Noise-cancellation-based nonuniformity correction algorithm for infrared focal-plane arrays.
Appl Opt
; 47(29): 5394-9, 2008 Oct 10.
Article
em En
| MEDLINE
| ID: mdl-18846181
The spatial fixed-pattern noise (FPN) inherently generated in infrared (IR) imaging systems compromises severely the quality of the acquired imagery, even making such images inappropriate for some applications. The FPN refers to the inability of the photodetectors in the focal-plane array to render a uniform output image when a uniform-intensity scene is being imaged. We present a noise-cancellation-based algorithm that compensates for the additive component of the FPN. The proposed method relies on the assumption that a source of noise correlated to the additive FPN is available to the IR camera. An important feature of the algorithm is that all the calculations are reduced to a simple equation, which allows for the bias compensation of the raw imagery. The algorithm performance is tested using real IR image sequences and is compared to some classical methodologies.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Chile
País de publicação:
Estados Unidos