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Intraframe motion ranks of human derived reference frames. Histograms of intraframe motion ranking (1 is best, 0 is worst) of human-derived reference frames for videosobtained from subjects with normal retinas, ACHM, albinism, or RP. Frames below the horizontal dashed lines were rejected by the intraframe motion module (1.94%, 5.35%, 5.33%, and 4.66% for normal, ACHM, albinism, and RP, respectively).
