本文针对图纸矢量化中的图元识别技术，提出了系统的基于线弧分离和拟合识别方法。
In this paper, a general method for meta-graph recognition is proposed based on curve fitting and separation of line and smooth curve.
本文针对矩形建筑物的轮廓矢量化提取技术，提出了一种新的基于角点识别和定位的矢量化方法。
This paper describes a new vectorization approach based on corners detection and positioning for the vectorization extraction of rectangle building.
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