Spectral Domain OCT
Fourier Domain OCT

Layer depth positions may be extracted from the OCT 2D and 3D cubes through image segmentation of the visible interfaces. For 2D data this can be used for the extraction of interface depth profiles, thickness profiles and surface roughness profiles along the plane of the scan. For 3D data sets this provides layer interface depth mapping, interface roughness measurements or mapping, and layer thickness maps within the scan region of interest. 3D segmented surface and subsurface interface depth mapping can also be used in targeted windowing for the extraction of structures visible in intensity variations across the OCT cube like underdrawings, texture and writings. These OCT intensity projections are simply derived from the axial maximum or mean intensity within a depth window. The segmentation technique depends on the complexity of the object's layer structure and the data quality, with highly complex structures and low signal interfaces sets becoming more difficult to segment.

Optical coherence tomography (oct)

Analysis Method & Data Processing

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