一种可用于调制传递函数计算的新型边缘扩散函数拟合模型
摘要
We propose a new analytical edge spread function (ESF) fitting model to measure the modulation transfer function (MTF). The ESF data obtained from a slanted-edge image are fitted to our model through the non-linear least squares (NLLSQ) method. The differentiation of the ESF yields the line spread function (LSF), the Fourier transform of which gives the profile of two-dimensional MTF. Compared with the previous methods, the MTF estimate determined by our method conforms more closely to the reference. A practical application of our MTF measurement in degraded image restoration also validates the accuracy of our model.
引用本文（GB/T 7714）
Tiecheng Li, Huajun Feng, Zhihai Xu. 一种可用于调制传递函数计算的新型边缘扩散函数拟合模型[J]. Chinese Optics Letters, 2011.
引文网络
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