Table 4.

BITE 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	SIFT feature correspondences	Initial	After SIFT-based affine	After SIFT-based TPS
1	No post-resection US
2	54	2.30 (0.57–5.42)	1.80 (0.39–5.16)	1.66 (0.38–4.07)
3	55	3.78 (2.80–5.09)	1.31 (0.63–2.33)	1.30 (0.38–2.15)
4	26	4.60 (2.96–5.88)	1.26 (0.53–3.00)	1.13 (0.42–2.74)
5	27	4.11 (2.58–5.26)	1.24 (0.59–1.77)	1.24 (0.50–1.70)
6	183	2.26 (1.36–3.10)	1.33 (0.63–2.34)	1.18 (0.59–2.11)
7	58	3.87 (2.60–5.07)	1.39 (0.56–2.31)	0.86 (0.39–1.38)
8	29	2.51 (0.67–3.93)	2.15 (0.60–3.83)	1.12 (0.49–3.08)
9	19	2.21 (1.00–4.59)	2.03 (0.70–3.95)	1.38 (0.44–3.71)
10	45	3.86 (0.98–6.68)	2.68 (0.78–5.65)	2.59 (0.72–3.51)
11	82	2.88 (0.76–8.95)	2.87 (0.74–7.95)	2.52 (0.48–3.23)
12	67	10.53 (7.85–13.06)	3.68 (0.67–8.06)	2.37 (0.14–3.74)
13	93	1.62 (1.33–2.21)	1.04 (0.53–2.76)	1.01 (0.29–2.03)
14	188	2.19 (0.59–3.99)	1.32 (0.27–2.66)	1.04 (0.25–2.40)
Grand means		3.59 (2.00–5.63)	1.85 (0.59–3.98)	1.52 (0.42–2.76)