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- In this paper,in order to improve the contrast of a virus image,the arithmetic of MDL wavelet soft threshold denoising associated with blind deconvolution is used. 本文介绍了应用MDL小波软阈值去噪结合盲目反卷积来实现病毒原图像的恢复,以达到对比度提高的效果。
- wavelet soft threshold denoising 小波软阈值去噪
- The paper makes a comparison study among the traditional soft threshold,hard threshold and several kinds of spacial denoising methods by the performance evaluation criteria of PSNR and smooth index. 并以峰值信噪比和平滑指数等作为评价指标,与传统的软阈值、硬阈值以及几种空域滤波方法进行了比较。
- Denoise using soft threshold is simple and convenient. 采用软阈值除噪,算法简单实用。
- A wavelet threshold denoising algorithm is effective for denoising the white noise in image. 摘要小波阈值去噪算法是去除图像信号中白噪声的有效算法。
- Based on the theory of wavelet analysis combined with wavelet threshold denoising algorithm, an effective method for separating noise is presented. 摘要介绍了以小波分析理论为基础,结合小波阈值去噪算法找到一种有效的噪声分离方法。
- For the nonstationarity and spectrum chaos of the bearing vibration signal, threshold denoising based on wavelet decomposition was put forward. 针对轴承振动的非平稳性特点和频谱成分的混杂性,提出了基于小波的信号自适应阈值降噪法。
- The method of nonlinear wavelet threshold denoising can estimate the useful signal from the noisy so as to improve the resolving power and signal-to-noise ratio. 用非线性小波阈值的方法去除噪声,使有用信号能从噪声中检测出来,提高信号的分辨率、信噪比。
- It overcame the shortcoming of the hard threshold with discontinuous function and solved the problem of the permanent bias in soft threshold function. 该阈值函数不仅克服了硬阈值函数不连续的缺点,并且解决了软阈值函数存在的恒定偏差。
- To avoid the signal distortion aroused by the incorrect selection of threshold, it applies fuzzy theory into wavelet threshold denoising method, which uses two membership functions to construct two fuzzy threshold denoising methods. 为了避免由于阈值选取不当造成信号失真,将模糊理论引入到小波阈值去噪中,利用两个常用隶属函数构造了两种模糊阈值去噪方法。
- The statistical property of Gaussian White noise in the Monoscale Ridgelet domain was analyzed, and a new image threshold denoising algorithm based on monoscale ridgelet transform was proposed. 分析了高斯白噪声在单尺度脊波域中的统计性质,提出了一种新的基于单尺度脊波变换的阈值滤波算法。
- As for the stable stochastic noise component linearly superposed on the median series,it is smoothed by means of the default soft threshold wavelet de-noising. 对线性叠加在中值系列中的平稳随机噪声;用默认软阈值小波消噪平滑中值序列中的随机噪声分量.
- The one dimension wavelet transform was introduced and the method of the hard threshold and the soft threshold that is used in wavelet de noising. Four kinds of rules of assessing threshold are given. 介绍了一维小波变换和用于小波去噪的硬门限和软门限处理方法 ;给出了4种门限估算准则 .
- The WT coefficient disposed by the compromise of the hard and soft threshold method can reform its continuity on the threshold and guarantee the reconstituted single unable to surge, also can make the signal error smallest. 该方法将小波系数经过软硬阈值折衷法处理后,可以改善小波系数在阈值处的连续性,使重构信号不会振荡,又使变换后的重构信号与实际信号误差最小。
- It is shown that better de-noising effect are achieved by using the wavelet package soft threshold method.These methods have a significant foreground in de-noising of passive sonar. 该研究在分析对比的基础上进行小波包软阈值去噪取得了较好的效果,对被动声纳降噪提供了较好的应用前景。
- The application of de noising by soft thresholding on wavelet transform to ultrasonic detection echo is discussed. 研究小波变换软阈值去噪方法在超声检测回波处理中的应用。
- Ringing Artifacts Reduction in Adaptive Wavelet Threshold Denoising 抑制震荡的自适应小波阈值去噪方法
- Wavelet image threshold denoising based on edge detection 一种基于图像边缘检测的小波阈值去噪方法
- THE GOLDEN SECTION METHOD IN WAVELET THRESHOLD DENOISING 小波阈值去噪黄金分割法
- METHOD OF WAVELET THRESHOLD DENOISING BASED ON BAYESIAN ESTIMATION 基于贝叶斯估计的小波阈值图像降噪方法