基于计算机视觉的大型机械装备逆向工程的研究

Research on the Large Mechanical Reverse Engineering Measurement Based on Computer Vision

逆向工程作为一种新的先进制造技术已经广泛应用在机械装备等行业,计算机视觉作为一种非接触式测量方法,应用于逆向工程具有精度高、速度快、不受被测物体环境影响等优点。目前大多数研究人员采用计算机视觉方法,对小型机械产品的逆向工程进行了研究,而对大型机械装备逆向工程的研究比较少。本文从计算机视觉的角度,对大型机械装备逆向工程进行了综述,归纳出了基于计算机视觉的大型机械装备逆向过程中的关键技术,即:大型机械装备图像采集方法选择、图像的特征提取与匹配、及图像拼接等,并对各个关键技术进行了深入分析和讨论,分别给出其解决的有效途径。

Reverse engineering, which is a new advanced manufacturing technology, has been widely used in various industries. The computer vision, which is a non-contact measurement method used in reverse engineering, has the advantage of high accuracy, high speed, and insensitive to the environment variations of the object to be measured. Computer vision based reverse engineering has been extensively studied in both academia and industry, but few people made a research on the large mechanical equipments using the computer vision. In this work, computer vision based large mechanical equipments reverse engineering is reviewed. Three key steps： data acquisition, data processing and modeling of large mechanical equipment are summarized and the existing problems in each step are discussed deeply, followed by some possible promising techniques.