公开(公告)号：US06790688B2

公开(公告)日：2004-09-14

申请号：US10252416

申请日：2002-09-24

申请人： Thomas Daniel Raymond ,  Daniel Richard Hamrick ,  Daniel Ralph Neal

发明人： Thomas Daniel Raymond ,  Daniel Richard Hamrick ,  Daniel Ralph Neal

IPC分类号： H01L2166

CPC分类号： G06T5/20 ,  G06T7/0004 ,  G06T2200/04 ,  G06T2207/30148

摘要： An improved method of high pass filtering a data set includes flattening the data set and then filtering the flattened data set with an adaptive filter. The data set is flattened by fitting it to a predetermined function, and then obtaining the difference between the original data set and the fitted data set. Beneficially, the predetermined function is a polynomial. The adaptive filter includes a masking function that has a constant, non-zero value (e.g., 1) within the bounds of the original data set and value of zero outside the bounds of the original data set.

摘要翻译： 数据集的高通滤波的改进方法包括对数据集进行平坦化，然后用自适应滤波器对平坦化数据集进行滤波。 数据集通过将其拟合到预定的功能而变平，然后获得原始数据集和拟合数据集之间的差异。 有利地，预定函数是多项式。 自适应滤波器包括掩蔽函数，其在原始数据集的边界内具有恒定的非零值（例如，1），并且在原始数据集的边界之外的零值。