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Forearm experiment. (a) Photograph of the forearm of volunteer 1. (b) Depth-encoded forearm vascular image of volunteer 1. (c) 3D forearm vascular images of volunteer 1. (d) Photograph of the forearm of volunteer 2. (e) Depth-encoded forearm vascular image of volunteer 2. (f) 3D forearm vascular images of volunteer 2. Red boxes indicate the scanning region.
