Effective Volumetric Feature Modeling and Coarse Correspondence via Improved 3DSIFT and Spectral Matching

Table 2

The registration error in mm, on landmarks among POPI-data. is the matching error from th to th frame; is the mean error for the whole sequence. We show the result using B-spline fitting without feature as well as the result using B-spline fitting constrained with the correspondence result of I3DSIFT and I3DSIFT-ISM.

Without feature	0.71	0.80	1.42	1.41	1.71	1.21	1.51	1.41	1.13	1.25
With I3DSIFT	0.69	0.69	1.40	1.40	1.16	1.18	1.50	1.30	1.08	1.15
With I3DSIFT-ISM	0.67	0.65	1.35	1.32	1.12	1.17	1.34	1.30	1.07	1.11