NEAL GRUNDY / SCIENCE PHOTO LIBRARY NEAL GRUNDY / SCIENCE PHOTO LIBRARY
Iris scanning. Conceptual computer artwork of the scanning of the iris of a human eye. Iris scanning images the iris (unique to each individual), the coloured area surrounding the pupil of an eye. A computer divides the iris scan into areas from which it recognises unique iris features. The data can then be used to identify the individual if the eye has been previously scanned. Binary code (ones and zeros, down right) is used to encode computer data and instructions.
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