Efficient Probabilistic and Geometric Anatomical Mapping Using Particle Mesh Approximation on GPUs

Table 4

Time elapsed, in minutes, for registration using deformable mutual information (MI) on the CPU (AMD Phenom II X4 955, 6 GB DDR3 1333) and our proposed approach (P + G) on the GPU (NVIDIA GTX 260, 896 MB) with 1000 iterations of gradient descent.

Subject	0012	0102	0106	0121	0130	0146	0156	0174	0177	0180
MI on CPU	92	63	103	92	101	112	106	99	91	96
P + G on GPU	9	8	8	8	8	7	9	8	7	7