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(英)基于多帧配准的红外焦平面阵列非均匀性自适应校正

Keywords: 红外焦平面阵列,非均匀性校正,最小均方,多帧配准

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Abstract:

提出了一种场景自适应的非均匀性校正固定图案噪声去除方法.基于多帧配准和相邻帧之间的全局位移估计,利用最小均方算法迭代计算均方误差函数,同时结合误差函数均方差以及互相关峰值,从而能够自适应场景变化.所提出的算法充分利用相邻多帧之间的相关性,对模拟和实际红外图像序列非均匀性的校正效果突出.实验结果表明本方法能够精确估计非均匀性参数,收敛速度较快,几乎不残留鬼影.

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