Maximum a posteriori estimator for high-contrast image composition of optical coherence tomography.
Opt Lett
; 41(2): 321-4, 2016 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-26766704
ABSTRACT
A quantitative signal amplitude estimator for optical coherence tomography (OCT) is presented. It is based on a statistical model of OCT signal and noise, using a Bayesian maximum a posteriori (MAP) estimation framework. Multiple OCT images are used for estimation, similar to the widely utilized intensity averaging method. The estimator is less biased especially at low-intensity regions, where intensity averaging approaches the noise power and hence is biased. The estimator is applied to posterior ocular OCT images and provides high-contrast visualization of pathologies. In addition, histogram analysis objectively shows the superior performance of the estimator compared with intensity averaging.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Procesamiento de Imagen Asistido por Computador
/
Tomografía de Coherencia Óptica
/
Relación Señal-Ruido
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Opt Lett
Año:
2016
Tipo del documento:
Article