This paper presents a novel framework for accurate pedestrian trajectory prediction in intersection corners or near crosswalks. Given prior knowledge of curbside geometry (i.e. angle made by intersecting curbs at the corner point of interest and the coordinates of the corner itself), the presented framework can accurately predict pedestrian trajectories even in new, unseen intersections. This is achieved by learning motion primitives in a common frame, called the curbside coordinate frame. A key insight in developing this common frame is to ensure that trajectories from intersections with different geometries, representing the same behavior, are spatially similar in the common frame. Motion primitives learned in such a common frame, can then be easily generalized to predict in new intersections, with different geometries than the ones trained on. We test our algorithm on real pedestrian trajectory datasets collected at two intersections, with distinctly different curbside and crosswalk geometries. A comparison of our algorithm with [1] demonstrates improved prediction accuracies of pedestrian trajectory prediction in the case of same training and test intersections, and the improvement of accuracy in the most different training and test intersections scenarios. The result also shows additional context, such as information about pedestrian traffic lights, if available, can be easily incorporated in our prediction model for further improvement in prediction accuracy.


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    Title :

    Learning in the Curbside Coordinate Frame for a Transferable Pedestrian Trajectory Prediction Model


    Contributors:


    Publication date :

    2018-11-01


    Size :

    2982394 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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