A Combination of the Total Variation Filter and a Fourth-Order Filter for Image Registration

Table 2

Summary of RMSE, mean, and MI. The images are rescaled to [].

Image pairs	Method	RMSE ()	Mean ()	IM
Test 1: sliding rectangular	TV	380.0	72	1.1615
		274.1	36	1.1610
	Fourth-order	343.2	26	1.1358
	Proposed	248	24	1.1620
Test 2: circle to ellipse	TV	708	111	0.7040
		607	105	0.7701
	Fourth-order	794	148	0.6815
	Proposed	440	83	0.8164