【摘要】 工程记录曲线的数字化对实现这些资源的数字存储、利用以及共享和交流具有非常重要的意义。作者采用图像处理和模式识别的理论与技术,提出一种新方法实现坐标纸绘制曲线的自动提取和数字恢复。这种方法包括基于中轴变换的交叉曲线分离的方法,基于空域-频域信息融合的种子复原和二阶导数的间断曲线的提取方法。该方法的优点是速度快,自动化和智能化程度高。更多还原

【Abstract】 The digitization for engineering record curves is very important for the digital storage, reuse, share and exchange of these curves. The authors propose a new method for automatic detection and data restoration of graph drawing curves with the theory and technology of image processing and pattern recognition. The method includes the intersecting curve separation based on medial axis transformation, the seed restoration based on spatial-frequency information fusion, and the disconnected curve detection based on second order differentiation. The advantages of this method are the fast computation, high automatization and intelligence.更多还原