Sparse Representation of Deformable 3D Organs with Spherical Harmonics and Structured Dictionary

Table 6

Sparsity (𝜇/𝜎) and accuracy evaluation for intermodel experiment with kidneys.

	𝑋 (𝜇/𝜎)	𝑌 (𝜇/𝜎)	𝑍 (𝜇/𝜎)	EOF (%)	Haus (mm)
Ex1 train (SRDS)	34.7/5.5	35.6/5.5	36.4/1.6	0.32	0.69
Ex1 test (SRDS)	35.7/1.3	36.7/0.9	36.7/1.8	2.01	2.08
Ex1 test (OSP)	36.7/2.4	36.0/2.4	35.9/2.6	1.94	1.94
Ex2 train (SRDS)	42.8/4.5	42.8/2.2	43.5/3.7	0.26	0.59
Ex2 test (SRDS)	47.0/3.1	44.5/1.8	46.3/2.4	1.02	1.27
Ex2 test (OSP)	44.0/2.2	41.9/12.1	45.9/2.0	0.95	1.22
Ex3 train (SRDS)	37.1/9.1	43.3/2.2	40.8/1.3	0.25	0.59
Ex3 test (SRDS)	41.4/6.5	45.1/1.7	40.4/1.3	0.90	1.18
Ex3 test (OSP)	41.2/8.4	42.7/9.7	39.3/10.6	0.83	1.16