Publication Date:
2014-08-03
Description:
The phase correlation method (PCM) is well known for high-precision matching between images. However, if the signal-to-noise ratio of an image is low, the method is difficult to apply. To solve this problem, we developed an improved PCM that can match images automatically with sub-pixel matching precision. Using this method, a 0.2-nm crystal lattice spacing was clearly revealed after 10 blurred images were processed in a verification experiment; such a lattice could not be recognized or hardly be recognized in each individual image.
Print ISSN:
0022-0744
Electronic ISSN:
1477-9986
Topics:
Electrical Engineering, Measurement and Control Technology
,
Natural Sciences in General
,
Physics