2 April 2018 Video-processing-based system for automated pedestrian data collection and analysis when crossing the street
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Computer-vision techniques for pedestrian detection and tracking have progressed considerably and become widely used in several applications. However, a quick glance at the literature shows a minimal use of these techniques in pedestrian behavior and safety analysis, which might be due to the technical complexities facing the processing of pedestrian videos. To extract pedestrian trajectories from a video automatically, all road users must be detected and tracked during sequences, which is a challenging task, especially in a congested open-outdoor urban space. A multipedestrian tracker based on an interframe-detection-association process was proposed and evaluated. The tracker results are used to implement an automatic tool for pedestrians data collection when crossing the street based on video processing. The variations in the instantaneous speed allowed the detection of the street crossing phases (approach, waiting, and crossing). These were addressed for the first time in the pedestrian road security analysis to illustrate the causal relationship between pedestrian behaviors in the different phases. A comparison with a manual data collection method, by computing the root mean square error and the Pearson correlation coefficient, confirmed that the procedures proposed have significant potential to automate the data collection process.
© 2018 SPIE and IS&T
Nabila Mansouri, Nabila Mansouri, Eric Watelain, Eric Watelain, Yousra Ben Jemaa, Yousra Ben Jemaa, Cina Motamed, Cina Motamed, } "Video-processing-based system for automated pedestrian data collection and analysis when crossing the street," Journal of Electronic Imaging 27(2), 023016 (2 April 2018). https://doi.org/10.1117/1.JEI.27.2.023016 . Submission: Received: 17 October 2017; Accepted: 5 March 2018
Received: 17 October 2017; Accepted: 5 March 2018; Published: 2 April 2018


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