基于方差补偿矩匹配的红外图像非均匀性校正方法

Guangxue Xuebao/Acta Optica Sinica(2013)

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Abstract
红外焦平面阵列的非均匀性校正是其定量应用之前必须解决的关键难题之一.将矩匹配方法引入到红外图像非均匀性校正中,针对其改变图像中地物光谱分布,并可能产生新条带噪声的缺陷,通过比较标准矩匹配前后每个探测元的输出与其均值差异,提出了一种方差补偿的矩匹配改进方法.实验图像校正结果的定性与定量分析表明,方差补偿的矩匹配方法效果理想,在校正图像非均匀性的同时,更大程度上保留了不同地物本身光谱特征的差异.
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Key words
Infrared focal plane arrays,Moment matching,Non-uniformity correction,Remote sensing,Standard deviation value compensation
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