Real time computer simulation of electron microscope images with tilted illumination: Grain boundary applications

1991 ◽  
Vol 19 (3) ◽  
pp. 366-378 ◽  
Author(s):  
W. Krakow
IBRO Reports ◽  
2019 ◽  
Vol 6 ◽  
pp. S283
Author(s):  
Jungeun Son ◽  
Jawon Gim ◽  
Sang-Kyu Bahn ◽  
Jinseop Kim ◽  
Jinseop Kim

Author(s):  
W. Krakow

Digital television frame store devices and software packages have made it possible to obtain images directly from electron microscopes, photographic prints and transparencies in real time and obtain the power spectrum (optical diffraction pattern) and filtered image of various electron micrographs. Enhancements have been added to the Fourier analysis program package which include the use of offset filter functions and the computation of high resolution electron microscope images by including the microscope lens aberration phase shifts and illumination conditions. Because of the use of the frame store and a large mainframe computer, it is possible to have several orders of magnitude gain in image computational speed which makes real-time interactive computations possible.


Nature ◽  
1969 ◽  
Vol 224 (5217) ◽  
pp. 364-365 ◽  
Author(s):  
R. BULLOUGH ◽  
D. M. MAHER ◽  
R. C. PERRIN

1971 ◽  
Vol 43 (2) ◽  
pp. 707-715 ◽  
Author(s):  
D. M. Maher ◽  
R. C. Perrin ◽  
R. Bullough

Author(s):  
William Krakow

For real time television image processing of electron microscope images it is inefficient to have image arithmetic performed on a host computer which requires considerable CPU and transfer time overhead. It is usually more efficient to use an analog preprocessor before image display such as the shading correctors used for particle analysis. These techniques can also be applied to digital TV frame stores which have simple arithmetic units as preprocessors to a digital frame store. In this case sampled images are either added, subtracted or divided much as is done in many STEM type instruments at slower scan rates. Alternatively, the digital frame store can have an arithmetic and Boolean algebra processor capability which operates on digitized images in the frame store in real time. Such processors are available commercially and one has been adapted for use on various electron microscopes at the IBM Research Center.


1981 ◽  
Vol 14 (2) ◽  
pp. 79-81 ◽  
Author(s):  
K. M. Crennell ◽  
L. G. Mallinson

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