...
  • 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 >Study Of The Deformation Characteristics Of Window Security Film By Digital Image Correlation Techniques
【24h】

Study Of The Deformation Characteristics Of Window Security Film By Digital Image Correlation Techniques

机译：利用数字图像相关技术研究窗户安全膜的变形特性

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

This paper presents a speckle-displacement measurement technique based on the digital image correlation to study the notch sensitivity and crack bridging of window security film. It is used to protect existing glazing against hurricanes, blast and terrorist explosions. The window security film is laminated to the interior side of the glass window by means of a special adhesive. When the glass is breaking, the window film keeps all glass fragments together. The proposed sub-pixel registration of the displacement field is achieved using a calculation technique based on the centre of mass localization of the complex spectrum. This approach increases the computational efficiency for displacements smaller than one pixel and performs with high precision when optimal values of the input correlation parameters are used. In order to achieve a high accuracy of the algorithm, optimization of these input image correlation parameters is offered. For larger displacements an iterative procedure which preserves the precision is successfully implemented. The speckle pattern is created by small white dots sprayed on the previously black painted film surface. As a result, white light illumination can be used which significantly simplifies the experiments.
机译：本文提出了一种基于数字图像相关性的斑点位移测量技术，以研究窗户安全膜的缺口敏感性和裂缝桥接。它用于保护现有的玻璃免遭飓风，爆炸和恐怖爆炸的袭击。窗户安全膜通过特殊的粘合剂层压到玻璃窗的内侧。玻璃破裂时，窗膜会将所有玻璃碎片保持在一起。所提出的位移场的子像素配准是使用基于复杂光谱质点中心的计算技术实现的。这种方法提高了小于一个像素的位移的计算效率，并在使用输入相关参数的最佳值时以高精度执行。为了实现算法的高精度，提供了这些输入图像相关参数的优化。对于较大的位移，可以成功实现保留精度的迭代过程。斑点图案是由喷涂在先前涂有黑色涂料的薄膜表面上的小白点形成的。结果，可以使用白光照明，这大大简化了实验。

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