A Fast Subpixel Registration Algorithm Based on Single-Step DFT Combined with Phase Correlation Constraint in Multimodality Brain Image

Table 3

Comparison results between total time and registration accuracy for different algorithms.

Accuracy	G-S algorithm	Proposed
0.1	0.547	0.157
0.01	0.631	0.291
0.001	2.989	1.489
0.0001	151.560	75.130