| Tag | (0022,1512) |
|---|---|
| Type | Required (1) |
| Keyword | TransformationMethodCodeSequence |
| Value Multiplicity | 1 |
| Value Representation | Sequence (SQ) |
Method used to map the 2D Pixel Image data in this SOP Instance to the 3D Cartesian coordinates in the Dimensional to Two Three Dimensional Map Sequence (0022,1518).
Only a single Item shall be included in this Sequence.
See Section C.8.17.12.1.1 for further explanation.
If Transformation Method Code Sequence (0022,1512) is (111791, DCM, "Spherical projection") all the coordinates in the Two Dimensional to Three Dimensional Map Data (0022,1531) shall lie on a sphere with a diameter that shall be equal to Ophthalmic Axial Length (0022,1019).
If Transformation Method Code Sequence (0022,1512) is (111792, DCM, "Surface contour mapping") the coordinates in the Two Dimensional to Three Dimensional Map Data (0022,1531) are based upon the contour of the eye, therefore it cannot be assumed to be a spherical surface.