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Figure 11 | EPJ Data Science

Figure 11

From: Probing crowd density through smartphones in city-scale mass gatherings

Figure 11

Calibration regression. Linear regressions of the calibrated crowd densities ρ ˆ Crowd and the crowd densities ρ Crowd obtained from video footage. Results are shown for different kernel radii R. A perfect regression would correspond to the diagonal axis. Additionally, the figure also shows the scatter plot of the calibrated data points for the case of R=55 m.

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