Where ( ) and ( ) refer to the magnitude and cross product, respectively. Consider that , , and are the 3D coordinates not the 2D indices of the unit triangle points on the image. U..4 Method Code Sequence If Method Code Sequence (00gg,0012) is (DCM, is used then all xxx1, “Spherical projection”) coordinates in the (00gg,001) are expected to lie on a sphere with a diameter that is equal to Ophthalmic Axial Length (0022,1019). The use of this model for representing the 3D retina enables the calculation of the shortest distance between two points using great circles as per section U..
Where ( ) and ( ) refer to the magnitude and cross product, respectively. Consider that , , and are the 3D coordinates not the 2D indices of the unit triangle points on the image. U..4 Method Code Sequence If Method Code Sequence (00gg,0012) is (DCM, xxx1, “Spherical projection”) is used then all coordinates in the (00gg,001) are expected to lie on a sphere with a diameter that is equal to Ophthalmic Axial Length (0022,1019). The use of this model for representing the 3D retina enables the calculation of the shortest distance between two points using great circles as per section U..