DICOM PS3.3 2021e - Information Object Definitions
C.8.8.6.4 Source Pixel Planes Characteristics

The Source Pixel Planes Characteristics Sequence (3006,004A) defines a stack of Source Pixel Planes on the originating system from which the Contour data of an ROI was derived. This stack of Source Pixel Planes does not need to correspond to actual Image Storage SOP Instances.

If a receiving system also utilizes a pixel-based representation of Contours, the information in this Sequence may be utilized to define the same pixel grid as the originating system to reduce the magnitude of errors caused by different sampling rates.

If Source Pixel Planes Characteristics Sequence (3006,004A) is present for an ROI in the ROI Contour Sequence (3006,0039) the following apply:

DICOM PS3.3 2021e - Information Object Definitions