...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optics and Lasers in Engineering >Precision verification of a simplified three-dimensional DIC method
【24h】

Precision verification of a simplified three-dimensional DIC method

机译：简化的三维DIC方法的精度验证

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The traditional three-dimensional (3D) digital image measurement technique uses at least two images captured from different positions to determine the 3D coordinate of an object. One disadvantage of this method is that the mechanical and optical properties of the image capture devices are not fully identical, and the calibration procedure is quite complicated. This paper introduces a simplified 3D digital image correlation (DIC) method, in which only one image capture device is used. The theoretical measurement error equation is derived and experimentally verified. Experimental results show that distortion correction plays an important role in the improvement of measurement precision. After a radial distortion correction, the measurement precision of the object distance can reach 0.0043%. The optimal camera spacing should be set from 1/50 to 1/30 of the object distance, to obtain a satisfactory precision.
机译：传统的三维（3D）数字图像测量技术使用从不同位置捕获的至少两个图像来确定对象的3D坐标。该方法的一个缺点是图像捕获设备的机械和光学特性不完全相同，并且校准过程非常复杂。本文介绍了一种简化的3D数字图像相关（DIC）方法，其中仅使用一个图像捕获设备。推导了理论测量误差方程并进行了实验验证。实验结果表明，失真校正在提高测量精度中起着重要作用。经过径向畸变校正后，物距的测量精度可以达到0.0043％。最佳相机间距应设置为物距的1/50至1/30，以获得令人满意的精度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号