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Richard F. Lyon

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Proceedings Article | 10 February 2006

A brief history of 'pixel'

Richard Lyon

Proc. SPIE. 6069, Digital Photography II

KEYWORDS: Optical filters, Patents, Cameras, Sensors, Image processing, Scanners, Image resolution, Image sensors, Televisions, Chemical elements

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The term pixel, for picture element, was first published in two different SPIE Proceedings in 1965, in articles by Fred C. Billingsley of Caltech's Jet Propulsion Laboratory. The alternative pel was published by William F. Schreiber of MIT in the Proceedings of the IEEE in 1967. Both pixel and pel were propagated within the image processing and video coding field for more than a decade before they appeared in textbooks in the late 1970s. Subsequently, pixel has become ubiquitous in the fields of computer graphics, displays, printers, scanners, cameras, and related technologies, with a variety of sometimes conflicting meanings.

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