Fig. 13

Error vs input frame rate. People counting results with varying input video frame rate videos in terms of mean opportunity error (MOE), mean people error (MPE), and cumulative opportunity error (COE) for Algorithm 1 (red line), Algorithm 2 (dark red line), Algorithm 3 (light green line), and Algorithm 4 (dark green line). Note that the x-axes are in logarithmic scale and that the y-axes are at different scales. We separate COE for detectors (A1–2) and trackers (A3–4) for easing the visualization. The shaded area indicates the standard deviation of the error, and the line the mean error. Results obtained with System 1 with GPU