由于车牌汉字往往存在笔画断裂或粘连、字迹模糊、字形倾斜等问题，导致难以采用常规的方法对其进行识别。
For the reason that it's difficult to recognize license plate Chinese characters through a conventional method because of conjoint or broken strokes, illegible writing and inclined font.
笔画动态特征模型除了包括加速度和倾斜角特征外，还包括笔杆的速度和位移特征及形成的笔画轨迹特征。
A dynamic feature model of strokes contains not only acceleration and tilt Angle, but also velocity, displacement and stroke trace.
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