Table 3

Reproducibility of selected anthropometric and HA features from participant 18 using manual feature extraction. The inter- and intra-individual results are based on feature extractions performed by six different participants, and three times by one of the six participants, respectively.

Inter-individual variations
Intra-individual variations
Feature μ σ χ μ σ χ
x l 148.3 3.7 5.1 148.8 1.5 2
x 2 216.4 3.7 3.5 212.4 0.9 0.9
x 3 191.1 3.8 4 188.3 4.5 4.8
x 4 12.2 (21.9) 2.2 (1) 35.4* (9.1*) 11.2 (20.8) 0.9 (1.6) 15.6* (15*)
x 5 14.2 (15.2) 1.3 (1.2) 18.9* (15.8*) 13.1 (17.2) 1.7 (0.4) 25.4* (4.1*)
d 13 14.9 (4.5) 1.2 (1.3) 16.7* (59.3*) 16.1 (5.7) 0.3 (2.4) 3.3* (84.3*)
d 14 33.4 (36.1) 1.3 (1.2) 8* (6.4*) 32.2 (38) 1.5 (0.8) 9* (4.3*)

Note: See notes of Table 2.

Features xl to x5 were directly acquired, whereas features d13 and d14 were calculated using features d9, d10, and θ3, which were also extracted by the participants.

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