• 不 限
  • 期刊论文
  • 硕博论文
  • 会议论文
  • 报 纸
  • 英文论文
  2. 您的位置
  3. 首页
  4. 会议论文
  5. Phase Retrieval through Single Defocused Intensity Pattern Based Extended Nijboer-Zernike Theory

Phase Retrieval through Single Defocused Intensity Pattern Based Extended Nijboer-Zernike Theory

来源 :第四届全国信息光学与光子器件学术会议 | 被引量 : 0次 | 上传用户：cxy8933
【摘 要】
：
An algorithm based on the scalar Extended Nijboer-Zernike (ENZ) theory is proposed for phase retrieval through single defocused intensity pattern.This algorithm draws on the generalized inverse matrix
【作 者】
：
Jing Shao Dongmei Ma 
【机 构】
：
Changchun Institute of Optics , Fine Mechanics and Physics , Chinese Academy of Sciences ,Changchun
【出 处】
：
第四届全国信息光学与光子器件学术会议
【发表日期】
：
2012年10期
下载到本地 , 更方便阅读
下载此文 赞助VIP
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
　　An algorithm based on the scalar Extended Nijboer-Zernike (ENZ) theory is proposed for phase retrieval through single defocused intensity pattern.This algorithm draws on the generalized inverse matrix theory,and the Predictor-Correcto method is also used to correct the linearization errors for medium-to-large aberrations.This method does not need the multi defocused-intensity in the focal region,and it could exclude the displacement during the multi-intensity patterns capturing.Some simulation results are present that this algorithm has good convergence against noise.A confirmatory experiment is carried out.and its results verifying this method are also given.
其他文献
基于Fabry-Perot腔的光纤瓦斯传感测量实验研究
研究了基于FabryPerot(FP)腔干涉光纤瓦斯传感系统。利用MEMS技术在硅片上制作含笼形分子A 的聚合物，然后与光纤端面构成FP腔。基于笼形分子A 的聚合物对瓦斯吸收和敏感的特性，通过分析干涉波长峰值的变化，获得浓度与波长的关系。从理论上分析了传感机理和通过瓦斯传感实验评价传感性能，以瓦斯气体样品验证其有效性。测量并对数据分析处理，解调出包含在干涉信号中的信息。实验结果表明：该传感器具
会议
optical fiber sensorCryptophane AFabry-Perot cavityinterference
Application of Thermal Atomic Layer Deposited A1203 in C-Si Solar Cells
Thermal atomic layer deposited Al2 O3 thin films were applied at the front and rear sides of PERC-type C-Si solar cells.At the front side,A12 03/SiNχ as a double-layer antireflection coating reduced t
会议
thermal atomic layer depositionA12 03C-Si solar cell
A Segmentation Method for Uneven Illumination Particle Images
To the question of particle images segmentation with uneven illumination background,a novel method is proposed based on homomorphic filtering,Top-Hat transformation and watershed algorithm in this pap
会议
particle imageuneven illuminationhomomorphic filteringwatershed
Temperature Sensor Based on Polymer Thin Film Optical Waveguide
The application of polymeric thin film planar optical waveguide based on attenuated total reflection (ATR) and thermo-optic effect as temperature sensor is demonstrated in this paper and the factors i
会议
temperature sensorplanar optical waveguideguided modethermo-optic effectpris
一种红外焦平面非均匀性特征分解的校正算法
针对目前传统的红外焦平面自适应场景校正算法适用性的局限，本文创新的提出了一种基于红外焦平面非均匀性特征分解的场景校正算法，分析红外焦平面非性匀性构成因素，把红外焦平面非均匀性分解成盲点、行列非均匀性、梯度非均匀性等特征，然后对各类非均匀性采用不同的处理算法，最后合并完成校正。利用该算法在自主研发的热像仪中验证。实验表明，该算法校正精度高，适用性强，能有效克服了传统场景校正出现＇鬼影＇等图像退化现象
会议
Infrared focal plane arraysnonuniforityimage decompositioncorrection algorith
The Electro-Tunable Localized Modes in Two Dimensiona Nematic-Liquid-Crystal Photonic Crystal with a
Introducing the Finite difference time domain method and perfect match layer absorbing boundary condition,the electro-tunable localized modes in two dimensional nematic-liquid-crystal photonic crystal
会议
photonic crystallocalized modeliquid crystalfinite difference time domain
Tunability Analysis of Fabry-Perot Cavity in Micro Optical Electro Mechanical Systems
In micro optical electro mechanical systems,the air thickness of a Fabry-Perot cavity is about one wavelength.Therefore,the interference series is less and the reflection phases of the reflectors have
会议
micro optical electro mechanical systemsFabry-Perot cavitytenability
便捷式激光远程语音监听装置设计
利用激光输出光照射到带有振源信息的受迫振动玻璃表面，经玻璃表面反射的光携带有振源的信息.反射光由光电二极管采集并转换为电信号，再经功放放大后，直接送喇叭输出，达到了将振源声音还原的目的，实现了对远程语音的监听.同时还设计了基于声卡采集和LabVIEW 软件的信号分析系统.经测试表明，本装置可以较好的对模拟房间内的语音信号进行远程监听，最远监听距离可达50.7m.具有灵敏度高、操作简单、制作成本低廉
会议
laser opticsremote voice detectionLabVIEWsound card
An Approach for Triangle Traffic Sign Detection based on Improved Radon Transform
Aimed at the complexity of the traffic natural scene,this paper put forward a kind of triangle traffic sign detection method in the basis of Radon transform.the process of detection consists of three
会议
triangle traffic signradon transformHSItraffic sign
无线相干光接收机的电域反馈神经网盲自适应均衡
根据动力学驱动反馈神经网络特点，为解决无线相干接收机的电域盲自适应均衡的特定问题，设计了一种结构简单、灵活性强的连续振幅多阈值SIn 激励函数形式，并详细分析了该激励函数的参数选择方法；提出了该问题引点和斥点的新概念，然后从激励函数角度分析了Rnn 电域盲自适应均衡问题的放大因子选择的范围；该激励函数的设计和分析不仅对于无线相干接收机盲自适应均衡问题适用，也可推广至其它相应领域。最后辅以仿真实验验
会议
wireless optical communicationcoherent detectionblind adaptive equalizationre