Structure refinement from HREM images using direct difference methods
نویسندگان
چکیده
منابع مشابه
Wiener-filter enhancement of noisy HREM images.
The use of Wiener filters to restore noisy HREM images is discussed, exploiting the fact that the noise spectrum can be rather simply estimated. Conventional Wiener, Cannon, parametric versions of these and a random-phase form are found to be very effective. Quantitative analysis indicates that the signal-to-noise ratio is improved by a factor of 3-7, with better results for larger pictures. Su...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1987
ISSN: 0108-7673
DOI: 10.1107/s0108767387078759