Table 2.

Statistical parameters associated with differences D_i.

Joints	Proposed vs. Marker		Algorithm 1 vs. Marker		Algorithm 2 vs. Marker
	μ	σ	μ	σ	μ	σ
head	2.3339	1.1426	5.8878	3.0238	5.5202	2.8346
shoulder	4.4154	2.1392	5.3514	2.4382	7.4386	4.8854
elbow	4.0166	1.9917	5.4609	2.0548	8.1691	4.4949
ankle	3.0386	2.9961	5.2701	3.8576	12.2962	13.1106
knee	3.5132	1.7997	7.9368	5.706	9.9547	8.1032
hip	7.2508	3.7007	11.0742	6.3248	10.0549	5.2083