Anzeige
Erschienen in:
2008 | OriginalPaper | Buchkapitel
Towards Multi-Directional OCT for Speckle Noise Reduction
verfasst von : Lukas Ramrath, Guillermo Moreno, Heike Mueller, Tim Bonin, Gereon Huettmann, Achim Schweikard
Erschienen in: Medical Image Computing and Computer-Assisted Intervention – MICCAI 2008
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Multi-directional optical coherence tomography (MD-OCT) applies and extends the concept of angular compounding for speckle noise reduction to the area of OCT imaging. OCT images are acquired from a wide range of angles of view. Averaging of the rotated images therefore requires compensation of the parallax which is achieved by simple image registration for image reconstruction. Test measurements of a sample structure in a low and highly scattering environment show that the method improves the signal-to-noise ratio by a factor of 4 and hence reduces speckle noise significantly. Experimental results also show that the proposed averaging increases the performance of common edge-detection algorithms.