Spatial oversampling in imaging sensors: benefits in sensitivity and detection

John T. Caulfield; Jerry A. Wilson; Nibir K. Dhar

doi:10.1117/12.2019328

18 June 2013 Spatial oversampling in imaging sensors: benefits in sensitivity and detection

John T. Caulfield, Jerry A. Wilson, Nibir K. Dhar

Proceedings Volume 8704, Infrared Technology and Applications XXXIX; 87042X (2013) https://doi.org/10.1117/12.2019328
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

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.

Citation Download Citation

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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