您要查找的是不是：
- 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。
- 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 .
- A kind of infrared image threshold de?noising method based on discrete stationary wavelet transform is given. 提出了一种基于离散平稳小波变换的红外图像去噪方法。
- In this paper,mean threshold is presented on which wavelet packet de noising is studied. 文中提出了平均阈值的概念 ;并在此基础上研究了小波包去噪的效果 .
- Denoise using soft threshold is simple and convenient. 采用软阈值除噪，算法简单实用。
- 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 .
- Then an improved method, namely translation invariant de noising was proposed. 在此基础上 ,探讨了对传统的阈值方法的改进 ,即平移不变小波变换去噪法。
- This paper presented a new method based on nonlinear wavelet transform to image de noising. 提出一种新的非线性小波变换去噪方法 .
- In the end,the statistics of the operational volume of wavelet de noising is made. 最后对小波去噪的运算量进行了统计 .
- 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。
- It has been proved that the wavelet packet de noising is an effective method prior to wavelet de noising. 仿真结果表明 ,基于平均阈值的小波包去噪是一种有效的去噪方法 ,其效果优于小波去噪
- In analytical chemistry,wavelet transform has been mainly utilized for signal smoothing,de noising and compression. 在分析化学领域中,小波分析也逐渐应用于去噪与平滑、数据压缩等方面。
- 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。
- 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 result indicates that the wavelet transform has practical value in the performance of de noising and real time processing. 结果表明 ;小波变换在去噪性能和实时处理方面均具有实用价值 .
- Compared with[1],the proposed algorithm can be realized without the a priori knowledge about source directions and de noising preprocessing. 与文献 [1]不同 ;算法的实现不需要方位估计的先验知识和协方差矩阵的去噪预处理 .
- After making discrete stationary wavelet transform to an infrared image, de noising is done in the high frequency sub bands with better resolution. 对红外图像进行离散平稳小波变换后 ,对分辨率较好的各高频子带直接利用所提出的去噪方法去噪 ;
- To find the best scheme of wavelet de noising,various parameters that influence the performance of wavelet de noising are studied in this paper. 为了找到最佳的小波去噪方案 ;本文对各种影响小波去噪性能的参数作了比较研究 .
- 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。
- Simulation tests are made to verify that the partial features of the original signal can be reserved after de noising via this method. 为了验证该方法可以在去噪的同时有效的保留原信号的特征分量 ,进行了模拟故障试验。
