Research Article

Driving Posture Recognition by Joint Application of Motion History Image and Pyramid Histogram of Oriented Gradients

Figure 5

A schematic illustration of PHOG. At each resolution level, PHOG consists of a histogram of orientation gradients over each image subregion.
719413.fig.005a
(a)
719413.fig.005b
(b)
719413.fig.005c
(c)