Peer-Reviewed Journal Details
Mandatory Fields
Barrett, HH,Myers, KJ,Devaney, N,Dainty, C
2006
December
Journal Of The Optical Society Of America A-Optics Image Science And Vision
Objective assessment of image quality. IV. Application to adaptive optics
Published
()
Optional Fields
OBSERVER DETECTION PERFORMANCE HOTELLING TRACE CRITERION NOISE COMPANION MODEL VARIABILITY SPECKLES SIGNALS SYSTEMS FILTERS
23
3080
3105
The methodology of objective assessment, which defines image quality in terms of the performance of specific observers on specific tasks of interest, is extended to temporal sequences of images with random point spread functions and applied to adaptive imaging in astronomy. The tasks considered include both detection and estimation, and the observers are the optimal linear discriminant (Hotelling observer) and the optimal linear estimator (Wiener). A general theory of first- and second-order spatiotemporal statistics in adaptive optics is developed. It is shown that the covariance matrix can be rigorously decomposed into three terms representing the effect of measurement noise, random point spread function, and random nature of the astronomical scene. Figures of merit are developed, and computational methods are discussed. (c) 2006 Optical Society of America.
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