Table 5.

RESECT database: mTREs and range, in mm, of initial alignment between landmarks and after SIFT-Rank-based affine and SIFT-Rank-based thin-plate spline

Patient	Manual landmarks	SIFT feature correspondences	Initial	After SIFT-based affine	After SIFT-based TPS
1	13	34	5.80 (3.62–7.22)	1.64 (0.14–3.71)	1.48 (0.17–3.51)
2	10	16	3.65 (1.71–6.72)	2.63 (0.85–5.14)	2.62 (0.62–4.89)
3	11	30	2.91 (1.53–4.30)	1.19 (0.64–2.50)	1.04 (0.62–1.52)
4	12	43	2.22 (1.25–2.94)	0.92 (0.22–1.50)	0.83 (0.27–1.53)
6	11	24	2.12 (0.75–3.82)	1.97 (0.51–3.73)	1.55 (0.67–2.88)
7	18	46	3.62 (1.19–5.93)	2.59 (0.84–5.11)	2.38 (0.45–4.33)
12	11	39	3.97 (2.58–6.35)	1.21 (0.24–3.78)	1.20 (0.44–3.09)
14	17	204	0.63 (0.17–1.76)	0.53 (0.08–1.21)	0.53 (0.18–1.18)
15	15	146	1.63 (0.62–2.69)	0.79 (0.26–2.42)	0.74 (0.29–2.31)
16	17	24	3.13 (0.82–5.41)	1.97 (0.48–4.25)	1.94 (0.20–3.84)
17	11	26	5.71 (4.25–8.03)	1.97 (0.94–4.72)	1.99 (0.21–4.51)
18	13	81	5.29 (2.94–9.26)	1.71 (0.71–3.36)	1.69 (0.58–3.03)
19	13	28	2.05 (0.43–3.24)	2.46 (0.67–5.19)	2.78 (0.65–5.04)
21	9	120	3.35 (2.34–5.64)	1.23 (0.49–3.57)	1.07 (0.56–3.20)
24	14	32	2.61 (1.96–3.41)	1.32 (0.44–2.63)	1.35 (0.35–2.24)
25	12	73	7.61 (6.40–10.25)	1.51 (0.35–3.87)	1.24 (0.21–3.57)
27	12	47	3.98 (3.09–4.82)	0.48 (0.05–0.96)	0.83 (0.20–0.93)
Grand means			3.55 (2.10–5.40)	1.54 (0.47–3.39)	1.49 (0.39–3.04)