摘要
路径无关的数字图像相关法(PiDIC)使用基于快速傅立叶变换的互相关算法独立估算每一个观测点上的整像素位移,作为高精度反向复合高斯-牛顿算法的迭代初值,计算观测点的亚像素位移。该方法表现出优良的精度和抗噪性,用基于图形处理器(GPU)的并行计算对其进行加速,可在不损失精度的条件下大幅度的提升计算速度。
引文
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