Radiant energy – Inspection of solids or liquids by charged particles
Patent
1990-12-26
1992-04-21
Anderson, Bruce C.
Radiant energy
Inspection of solids or liquids by charged particles
250307, H01J 3700
Patent
active
051071134
ABSTRACT:
A computer based image correction system for Scanning Tunneling Microscopes (STMs) caused by the non-linear, time-dependent behavior of piezoelectric transducers used in STMs to acquire the image. The correction process operates on a digitized stored STM image. A subset of the stored image scan lines are selected for processing. Each scan line is shifted and stretched according to the values of selected parameters. Adjacent scan lines are shifted and stretched in the direction the scan line was acquired. Adjacent scan lines are compared pixel by pixel and the differences are determined. The user is presented with a representation of the differences. The selected parameter values are varied until the differences between adjacent scan lines can best be minimized. The parameter values that best minimized the differences are then applied using the above process to the whole image. The result is an image with the distortions introduced by the piezoelectric transducers removed.
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Anderson Bruce C.
Bell Communications Research Inc.
Suchyta Leonard Charles
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