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- Each man took turns slowly pushing the stone, while continuously observing the fringe pattern. 每人轮流缓慢地推动石头座使其旋转,同时连续地观察条纹图样。
- The accurate center location of fringe pattern is vital to measurement accuracy of interferometric method. 摘要 干涉条纹中心的定位精度对于干涉法的测量精度至关重要。
- The phase unwrapping process of fringe pattern can be achieved without any priori information or manual intervention. 该方法更充分利用条纹图像信息,算法稳健,可以实现完全自动的二维位相展开。
- New Method for Interferogram Fringe Pattern Analysis Based on Fourier Transform Meathod[J]. 引用该论文 王雨雷;吕志伟;王岩;何伟明.
- Phase Indeterminacy in Phase Analysis Methods for Spatial Carrier Fringe Pattern[J]. 引用该论文 钟金刚;张永林;李丰丽;狄红卫.
- First, the fringe pattern with sinusoidal intensity is generated by a computer program and projected onto the object surface by a LCD projector. 首先利用电脑程式产生正弦强度分布的光学条纹图案,以LCD投影机将其投射于待测物表面。
- ATOS flowing optical scanner with the fringe pattern theory is a kind of advanced and non-contacted of equipment in reverse engineering. Atos流动式光学扫描仪基于光栅原理,是逆向工程领域中一种先进的非接触式光学扫描设备。
- The arithmetic includes image preprocess(i.e. noise extraction of image),gray image binarization and fringe pattern sharpening. 算法包括图像的预处理(即图像的噪声提取)、图像的二值化及图像的细化。
- In digital speckle interferometry, inhomogeneous illumination on or reflection from a tested object will lead to inhomogeneous fringe pattern, and even make the fringe missing. 在数字散斑干涉测量中,照明光的不均匀或被测试物反射光的不均匀,会导致条纹图像不均匀,严重时甚至会引起条纹的丢失。
- When Fourier transform is used to demodulate the modulated fringe pattern, the phase of deformation is calculated and furthermore the deformation is measured accurately. 利用傅里叶变换法,解调出了变形场的相位,从而实现了物体变形场的精确测量。
- By using Fourier transform to demodulate the modulated fringe pattern, two phase maps, which include out-of-plane and in-plane displacements, can be obtained. 利用傅里叶变换法,可分别解调得到包含离面和面内位移信息的二幅位相图。
- The optical characteristics of detected optics can be extracted from its fringe in the fringe pattern, and a technique for fringe analysis is of importance in holographic interferometry, speckle pattern interferometry and Moire technique. 摘要条纹图中的条纹反映了被检测物体的信息,条纹分析技术在全息干涉技术,散斑干涉技术、尔技术中起著重要作用。
- The error caused by the variation of environmental light is analyzed and digitally simulated in this paper, and a rectification algorithm to calibrate the grey scale of fringe pattern is introduced. 本文分析并数字模拟了由环境光变化引入的误差,提出一种现场检测环境光强变化并根据检测结果对获取的条纹图进行校正的方法。
- When holographic interferometry is applied to photoelastic testing of experimental stress analysis, a complex stress fringe pattern can be obtained by unpolarized or circularly polarized light. 全息干涉法应用于实验应力分析的光弹性试验时,当用非线偏振光或用园偏振光时,能得到一幅复杂的应力条纹图,它是表征主应力和的等和条纹族和表征主应力差条纹族的组合。
- We propose a novel method to obtain speckle fringe patterns of ESPI from undeformed and deformed speckle patterns. 本文基于变形前和变形后的散斑图,提出一种获得电子散斑干涉条纹图的新颖方法。
- This method has the characteristics that in addition to the sensing interferometer,a second processing interferometer is necessary to extract the required fringe pattern information. 该技术的特点是除了使用传感干涉仪以外,还必须用第二个处理干涉仪来提取所需的条纹图样信息。
- This method has the characteristics that in addition to the sensing interferometer, a second processing interferometer is necessary to extract the required fringe pattern information. 该技术的特点是除了使用传感干涉仪以外,还必须用第二个处理干涉仪来提取所需的条纹图样信息。
- Four images of the projected fringe patterns with phase shift at 90-degree interval for a cycle are taken from the CCD camera. 接著以CCD相机撷取四张投射光学条纹影像,此四张影像在一个周期中的相位移角间距各为90度。
- When excimer laser irradiate phase masks, the periodic fringe patterns are formed in near-field, exposing fiber to it, in core gratings can be induced. 准分子激光照射相位掩模后,在近场形成周期的条纹分布,利用近场光强对光敏光纤进行曝光,可以在纤芯中写人光栅。
- Traditional speckle fringe patterns by electronic speckle pattern interferometry (ESPI) are inherently noisy and of limited visibility, so denoising is the key problem in ESPI. 原始的电子散斑干涉条纹图中含有很强的颗粒性噪声,对比度很差,因此去除噪声是电子散斑干涉测量技术的关键问题。