An experimental-numerical hybrid technique,which combines together smoothed cubic spline and finite element method, is presented in this paper.
提出了一种三次样条平滑技术和有限元相结合的实验一数值混合法,推导了有关理论和公式,给出了求解网格线交点的迭代方法,经数值试验并通过实验应用证明了该方法的有效性和优越性。
This paper analyzes the function and the present condition of hyperspectral data s noise filtering deeply, and realized a method of noise filtering which is based on the cubic smooth spline.
分析了高光谱遥感数据噪声滤波的作用和现状,实现了一种基于三次光滑样条函数的高光谱遥感数据噪声滤波算法,解决了目前高光谱遥感数据噪声滤波算法自适应效果不理想的问题。
This method combines I he homomorphic filtering and B spline smoothing.
该方法将同态滤波和B样条平滑相结合,首先采用高斯同态滤波器对污染图像滤波,得到初步估计的偏差场;然后从中选出感兴趣区域用B样条拟合出平滑的偏差场。