Multiscale Point Correspondence Using Feature Distribution and Frequency Domain Alignment

Table 2

The average relative error and computation time performance compared to FFT and HMIR method.

	Average relative error (%)				Time (sec)
	Δ𝑥	Δ𝑦	𝜃	𝑠
FMT method	0.9	1.2	4.3	2.7	18.4
HMIR method	4.3	3.9	3.6	2.2	34.7
Proposed method	0.4	0.6	1.4	1.9	21.8