Adaptive Power Saving Method for Mobile Walking Guidance Device Using Motion Context

Table 3

Motion detection accuracy and tree lookup time against values.

	Standing		Walking		Fast Walking		Ascending Stairs		Descending Stairs
	Accuracy (%)	Time (s)	Accuracy (%)	Time (s)	Accuracy (%)	Time (s)	Accuracy (%)	Time (s)	Accuracy (%)	Time (s)
20	84.33	0.10	74.25	0.09	37.75	0.09	21.74	0.08	29.12	0.09
30	89.21	0.18	80.75	0.16	63.33	0.13	50.58	0.14	50.29	0.17
50	99.50	0.25	87.58	0.23	83.50	0.23	74.39	0.25	87.71	0.27
80	99.89	0.40	92.76	0.37	90.28	0.35	83.26	0.39	91.58	0.38
100	100	0.53	95.12	0.48	92.27	0.46	85.39	0.47	93.06	0.49