Signal processing for sidelobe suppression in optical coherence tomography images.
J Opt Soc Am A Opt Image Sci Vis
; 27(3): 415-21, 2010 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-20208930
ABSTRACT
In an optical coherence tomography system, the sidelobes of the point-spread function (PSF) introduced from the optical source reduce the A-scan imaging resolution and contrast of the images. A gradual iterative signal subtraction method based on the study of a point signal influenced by other points with different distances through the PSF is proposed in this paper. Comparing with the CLEAN algorithm and two typical deconvolution methods, the processed results demonstrate this algorithm can reduce sidelobes effectively with the least runtime. It is also found that it is insensitive to noise while slightly improving the longitudinal resolution, which shows this algorithm is good for improving image quality.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Algoritmos
/
Procesamiento de Señales Asistido por Computador
/
Interpretación de Imagen Asistida por Computador
/
Aumento de la Imagen
/
Artefactos
/
Tomografía de Coherencia Óptica
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
J Opt Soc Am A Opt Image Sci Vis
Asunto de la revista:
OFTALMOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
China