Paper
18 June 2013 Spatial oversampling in imaging sensors: benefits in sensitivity and detection
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Abstract
Infrared Focal Plane Arrays have been developed with reductions in pixel size below the Nyquist limit imposed by the optical systems Point Spread Function (PSF). These smaller sub diffraction limited pixels allows spatial oversampling of the image. We show that oversampling the PSF allows improved fidelity in imaging, resulting in sensitivity improvements due to pixel correlation, reduced false alarm rates, improved detection ranges, and an improved ability to track closely spaced objects.
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John T. Caulfield, Jerry A. Wilson, and Nibir K. Dhar "Spatial oversampling in imaging sensors: benefits in sensitivity and detection", Proc. SPIE 8704, Infrared Technology and Applications XXXIX, 87042X (18 June 2013); https://doi.org/10.1117/12.2019328
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KEYWORDS
Point spread functions

Sensors

Signal to noise ratio

Interference (communication)

Target detection

Imaging systems

Modulation

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