Modern Standards and Practices
In modern digital imaging systems and high-definition televisions, especially those that comply with SMPTE standards and practices, only square pixels are used for broadcast and display. However, some formats (ex., HDV, DVCPRO HD) use non-square pixels internally for image storage, as a way to reduce the amount of data that must be processed, thus limiting the necessary transfer rates and maintaining compatibility with existing interfaces.
Read more about this topic: Pixel Aspect Ratio
Famous quotes containing the words modern, standards and/or practices:
“In an age robbed of religious symbols, going to the shops replaces going to the church.... We have a free choice, but at a price. We can win experience, but never achieve innocence. Marx knew that the epic activities of the modern world involve not lance and sword but dry goods.”
—Stephen Bayley (b. 1951)
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“Money made through dishonest practices will not last long.”
—Chinese proverb.