Picture Conversion for High-Definition Graphics
Robert A. Pank · SMPTE Journal · 1992
In the high-definition (HD) production environment the use of 1125/60 and 1250/50 formats creates the need for conversion at the HD level, while down and upconversions to the established 525/60 and 625/50 broadcast systems are also required. In the particular case of stills used in graphics systems, their existing resident facilities can be employed to provide high-quality conversions automatically. In this way images may be passed between systems for use in the different HD and broadcast standards. In addition, graphic elements may be successfully sourced from any format to make a composite image. Such techniques have an obvious long-term application as well as helping users to negotiate the current HD standards “minefield.”