Browsing by Subject "Fourier transformation"
Now showing items 1-3 of 3
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Error diffusion in cell-oriented Fourier-transform computer-generated holograms to compensate for printing constraints
(Taylor & Francis, 1996-06-01)Error-diffused quantization has been applied to the generation of cell-oriented computer-generated Fourier transform holograms, resulting in reduced reconstruction errors. Improvements are demonstrated when applied to the ... -
Two-dimensional complex Fourier-transform via the radon-transform
(Optical Society of America, 1985-11)A hybrid system has been constructed to perform the complex Fourier transform of real two-dimensional data. The system is based on the Radon transform; i.e., operations are performed on one-dimensional projections of the ... -
Two-stage spatial-filtering for diffraction pattern-analysis
(Optical Society of America, 1981-03)The use of optical power spectrum analysis for feature detection and classification is often restricted by the superposition of the aperture spectrum. A spatial frequency filtering technique using a circular aperture and ...