This Recommendation specifies that the measurement techniques for the objective measurement of perceptual image quality of large screen digital imagery (LSDI) applications for theatrical presentation should conform to those parameters defined in Recommendation ITU-R BT.1683, applicable to standard- definition digital broadcasting systems.
ITU-R BT.1721 SPANISH-2005 history
2005ITU-R BT.1721 SPANISH-2005 Objective measurement of perceptual image quality of large screen digital imagery applications for theatrical presentation