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  ST 2048-1-2011
 
 
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Product Code: ST 2048-1-2011

Description
 
2048 x 1080 and 4096 x 2160 Digital Cinematography Production Image Formats FS/709.   This standard defines a family of progressive sample structures of 2048 × 1080 and 4096 × 2160 images for D-Cinema content  creation as defined in Table 1 and Table 2 in Section 5.   This standard specifies:
   —  R’G’B’ color encoding and digital representation
   —  Y’C’BC’R color encoding and digital representation
   —  R’FSG’FSB’FS color encoding and digital representation

This standard also defines tristimulus values and reference white of Free Scale-Gamut (FS-Gamut), Free Scale-Log (FS-Log) curve and a Color VANC packet. The FS-Log curve has an affinity with the sensitivity of human eye and can specify a much wider dynamic range than the nonlinear curve defined in Recommendation ITU-R BT.709. The Color VANC carries tristimulus values, reference white and parameter values of the FS-Log curve.  An auxiliary component A may optionally accompany R’G’B’, Y’C’BC’R and R’FSG’FSB’FS; these interfaces are denoted R’G’B’A, Y’C’BC’RA and R’FSG’FSB’FSA. The “A” component if present, shall have the same characteristics as the G’, Y’ or G’FS channel.  Sampling structures supported by this standard include, 4:4:4:4, 4:4:4, and 4:2:2.  Note:  FS-Gamut and FS-Log are identifying names of the defined color space and the Log curve in this standard.