Optimization of an Accelerometer and Gyroscope-Based Fall Detection Algorithm

Figure 7

Representative curves of sensitivity versus threshold values (1st row) for (a) , (b) , and (c) and corresponding ROC curves (2nd row; (d)–(f)). Minimum distance point, , is shown in each ROC curve with sensitivity (~95%).

(a)

(b)

(c)

(d)

(e)

(f)