三维视觉检测.pdfVIP

哈尔滨工业大学 Harbin Institute of Technology 光学三维测量技术的研究 课程名称： 院 系： 姓 名： 学 号： 指导教师： 哈尔滨工业大学 I 哈尔滨工业大学 摘要 随着计算机技术和光电技术的发展，新的光学三维测量方法不断涌现。主动 三维测量技术中最具代表性的结构光三维测量方法通过向被测物体投射结构光， 并拍摄经被测物体表面调制而发生变形的结构光图像，然后从携带有被测物体表 面三维形貌信息的图像中计算出被测物体的三维形貌数据。其在机器视觉、逆向 工程、工业自动化和实物仿型、文物遗产保护等领域展现了强大的生命力和巨大 的应用潜力。 结构光三维测量技术已在多个领域得到广泛应用。本文重点介绍了三维光栅 测量的基本原理，包括相移法，相位展幵方法，系统标定与坐标转换的原理等。 关键字：三维测量，相移法，坐标转换 I 哈尔滨工业大学 Abstract With the development of computer technology and optical and electronic technologies, the new three-dimensional optical measurement methods are emerging. Structured light measurement method, the most representative of active three-dimensional measurement technique, projects structured light to the target object, and captures structured light image modulated by measured object surface, then calculates the three-dimensional topography data of the measured object from the images carrying three-dimensional morphology information of the object, which shows a strong vitality and great potential for applications in machine vision, reverse engineering, industrial automation and physical profiling, cultural heritage protection and other fields. This paper introduces the basic principles of three-dimensional grating measurement, including the phase shift method, phase unwrapping method, system calibration and coordinate conversion principle, etc. Key word: Three-dimen