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- 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。
- 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。
- 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。
- 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。
- The post-processing can be carried out by adaptive Wiener filtering followed subband hard threshold in contourlet domain. 并在轮廓波域进行子带硬阈值处理之后,使用自适应维纳滤波进行后处理。
- 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。
- 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 .
- wavelet soft threshold denoising 小波软阈值去噪
- To eliminate the noise included in electromyography(EMG),a de-noising method by multi-scale product coefficient hard thresholding was presented. 为了消除肌电信号中的噪声,提出了一种基于相邻尺度积系数的硬阈值滤波方法。
- It is hard to sleep without a cooler in this room. 没有空气调节器,在这间屋里很难入睡。
- 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
- The result of experiment proves a better achievable PSNR than de noising methods by hard thresholding and soft thresholding algorithms and the learning performance are superior to the conventional methods. 实验表明 :此算法比用传统的硬阈值和软阈值方法图像“去噪”有更好的峰值信噪比且具有比传统算法更好的学习特性 .
- 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
- John felt it hard to rig out his family. 约翰感到难以为一家大小置备衣着。