DICOM PS3.5 2021e - Data Structures and Encoding

A.8 SMPTE ST 2110-20 Uncompressed Progressive Active Video Transfer Syntax

This Transfer Syntax is used in a DICOM-RTV Metadata Flow in order to describe the accompanying [SMPTE ST 2110-20] Video Flow.

DICOM Attributes

are still applicable with some accommodations below.

As DICOM Photometric Interpretation (0028,0004) values YBR_FULL, YBR_FULL_422, YBR_PARTIAL_420 are based on CCIR 601 (aka BT.601), DICOM-RTV supports only the following:

Table A.8-1 describes the different color resolution.

Table A.8-1. DICOM Attributes for different color resolution

Bit Depth

Samples per Pixel (0028,0002)

Bits Allocated (0028,0100)

Bits Stored (0028,0101)

High Bit (0028,0102)

8

3

8

8

7

10

3

16

10

9

12

3

16

12

11

16

3

16

16

15


The way of encoding pixels shall respect SMPTE ST2110-20.

Note

This encoding is different than the encoding of Pixel Data (7FE0,0010). Example, for YBR_FULL_422 10 bits:

- SMPTE ST 2110-20 Video Flow YCbCr 4:2:2 10 bits

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|   C'B00 (10 bits) |   Y'00 (10 bits)  |   C'R00 (10 bits) |   Y'01 (10 bits)  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

- DICOM Pixel Data (7FE0,0010) YBR_FULL_422 10 bits

 0                   1                   2                   3                   4                   
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|   Y'00 (10 bits)  |0|0|0|0|0|0|    Y'01 (10 bits) |0|0|0|0|0|0|   C'B00 (10 bits) |0|0|0|0|0|0|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

    5                   6
8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   C'R00 (10 bits) |0|0|0|0|0|0|
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

A DICOM Transfer Syntax for SMPTE ST 2110-20 Uncompressed Progressive Active Video shall be identified by a UID value of

DICOM PS3.5 2021e - Data Structures and Encoding