired by the theory of unbiased risk estimation that allows to compare different estimators with respect to a loss function. Moreover, a local risk estimation allows spatially varying parameters. We demonstrate our approach on experimental data and show how the method improves the smoothing capabilities of the filter in homogeneous areas while retaining its edge preserving properties.