Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Upsampling01:22

Upsampling

236
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
236

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Reamed and unreamed intramedullary nailing for the treatment of open and closed tibial fractures: a subgroup analysis of randomised trials.

International orthopaedics·2009
Same author

Selective COX-2 inhibitor versus nonselective COX-1 and COX-2 inhibitor in the prevention of heterotopic ossification after total hip arthroplasty: a meta-analysis of randomised trials.

International orthopaedics·2009
Same author

[Study on evaluating sex determining region of the Y as an engrafting track of BMSCs transplantation for repairing osteonecrosis of the femoral head of rabbit].

Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery·2009
Same author

Positive association between benign familial infantile convulsions and LGI4.

Brain & development·2009
Same author

Catalytic enantioselective synthesis of chiral phthalides by efficient reductive cyclization of 2-acylarylcarboxylates under aqueous transfer hydrogenation conditions.

Organic letters·2009
Same author

Significance of urinary liver-fatty acid-binding protein in cardiac catheterization in patients with coronary artery disease.

Internal medicine (Tokyo, Japan)·2009

相关实验视频

Updated: Jul 1, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.9K

基于像素处理的全息显示器中的斑点噪声抑制方法.

Su-Juan Liu, Shuai-Ze Kang, Long-Fei Feng

    Applied optics
    |March 4, 2024
    PubMed
    概括

    本研究引入了一种新的像素处理方法,以减少全息显示器中的斑点噪声. 通过优化子计算机生成全息图 (sub-CGHs),该技术显著提高了重建的图像质量.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 数字全息图 (Digital Holography) 是一个数字全息图.
    • 图像处理 图像处理

    背景情况:

    • 斑点噪声是全息显示器中的一个重要工件,降低了图像质量.
    • 现有的减少斑点的方法通常涉及复杂的光学设置或计算开销.

    研究的目的:

    • 提出和验证一个像素处理方法来抑制全息显示器中的斑点噪声.
    • 为了提高重建的全息图像的视觉真实性.

    主要方法:

    • 对象像素在空间上被分为组,每个组被记录为计算机生成的全息图 (sub-CGH).
    • 在子CGH中,每个像素的相位被优化.
    • 在重建过程中,对空间光调节器进行优化子CGHs的顺序加载.

    主要成果:

    • 拟议的方法有效地抑制了全息重建中的斑点噪声.
    • 减少算法错误和相邻图像点的重叠区域有助于抑制噪音.
    • 实验验证证证实了该技术的可行性和有效性.

    结论:

    • 开发的像素处理方法为全息显示器中的斑点噪声减少提供了可行的解决方案.

    更多相关视频

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
    09:04

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

    Published on: January 14, 2020

    9.7K
    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    10.3K

    相关实验视频

    Last Updated: Jul 1, 2025

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    9.9K
    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
    09:04

    Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

    Published on: January 14, 2020

    9.7K
    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    10.3K
  • 这种方法通过优化子CGH生成和处理来提高重建的全息图像的质量.
  • 这些发现为更清晰,更现实的全息成像应用铺平了道路.