Journal ArticleDOI
Correlation with a spatial light modulator having phase and amplitude cross coupling.
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TLDR
An integral constraint is developed that is a necessary condition for optimizing a correlation filter having single parameter coupling between phase and amplitude and the phase-only filter is shown to be a special case.Abstract:
In correlation filtering a spatial light modulator is traditionally modeled as affecting only the phase or only the amplitude of light. Usually, however, a single operating parameter affects both phase and amplitude. An integral constraint is developed that is a necessary condition for optimizing a correlation filter having single parameter coupling between phase and amplitude. The phase-only filter is shown to be a special case.read more
Citations
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Journal ArticleDOI
Performance measures for correlation filters.
TL;DR: It is shown that the POF appears to provide a good compromise between noise tolerance and peak sharpness, with the help of a new family of filters called fractional power filters (FPFs).
Journal ArticleDOI
Tutorial survey of composite filter designs for optical correlators.
TL;DR: A tutorial survey is presented of the many composite filter designs proposed for distortion-invariant optical pattern recognition and remarks are made regarding areas for further investigation.
Journal ArticleDOI
Fundamentals of phase-only liquid crystal on silicon (LCOS) devices
TL;DR: Zhang et al. as mentioned in this paper reviewed the capabilities and applications of phase-only liquid crystal on silicon (LCOS) technology and illustrated the basic functionalities embedded in the complementary metal oxide semiconductor (CMOS) silicon backplane, including two typical addressing schemes.
Optimal realizable filters and the minimum Euclidean distance principle. [for spatial light modulators]
TL;DR: In this paper, the Euclidean distance minimization in the complex plane optimizes a wide class of correlation metrics for filters implemented on realistic devices, including spatial light modulators, additive input noise (white or colored), spatially nonuniform filter modulators and additive correlation detection noise (including signaldependent noise).
Journal ArticleDOI
Understanding diffractive optic design in the scalar domain
TL;DR: In this paper, a general procedure for the design of diffractive optical elements is presented, and scalar diffraction theory is used to apply it to the design three common diffractive elements: a diffractive lens, an array generator and a correlation filter.
References
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Book
Mathematical Methods for Physicists
TL;DR: In this article, the authors present a model for vector analysis based on the Calculus of Variations and the Sturm-Liouville theory, which includes the following: Curved Coordinates, Tensors.
Journal ArticleDOI
Relaxation Method Of Compensation In An Optical Correlator
Richard D. Juday,Brian J. Daiuto +1 more
TL;DR: In this paper, an iterative method is proposed for the sharpening of programmable filters in a 4-f optical correlator, which is also applicable to amplitude modulators and, with appropriate adjustments, to binary modulators as well.
Proceedings ArticleDOI
Optical Correlation With Phase Encoding And Phase Filtering
TL;DR: In this article, the image-encoding optical activity of a deformable-mirror device (DMD) has been investigated by means of numerical simulations in the Fourier plane, which reveal the sensitivity of phase-encoded/phase-filtered systems to noise, in-plane rotation, and magnification.
Proceedings ArticleDOI
Slm Inducd Phase Distortion And Its Effect On Optical Correlation
TL;DR: In this article, a spatial light modulator operating as an amplitude modulating input element in a coherent optical correlator introduces a certain amount of phase shift at each pixel, and the effect of this has on the overall quality of the correlation signal, defined in terms of SNR and correlation peak full-width-half-maxi-mum (FWHM) response.