计算机与现代化

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#br# 多重自适应提升小波去噪在计算机视频截获中的应用

  

  1. 中国航天科工集团第二研究院706所,北京100854
  • 收稿日期:2016-03-04 出版日期:2016-10-15 发布日期:2016-10-14
  • 作者简介:任凯琦(1991-),男,内蒙古鄂尔多斯人,中国航天科工集团第二研究院706所硕士研究生,研究方向:防电磁信息泄漏; 代合鹏(1981-),男,河南平顶山人,高级工程师,博士,研究方向:防电 磁信息泄漏与高功率电磁脉冲防护。

Application of Multiadaptive Lifting Wavelet Denoising in Computer Videointercepting

  1. Institute 706, Second Academy of China Aerospace Science and Industry Corporation, Beijing 100854, China
  • Received:2016-03-04 Online:2016-10-15 Published:2016-10-14

摘要:

对于噪声干扰严重的计算机视频辐射信号,去噪是准确恢复视频信号的必要条件。基于提升小波变换算法的基本结构,提出多重自适应提升小波去噪算法,在预测、更新、阈值去噪等3个环节加入
自适应因子,分别利用传统小波去噪算法、提升小波去噪算法以及多重自适应提升小波去噪算法对低信噪比的计算机视频辐射信号进行去噪处理,结果表明多重自适应提升小波去噪算法的去噪效果优于
其它去噪算法。

关键词: 计算机视频截获, 去噪, 多重自适应, 提升小波变换, 阈值

Abstract:

For computer video radiation signal of low SNR, denoising is necessary for restoring video signal accurately. Based on the basic structure of lifting wavelet
algorithm, the denoising algorithm of multiadaptive lifting wavelet is proposed. In the operations of predicting, updating, and threshold denoising, the adaptive factors are
added. The algorithm of traditional denoising, lifting wavelet denoising, and multiadaptive lifting wavelet denoising are used to deal with the computer video radiation
signal of low SNR, the results show that the effect of multiadaptive lifting wavelet denoising algorithm is better than others.

Key words: computer videointercepting, denoising, multiadaptive, lifting wavelet transform, threshold

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