汽车工程 ›› 2018, Vol. 40 ›› Issue (6): 726-.doi: 10.19562/j.chinasae.qcgc.2018.06.016

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基于深度神经网络的行人及骑车人联合检测

陈文强,熊辉,李克强,李晓飞,张德兆   

  • 出版日期:2018-06-25 发布日期:2018-06-25

Concurrent Pedestrian and Cyclist Detection Based on Deep Neural Networks

Chen Wenqiang, Xiong Hui, Li Keqiang, Li Xiaofei& Zhang Dezhao   

  • Online:2018-06-25 Published:2018-06-25

摘要: 本文中针对现有检测方法中不能有效区分行人和骑车人两类目标的问题,提出了一种基于深度神经网络的行人和骑车人联合检测方法;而针对道路环境中的行人与骑车人联合检测误检漏检频繁、小尺寸目标检测效果不佳和背景环境复杂多变等问题,设计了难例提取、多层特征融合和多目标候选区域输入等多种深度神经网络改进方案,以实现行人与骑车人的联合检测。在公开的行人与骑车人数据库上进行的试验表明,所提出的方法对行人或骑车人的识别率高,且能有效区分彼此,其有效性得到了验证。

关键词: 行人与骑车人检测, 深度神经网络, 特征融合, 候选区域选择

Abstract: In this paper, aiming at the defects of existing detection method, being unable to effectively distinguish two types of object: pedestrians and cyclists, a concurrent pedestrian and cyclist detection method is proposed based on deep neural network (DNN), while in view of the problems of frequent undetection and false detection in codetection of pedestrian and cyclist in road environment, the poor detection results for smalldimension targets and the complex and changeable background environment, several DNN modification schemes like difficult example extraction, multilayer feature fusion and multitarget candidate region input are devised to realize concurrent pedestrian and cyclist detection. The results of tests on the public database of pedestrian and cyclist show that the method proposed achieves high identification rate of pedestrian and cyclist and can distinguish each other, with its effectiveness validated.

Key words: pedestrian and cyclist detection, deep neural network, feature fusion, candidate region proposal