This module is used to specify the subtraction parameters. The number of items depends on the number of Subtractions to be encoded. Typically, in case of AVG_SUB, the number of items is at least the number of ranges of contrast frames to be subtracted from a different mask.
Table FFF.2. 3-5 MASK MODULE Recommendations
|Recommended Viewing Mode||(0028,1090)||Recommended in this scenario, a value of “SUB” is used in this case.|
|Mask Subtraction Sequence||(0028,6100)||Recommended in this scenario. Items can be used to specify: - A range of contrast frames is to be subtracted from a generated mask; - A different set of pixel-shift pairs is to be applied to a range of contrast frames.|