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Manual registration of TD-OCT video fundus image with SD-OCT fundus image: (A) SD-OCT fundus image; (B) TD-OCT video fundus image with circle scan location (blue); (C) matched scan location with virtual 3.4-mm circle on SD-OCT fundus image; (D) two fundus images, manually registered by rotating, scaling, and translation (green SD-OCT fundus image superimposed on yellow TD-OCT video fundus image), and the matched scan circle (white), imported to the registered image.
