The primary identification of the seal is invariant moment method with the smallest calculation. The second step, The dubious seal needs to be verified by circle-projection.
首先采用计算量最小的不变矩法对印鉴进行初步识别,对于可疑印鉴采用环投影识别,若还存在可疑则自动进行配准并采用基于差图像的识别。
参考来源 - 银行验印系统中的印鉴自动识别·2,447,543篇论文数据，部分数据来源于NoteExpress
这种臂环也可以纳入一只投影器械，将动态图形用户界面显示在用户的手腕等部位。
The armband also can include a projector able to display a dynamic graphical user interface onto, for example, the user's wrist.
一个安装了投影仪的臂环直接将用户界面投射到了用户的手腕上。
An armband equipped with a projector displays a user interface directly onto the wrist of a user.
一个座椅被包装在投影幕形成的环里面组成了一个旋转平台。
A seat is mounted on a platform which is surrounded by an endless circular projection-tunnel.
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