Tridimensional Regression for Comparing and Mapping 3D Anatomical Structures

Table 2

Error rates for each transformation.

		Bidimensional regression		Tridimensional regression
		False positive	False negative	False positive	False negative
Euclidean	Observed	59.7%	36.0%	19.3%	12.0%
	Expected	51.9%	33.6%	16.7%	9.0%
Affine	Observed	57.5%	38.7%	17.0%	3.3%
	Expected	49.0%	37.2%	14.9%	7.5%
Projective	Observed	56.8%	35.3%	23.5%	7.3%
	Expected	51.2%	34.5%	18.4%	16.2%