In this paper, we propose a novel hierarchical convolutional neural network for traffic object detection, which is defined as Fusion and Multi-level Alignment CNN (namely FMLA-CNN). The method extends a popular two-stage detector by incorporating a remodified feature fusion module and a multi-level alignment (MLA) strategy such that it is capable of efficiently detecting multi-scale objects in autonomous driving scenario. The feature fusion strategy in proposal generation network improves detection accuracy by inserting high-level semantics to the whole pyramidal feature hierarchy. Subsequently the MLA strategy in the second detection stage can exactly reserve spatial locations from corresponding feature layers determined by hierarchical region-of-interest proposals. In the experiments on KITTI benchmark, our FMLA-CNN achieves an impressively better trade-off between accuracy and efficiency compared with other state-of-the-art methods.


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    Title :

    An Efficient Hierarchical Convolutional Neural Network for Traffic Object Detection


    Contributors:
    Bi, Qianqian (author) / Yang, Ming (author) / Wang, Chunxiang (author) / Wang, Bing (author)


    Publication date :

    2018-06-01


    Size :

    3945859 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    AN EFFICIENT HIERARCHICAL CONVOLUTIONAL NEURAL NETWORK FOR TRAFFIC OBJECT DETECTION

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