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A real time 3D surface measurement system using projected line patterns.

机译:使用投影线图案的实时3D表面测量系统。

摘要

This thesis is based on a research project to evaluate a quality control system for car component stamping lines. The quality control system measures the abrasion of the stamping tools by measuring the surface of the products. A 3D vision system is developed for the real time online measurement of the product surface. In this thesis, there are three main research themes. First is to produce an industrial application. All the components of this vision system are selected from industrial products and user application software is developed. A rich human machine interface for interaction with the vision system is developed along with a link between the vision system and a control unit which is established for interaction with a production line. The second research theme is to enhance the robustness of the 3D measurement. As an industrial product, this system will be deployed in different factories. It should be robust against environmental uncertainties. For this purpose, a high signal to noise ratio is required with the light pattern being produced by a laser projector. Additionally, multiple height calculation methods and a spatial Kalman filter are proposed for optimal height estimation. The final research theme is to achieve real time 3D measurement. The vision system is expected to be installed on production lines for online quality inspection. A new 3D measurement method is developed. It combines the spatial binary coded method with phase shift methods with a single image needs to be captured.
机译:本论文基于一项研究项目,以评估汽车零部件冲压线的质量控制系统。质量控制系统通过测量产品表面来测量冲压工具的磨损。开发了3D视觉系统,用于实时在线测量产品表面。本文主要研究三个主题。首先是产生工业应用。该视觉系统的所有组件均选自工业产品,并开发了用户应用软件。开发了用于与视觉系统交互的丰富的人机界面,以及视觉系统和控制单元之间的链接,该控制单元是为与生产线交互而建立的。第二个研究主题是增强3D测量的鲁棒性。作为工业产品,此系统将部署在不同的工厂中。它应该对环境不确定性具有鲁棒性。为此,在由激光投影仪产生的光图案中需要高的信噪比。此外,提出了多种高度计算方法和空间卡尔曼滤波器,以实现最佳高度估计。最终的研究主题是实现实时3D测量。视觉系统有望安装在生产线上以进行在线质量检查。开发了一种新的3D测量方法。它结合了空间二进制编码方法和相移方法,需要捕获单个图像。

著录项

  • 作者

    Shen Anqi;

  • 作者单位
  • 年度 2010
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
  • 中图分类

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