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:
“Most modern reproducers of life, even including the camera, really repudiate it. We gulp down evil, choke at good.”
—Wallace Stevens (1879–1955)
“Barbarism is the absence of standards to which appeal can be made.”
—José Ortega Y Gasset (1883–1955)
“To learn a vocation, you also have to learn the frauds it practices and the promises it breaks.”
—Mason Cooley (b. 1927)