EXPERIMENTAL IMAGE-PROCESSING OF SMALL SUPPORTED METALLIC PARTICLES (1-3 NM)

被引：3

作者：

GIORGIO, S ^{[1
]}

NIHOUL, G ^{[1
]}

CHAPON, C ^{[1
]}

HENRY, CR ^{[1
]}

机构：

[1] UNIV TOULON,MAT GRP,GMET,F-83957 LA GARDE,FRANCE

来源：

MICROSCOPY MICROANALYSIS MICROSTRUCTURES | 1992年 / 3卷 / 01期

关键词：

D O I：

10.1051/mmm:019920030106100

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Metallic particles crystallized on MgO cubes have been observed in profile view in HRTEM. The images are processed in order to improve the visibility of the particles morphology and the eventual defects at the interface metal/MgO. Three different filters have been used, all of them working in the Fourier space. A band pass filter keeping all the spatial frequencies close to the (200) reflections improves the contast of the particles against the noise. Bragg filters around the (200) reflections show up the lattice defects. A new filtering by subtraction of the background, improves both the contrast of the particles and the details at the interface.

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页码：61 / 70

页数：10

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