Influence of Multipole Deflection Field on Electron Beam Defocus;
多极偏转场对电子束散焦的影响分析
This paper introduces a practical method for computer to estimate the defocus blur parameter in cepstrum area.
介绍一种倒谱分析方法,使计算机能较好地识别散焦模糊参数。
One is the defocus blur due to the optical system s defocus phenomenon,and the other is the motion blur due to the relative movement between the objectives and the camera.
在各种图像捕获系统中,有两种形式的图像模糊比较常见:一种是由光学系统散焦造成的散焦模糊;另一种是物体与照相机之间的相对运动造成的运动模糊。
Analysis of transform from self-defocusing to self-focusing of LN crystal based on coupling theory;
LN晶体自散焦到自聚焦转换的耦合理论分析
We have used a cw Argon ion laser (λ=488nm)for the generation of self-trapping,diffraction and self-defocusing from PbS nanoparticles modified by PVP.
用波长为488nm的氩离子激光与聚乙烯吡咯烷酮(PVP)修饰的PbS纳米微粒水溶胶作用,观察到了样品的自陷、衍射和自散焦现象,样品的折射率为负。
We have studied the dynamic propagation of an optical beam from self-defocusing to self-focusing in photovoltaic photorefractive crystals LiNbO 3:Fe in the framework of a two-dimensional band transport model.
基于二维带输运模型 ,研究了LiNbO3:Fe晶体中光束从自散焦向自聚焦动态转换过程 。