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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Med Image Anal. 2011 Jun 22;15(5):748–759. doi: 10.1016/j.media.2011.06.005

Figure 1.

Figure 1

(a) Example 3D macular OCT scan (x: horizontal, y: vertical, z:depth direction) without eye motions. (b) Left: example 2D OCT en-face image (also called OCT fundus image) generated by projecting a 3D macular OCT image along z-axis to x-y plane. Middle: horizontal cross-sectional image corresponding to the red-line on the en-face image. Right: vertical cross-sectional image corresponding to the blue-line on the en-face image; significant z-directional eye motions (yellow arrows) can be observed here, which corrupt the spatial integrity of the 3D data. In the ideal motion-free case, this image shall look similar to a rotated version of the middle image.