Shape recognition of planar curves is a fundamental problem of pattern recognition. But it has not been well resolved by now.
平面曲线形状识别是最基本的模式识别问题，然而这个问题至今仍然未能很好地解决。
Platgform Toy is to develop versions of different themes on the same basic toy. However, the shape and pattern as well as the theme of the Designer's toys are freely created by designers.
平台玩具就是在同样的玩具素体上赋予不同的主题，而这些主题是由设计师来完成的；
Platgform Toy is to develop versions of different themes on the same basic toy. However, the shape and pattern as well as the theme of the Designer's toys are freely created by designers.
平台玩具就是在同样的玩具素体上赋予不同的主题，而这些主题是由设计师来完成的；
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