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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