基于视觉原理的工程图版面分析技术的研究

THE RESEARCH ON LAYOUT ANALYSIS TECHNOLOGY FOR ENGINEERING DRAWING BASED ON VISION PRINCIPLE

工程图版面分析是实现自动读图的前提。本文以人观察图纸的原理为基础 ,给出一种基于理解的 ,结合图形分析与图像分析的工程图版面分析方法。该方法以自适应缩放的网格式图像化的方法对版面进行快速分割 ,并给出一种以图名为主导的检查和自动调整策略确保结果的准确性。实验结果证明 ,该方法对实际应用中的工程图 。

Layout analysis is the foundation of engineering drawing recognition.This paper presented a new interpretation-based approach for automatic layout analysis of engineering drawings,which follows the human vision principle and integrates two means:graphics analysis and image analysis.In this approach,the graphics to image conversion and analysis process based on the self adjusting grids is applied to divide the drawing rapidly;and then the automatic examination and adjustment guided by drawing titles is applied to ensure the accuracy of layout segmentation.Experimental results showed that this method is efficient and accurate for real and especially large scale engineering drawings.