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:
“How little do the most wonderful inventions of modern times detain us. They insult nature. Every machine, or particular application, seems a slight outrage against universal laws.”
—Henry David Thoreau (1817–1862)
“As long as our people quote English standards they dwarf their own proportions.”
—Ralph Waldo Emerson (1803–1882)
“To learn a vocation, you also have to learn the frauds it practices and the promises it breaks.”
—Mason Cooley (b. 1927)