The human eye possesses 130 million light-sensitive rods and cones that convert light into chemical impulses, which travel at a rate of a billion signals per second to the brain.
Yet for all its complexity and acuity, the human eye is highly unreliable -- especially when it comes to repetitive work, such as counting the number of sesame seeds on a hamburger bun for hours at a time.
Those tasks have instead been handed over to robot and vision systems, which have grown more sophisticated, easier to use and more affordable, reaching a broader range of operations.
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