【摘要】 提出一种基于深度学习中卷积神经网络的列车关键零部件图像故障视觉检测算法。首先,引入故障区域复合提议网络和一组先验包围盒来生成高质量的故障区域;然后,采用线性非极大值抑制算法来保留最合适的故障区域并去除冗余;最后,结合故障区域复合提议网络,提出一种多尺度故障检测网络来进行故障区域分类和精确检测。本文将提出的算法在多个典型列车故障的数据库中进行实验,结果表明,本算法检测精度高,检测速度为每张图像0.246s,检测性能明显优于现有的最先进的方法,能更好地应用于实际工程中。更多还原

【Abstract】 This paper proposes a visual detection method for fault detection of key components of railway train based on convolutional neural network in deep learning. Firstly, the multi-region proposal network with a set of prior bounding boxes was introduced to achieve high quality fault proposal generation. Then, a linear non-maximum suppression method was applied to retain the most suitable anchor while removing redundant boxes. Finally, a powerful multi-level region-of-interest(RoI) pooling was proposed for fault zone classification and accurate detection. The proposed method was attempted in several typical train faults databases, and the experimental results indicate that the proposed method can achieve high accuracy with 0.246 s per image including all steps, substantially outperforming the state-of-the-art methods. The proposed method can be used for actual fault detection of freight train images.更多还原