Table 3. Top 10 most statistically significant features that differ between same person (0) and identical twin (1) classes.

Feature	Mean (0)	Mean (1)	T-test p-value	Mann-Whitney p-value
ORB_NOSE_MIS_MATCH	0.0352	0.0720	1.21e-71	2.25e-93
ORB_L_EYE_MIS_MATCH	0.0352	0.0666	1.48e-59	2.99e-72
ORB_R_EYE_MIS_MATCH	0.0366	0.0678	3.84e-57	1.40e-66
SIFT_OVAL_FACE_MIS_MATCH	0.0661	0.1126	1.05e-51	8.47e-53
SURF_OVAL_FACE_MIS_MATCH	0.0361	0.0583	9.32e-45	1.23e-41
SURF_FACE_CURVE_MIS_MATCH	0.0312	0.0490	1.30e-40	4.99e-39
ORB_FACE_CURVE_MIS_MATCH	0.0455	0.0748	4.92e-38	2.06e-43
ORB_L_EYE_MATCH	0.1168	0.0861	5.11e-34	8.10e-23
SIFT_R_EYE_MIS_MATCH	0.0367	0.0553	5.15e-33	1.39e-35
ORB_LIPS_MIS_MATCH	0.0362	0.0564	1.04e-32	6.30e-40