Restauration of Defocussed Images of Glass/Water-Edges and Chromium/Glass-Edges in Scanning Acoustic Microscopy (SAM)
The following experiments will show the effect of linear filter processing on scanning acoustic micrographs controlled by Linfoot image quality criteria. For calculation micrographs of a glass/water-edge (amplitude object) and a chromium-on-glass-edge (phase object) were taken at defocusses of z=0 to z=-95 µm in 5µ steps by a Leitz ELSAM using a 400 MHz lens without V(z) effect. It will be shown that image processing in SAM is successfull and that the results are in agreement with a discussion of Linfoot image quality criteria.
KeywordsChromium Convolution Deconvolution Acoustics
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