Temporal statistical analysis of laser speckle images and its application to retinal blood-flow imaging

Haiying Cheng, Yumei Yan, Timothy Q. Duong

Resultado de la investigación: Articlerevisión exhaustiva

109 Citas (Scopus)

Resumen

Temporal-statistical analysis of laser-speckle image (TS-LSI) preserves the original spatial resolution, in contrast to conventional spatial-statistical analysis (SS-LSI). Concerns have been raised regarding the temporal independency of TS-LSI signals and its insensitivity toward stationary-speckle contamination. Our results from flow phantoms and in vivo rat retinas demonstrated that the TS-LSI signals are temporally statistically independent and TS-LSI minimizes stationary-speckle contamination. The latter is because the stationary speckle is "non-random" and thus non-ergodic where the temporal average of stationary speckle needs not equal its spatial ensemble average. TS-LSI detects blood flow in smaller blood vessels and is less susceptible to stationary-speckle artifacts.

Idioma originalEnglish (US)
Páginas (desde-hasta)10214-10219
Número de páginas6
PublicaciónOptics Express
Volumen16
N.º14
DOI
EstadoPublished - jul. 7 2008
Publicado de forma externa

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Huella

Profundice en los temas de investigación de 'Temporal statistical analysis of laser speckle images and its application to retinal blood-flow imaging'. En conjunto forman una huella única.

Citar esto