Fig. 18

Per-frame count of instantaneous and cumulative people with OTS performance in selected videos for Algorithm 1 (A1: red line), Algorithm 2 (A2: dark red line), Algorithm 3 (A3: light green line), Algorithm 4 (A4: dark green line); and Commercial off-the-shelf 1 (C1: light grey line), and Commercial off-the-shelf 2 (C2: dark grey line). The annotation count is shown in (blue line). All algorithms have been executed with the same video inputs (at 30 frames per second). A1–4 are run in System 1 with GPU. C1-2 are run in CPU. For easing the visualization, the cumulative count of A1–2 are not shown (they are several orders of magnitude larger than the rest of the algorithms); and, only one sample per second (instead of 30 samples per second) is shown. Note that the y-axes are limited to 20 (instantaneous) and 150 (cumulative), and that x-axes are limited to 10000 frames