Digital image processing for high resolution electron microscopy.
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概要
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Two kinds of image processing techniques can be applied to the high resolution electron microscope (HREM) images : one in the real space (averaging of periodic images) and the other in the Fourier space. There are several methods in the latter, such as ring masking, window masking and a CTF (contrast transfer function) compensation using the Wiener filter.<BR>The Wiener filter is extremely useful for the HREM image processing, because the filter can improve the CTF, and thus provide improve images. The image contrast can partially be reversed and that in the high frequency region can be enhanced by the Wiener filter. A practical method for the Wiener filter is explained by using a HREM image of multiply twinned Ag particle. An application is shown with a high temperature superconducting material, and the other techniques are also demonstrated with various images.
- 公益社団法人 日本表面科学会の論文
公益社団法人 日本表面科学会 | 論文
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