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Eye motion trace computed from the image sequence shown in Media 2 (2.4MB, MPEG) , showing vertical (y) component of eye motion before (red) and after optical stabilization alone (blue) and optical stabilization combined with digital registration (green). Inset shows zoomed in trace for the region denoted by the dashed rectangle. Asterisks denote spurious motion measurements during blinks or large amplitude motion (see Appendix for details).
