Log-Likelihood Method of Reducing Noise in CRISM Along-Track Oversampled Hyperspectral Images

Christina D. Kreisch,Raymond E. Arvidson,Joseph A. O'Sullivan,Ke Li,D. V. Politte, Justin Finkel,Edward A. Guinness,Nathaniel Stein,Abigail A. Fraeman

Imaging and Applied Optics 2015 (2015), paper CM4E.5（2015）

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摘要

CRISM hyperspectral measurements are modeled accounting for spatial and spectral pointspread functions. Surface hyperspectral image recovery is ill-posed. Penalized maximum likelihood estimates yield reduced noise in each spectrum estimate, allowing identification of subtle spectral absorptions.

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关键词

hyperspectral images,log-likelihood,along-track

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