Three dimensional reconstruction of conventional stereo optic disc image.
Conf Proc IEEE Eng Med Biol Soc
; 2004: 1229-32, 2004.
Article
en En
| MEDLINE
| ID: mdl-17271910
Stereo disc photograph was analyzed and reconstructed as 3 dimensional contour image to evaluate the status of the optic nerve head for the early detection of glaucoma and the evaluation of the efficacy of treatment. Stepwise preprocessing was introduced to detect the edge of the optic nerve head and retinal vessels and reduce noises. Paired images were registered by power cepstrum method and zero-mean normalized cross-correlation. After Gaussian blurring, median filter application and disparity pair searching, depth information in the 3 dimensionally reconstructed image was calculated by the simple triangulation formula. Calculated depth maps were smoothed through cubic B-spline interpolation and retinal vessels were visualized more clearly by adding reference image. Resulted 3 dimensional contour image showed optic cups, retinal vessels and the notching of the neural rim of the optic disc clearly and intuitively, helping physicians in understanding and interpreting the stereo disc photograph.
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Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Screening_studies
Idioma:
En
Revista:
Conf Proc IEEE Eng Med Biol Soc
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Corea del Sur
Pais de publicación:
Estados Unidos