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Measuring a detection sensitivity metric for non-shift invariant computational imaging systems (Conference Presentation)

Paper Abstract

In the modern tactical imaging environment, new computational imaging (CI) systems and algorithms are being used to improve speed and accuracy for detection tasks. Therefore, a measurement technique is needed to predict the performance of complex non-shift invariant EO/IR imaging systems, including CI systems. Detection performance of traditional imaging systems can be modeled using current system metrics and measurements such as Modulation Transfer Function (MTF), Signal to Noise (SNR), and instantaneous Field of View (iFOV). In this correspondence, we propose a technique to experimentally measure a detection sensitivity metric for non-traditional CI systems. The detection sensitivity metric predicts the upper bound of linear algorithm performance though evaluation of a matched filter. The experimental results are compared with theoretical expected values though the Night Vision Integrated Performance Model (NV-IPM). Additionally, we demonstrate the experimental results for a variety of imaging systems (IR, visible, and color), target sizes and orientations, as well as SNR values. Our results demonstrate how this detection sensitivity metric can be measured to provide additional insight into the final system performance.

Paper Details

Date Published: 15 May 2018
PDF
Proc. SPIE 10669, Computational Imaging III, 106690V (15 May 2018); doi: 10.1117/12.2307829
Show Author Affiliations
Bradley L. Preece, U.S. Army RDECOM CERDEC NVESD (United States)
David P. Haefner, U.S. Army RDECOM CERDEC NVESD (United States)
George Nehmetallah, The Catholic Univ. of America (United States)


Published in SPIE Proceedings Vol. 10669:
Computational Imaging III
Abhijit Mahalanobis; Amit Ashok; Lei Tian; Jonathan C. Petruccelli, Editor(s)

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