Presently traditional method of car plate Chinese character feature extraction is based on prior knowledge which is important for the result.

传统的车牌汉字的特征提取方法是在具有先验知识的情况下进行的，先验知识的好坏对结果有着非常重要的影响。

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The waveforms 'amplitude character will be more distinct through accelerations 'feature extraction, and this is propitious to rail deformation detection.

对加速度进行特征提取，可以使得波形的幅度特征更加明显，有利于进行轨道故障的检测。

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License plate location; Character segmentation; Feature extraction; Character recognition; Neural network.

车牌定位；字符分割；特征提取；字符识别；神经网络。

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