Blind signal separation from optical imaging recordings with extended spatial decorrelation.
IEEE Trans Biomed Eng
; 47(5): 573-7, 2000 May.
Article
en En
| MEDLINE
| ID: mdl-10851799
ABSTRACT
Optical imaging is the video recording of two-dimensional patterns of changes in light reflectance from cortical tissue evoked by stimulation. We derived a method, extended spatial decorrelation (ESD), that uses second-order statistics in space for separating the intrinsic signals into the stimulus related components and the nonspecific variations. The performance of ESD on model data is compared to independent component analysis algorithms using statistics of fourth and higher order. Robustness against sensor noise is scored. When applied to optical images, ESD separates the stimulus specific signal well from biological noise and artifacts.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Corteza Visual
/
Algoritmos
/
Procesamiento de Señales Asistido por Computador
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
IEEE Trans Biomed Eng
Año:
2000
Tipo del documento:
Article
País de afiliación:
Alemania