Ges. Figure 5 (a) and (b) show the distant-video sample and the sub-image (eye region) extracted from that frame and Fig. 5 (c) and (d) show the classic-still iris image sample. Figure (a) and (c) are for person A, while (b) and (d) are from person B--note quality differences between the distant-video (top) and classic-still images (bottom).Fig. 5. Quality differences between (a)-(b) sub-image ext


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