Orientation Uncertainty Characteristics of Some Pose Measuring Systems

Figure 6

Histogram of angles parametrizing unit vectors plotted in a log scale, where −inf indicates empty bins. The average unit vector is aligned with the direction associated with (a) eigenvalue from Figure 4(b) (related distribution shown in Figure 5(a)); (b) eigenvalue from Figure 4(b) (related distribution shown in Figure 5(b)).

(a)

(b)