Total variation approach for adaptive nonuniformity correction in focal-plane arrays

ESTEBAN MAURICIO VERA ROJAS, Pablo Meza, Sergio Torres

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

In this Letter we propose an adaptive scene-based nonuniformity correction method for fixed-pattern noise removal in imaging arrays. It is based on the minimization of the total variation of the estimated irradiance, and the resulting function is optimized by an isotropic total variation approach making use of an alternating minimization strategy. The proposed method provides enhanced results when applied to a diverse set of real IR imagery, accurately estimating the nonunifomity parameters of each detector in the focal-plane array at a fast convergence rate, while also forming fewer ghosting artifacts.

Original languageEnglish
Pages (from-to)172-174
Number of pages3
JournalOptics Letters
Volume36
Issue number2
DOIs
StatePublished - 15 Jan 2011

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