8 September 2011 Control of optical aberrations with coded apertures
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We report the design of binary-amplitude masks that in conjunction with digital restoration enable mitigation of optical aberrations. Essentially, the design process aims to maintain high modulation-transfer functions by reducing destructive interference of optical-transfer-function phasors. Two optimization techniques are described: so-called contour masks and the use of multiple pixelated masks. In general the resultant modulation-transfer function is 20% of a diffractionlimited imaging system and due to the absence of nulls recorded images can be restored to a high-contrast diffractionlimited image. Example applications are presented for correcting ocular aberrations and for conformal imaging.
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Andrew R. Harvey, Andrew R. Harvey, Gonzalo D. Muyo, Gonzalo D. Muyo, Tom Vettenburg, Tom Vettenburg, "Control of optical aberrations with coded apertures", Proc. SPIE 8165, Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems, 816517 (8 September 2011); doi: 10.1117/12.894975; https://doi.org/10.1117/12.894975

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