首页> 外文期刊>Optical engineering >Defocused spatial diversity technology with aperture scanning for aberration detection and image restoration in aberrated imaging systems
【24h】

Defocused spatial diversity technology with aperture scanning for aberration detection and image restoration in aberrated imaging systems

机译:具有孔径扫描的散焦空间分集技术,用于像差成像系统中的像差检测和图像恢复

获取原文
获取原文并翻译 | 示例
           

摘要

The resolution of an optical imaging system is often limited by various phase aberrations. To get the joint estimation of an object and aberrations of an imaging system with perturbations, a defocused spatial diversity technology with aperture scanning was proposed and evaluated. This technology creates spatial diversity images by scanning an aperture in the defocused plane of the aberrated imaging system. Based on these diversity images, the stochastic parallel gradient descent algorithm was used to recover the phase aberration of the imaging system by adaptively optimizing the coefficients of Zernike polynomials. Then the near-diffraction-limited image of the object can be restored using a multiframe Winner-Helstrom filter. Numerical simulations performed with different phase distributions validated the technology. The technology proposed may be widely used in aberrated imaging systems for aberration detection and image restoration.
机译:光学成像系统的分辨率通常受到各种相差的限制。为了获得物体的联合估计以及具有摄动的成像系统的像差,提出并评估了具有光圈扫描的散焦空间分集技术。该技术通过扫描像差成像系统散焦平面上的光圈来创建空间分集图像。基于这些分集图像,使用随机并行梯度下降算法通过自适应优化Zernike多项式的系数来恢复成像系统的相差。然后,可以使用多帧Winner-Helstrom滤镜恢复对象的近衍射极限图像。以不同的相位分布进行的数值模拟验证了该技术。提出的技术可以广泛地用于像差检测和图像恢复的像差成像系统中。

著录项

  • 来源
    《Optical engineering》 |2018年第8期|083108.1-083108.9|共9页
  • 作者单位

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China,University of Chinese Academy of Sciences, College of Material Sciences and Opto-Electronic Technology, Beijing, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China,University of Chinese Academy of Sciences, College of Material Sciences and Opto-Electronic Technology, Beijing, China;

    Chinese Academy of Sciences, Key Laboratory of Optical Engineering, Chengdu, China,Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China,University of Chinese Academy of Sciences, College of Material Sciences and Opto-Electronic Technology, Beijing, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    phase measurement; image restoration; spatial modulation; aberrations; imaging systems;

    机译:相位测量图像恢复;空间调制像差成像系统;

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