scope:

This standard defines a family of progressive image sample structures of 3840 x 2160 or 7680 x 4320 with an aspect ratio of 16x9, called Ultra High Definition Television (UHDTV), as defined in Table 1. This standard specifies:

• R'G'B' color encoding and digital representation
• Y'C'_BC'_R color encoding and digital representation.

This standard specifies multiple samples, line and frame rate formats for ten-bit and twelve-bit systems. It is not necessary for an implementation to support all formats to be compliant with this standard. However, an implementation must state which of the Systems are supported.

Throughout this standard, references to signals represented by a single primed letter (e.g., R', G' and B') refer to signals to which the transfer characteristics in Section 6.3 have been applied. Such signals are commonly described as being gamma corrected.