Linear Image Approximations
This chapter presents approximations for simple calculation of CTEM and STEM (BF, ADF, and confocal) images using linear image models. A linear image is the convolution of an object function and the point spread function (multiplication in Fourier transform space). This can provide a simple intuitive approach to interpreting the electron micrographs although it might not be particularly accurate.
KeywordsTransfer Function Spatial Frequency Point Spread Function Transmission Function Source Size
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