摘要：

工程图纸矢量化是计算机辅助设计的一个前提条件，具有很好的研究价值和应用前景。该文归纳和总结了现有的各种工程图纸矢量化算法，在分析这些算法优缺点的基础上，探讨了这一领域中值得进一步研究的问题和可能的发展方向。对于避免和减少误差，提高复杂工程图纸矢量化结果有一定的实际意义。

关键词: 工程图纸, 矢量化, 图像识别

Abstract:

As a precondition of the computer aided design(CAD), the engineering drawing vectorization has high research value and broad applications. This paper discusses the engineering drawing vectorization methods. Based on the study and analysis of the existing problems in vectorization, the future research direction is introduced. There are certain practical signification for avoiding, reducing vectorization errors and improving the vectorization quality of the complicated engineering drawings.

Key words: Engineering drawing, Vectorization, Image recognition