2 March 1989 Coherent Optical Correlation For Defocused Images Recognition
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Proceedings Volume 1027, Image Processing II; (1989) https://doi.org/10.1117/12.950289
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany
Deblurring images affected by severe focus defeat gives often poor results. A coherent optical method, the joint Fourier transform correlation, is suggested for the recognition of defocused images. Basing on the symmetry of the crosscorrelation function between an out-of-focus and the in-focus image, the recognition may be attempted simply correlating the unknown out-of-focus image with a set of reference in-focus images.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paolo Sirotti, Paolo Sirotti, Ennio Tofful, Ennio Tofful, } "Coherent Optical Correlation For Defocused Images Recognition", Proc. SPIE 1027, Image Processing II, (2 March 1989); doi: 10.1117/12.950289; https://doi.org/10.1117/12.950289

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