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Generalization of the Lyot filter and its application to snapshot spectral imaging.
A snapshot multi-spectral imaging technique is described which employs multiple cascaded birefringent interferometers to simultaneously spectrally filter and demultiplex multiple spectral images ontoExpand
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Infrared imaging with a wavefront-coded singlet lens.
We describe the use of wavefront coding for the mitigation of optical aberrations in a thermal imaging system. Diffraction-limited imaging is demonstrated with a simple singlet which enables anExpand
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Phase pupil functions for reduction of defocus and spherical aberrations.
Radially symmetric pupil plane phase retardation functions are derived that extend focal depth and alleviate third-order spherical aberration (SA) effects. The radial symmetry of these functionsExpand
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Passive imaging using mm-waves offers very significant advantages in scientific and military surveillance. However, the relatively long wavelengths mean that for the resolutions that are typicallyExpand
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Birefringent Fourier-transform imaging spectrometer.
Fourier-transform imaging spectrometers offer important advantages over other spectral imaging modalities, such as, a wider free spectral range, higher spectral resolutions and, in low-photon-fluxExpand
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Circularly symmetric phase filters for control of primary third-order aberrations: coma and astigmatism.
A quartic phase retardation function is described that reduces the variation of the intensity of the focal point of incoherent imaging systems suffering from primary third-order aberrations limitedExpand
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Image artifacts in hybrid imaging systems with a cubic phase mask.
We present the first analytical analysis of image artifacts in defocused hybrid imaging systems that employ a cubic phase-modulation function. We show that defocus artifacts have the form of imageExpand
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Single-pulse, Fourier-transform spectrometer having no moving parts.
A Wollaston prism is used in the design of a polarizing Fourier-transform spectrometer with no moving parts. The effective path difference between orthogonally polarized components varies across theExpand
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Fidelity optimization for aberration-tolerant hybrid imaging systems.
Several phase-modulation functions have been reported to decrease the aberration variance of the modulation-transfer-function (MTF) in aberration-tolerant hybrid imaging systems. The choice of thisExpand
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Multi-aperture foveated imaging.
TLDR
We demonstrate foveated imaging using a planar array of identical cameras combined with a prism array and superresolution reconstruction of a mosaicked image with a foveal variation of 5.9:1 and a quadrupling of the field of view. Expand
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