Physics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5408..229s&link_type=abstract
Technologies for Synthetic Environments: Hardware-in-the-Loop Testing IX. Edited by Murrer, Robert Lee, Jr. Proceedings of t
Physics
Scientific paper
Array nonuniformity is the dominant factor limiting the temperature resolution of the current generation of emissive dynamic infrared scene projectors. Over the past five years or so numerous papers have been presented associated with the measurement of the array nonuniformities and the design and implementation of efficient nonuniformity correction (NUC) techniques. A considerable amount of progress has been made towards achieving the desired NUC goals. A number of factors, however, limit the achievement of fine temperature resolution within emissive infrared projection systems, improvements still being needed to achieve residual nonuniformity levels low enough to satisfy the demanding requirements of low NETD thermal imaging systems. In particular, the NUC camera has a strong influence on the effectiveness of the projector NUC procedure. In this paper we describe an alternative method for collecting projector NUC data that relies on the use of several integration times and also multiple calibration points for correcting the camera nonuniformities, the method being designed to improve the accuracy of the projector NUC procedure.
Joyce Robert A.
Swierkowski Leszek
Williams Owen M.
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