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Angular dependence of sampling modulation transfer function

机译:采样调制传递函数的角度依赖性

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Sampling modulation transfer function (MTF) as defined in Park et al. [Appl. Opt. 23, 2527-2582 (1984)] as an x and y sampling can be generalized for image data not .along x and y directions. For a given sampling lattice (such as in a laser printer, a scene projector, or a focal-plane array), we construct a two-dimensional sampling MTF based on the distance between nearest samples in each Because the intersample distance depends on direction, the sampling MTF will be best in the directions of highest spatial sampling and poorer in the directions of sparse sampling We compare hexagonal and rectangular lattices in terms of their equivalent spatial frequency bandwidth We filter images as a demonstration of the angular-dependent two-dimensional sampling MTF. # 1997 Optical Society of America
机译:如Park等人所定义的采样调制传递函数(MTF)。 [应用选择。 23,2527-2582(1984)]作为x和y采样可以推广用于非x和y方向的图像数据。对于给定的采样点阵(例如在激光打印机,场景投影仪或焦平面阵列中),我们根据每个采样点之间最近的采样点之间的距离构造一个二维采样MTF。因为采样点间的距离取决于方向,采样MTF在最高空间采样的方向上将是最佳的,而在稀疏采样方向的将是较差的。我们在六角形和矩形晶格的等效空间频率带宽方面进行比较,我们对图像进行滤波以证明与角度相关的二维采样MTF。 #1997美国眼镜学会

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