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- Wavelet threshold de - noising 小波阈值去噪
- 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 .
- wavelet threshold de -noising 小波阈值去噪
- 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。
- 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 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。
- 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 .
- 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 .
- 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。
- The numerical experiments are made between the Wavelet Threshold De-noise(WTD) and the adaptive method based on EMD. 通过数值仿真,比较了提出的算法与小波域阈值去噪的性能。
- Methods:First,the method of wavelet threshold de-noising was applied to de-noise the EEG. 方法:首先采用小波软门限法去除脑电中的噪声,然后使用扩展独立分量分析算法去除脑电信号中的心电干扰。
- 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。
- When the wavelet basis is bior 6.8 and the threshold method is sqwtolog,the effect of denoise quality with wavelet threshold method is the best one. 当小波基为bior 6.;8;sqtwolog阈值规则时;其消噪效果最优
- A multi-scale threshold method in accordance with fixed wavelet threshold, and an improved method on wavelet wiener filter were proposed. 摘要针对固定小波阈值提出了多尺度阈值方法,对小波维纳滤波提出了改进方法。
- In order to improve the alarm accuracy rate in nuclear power station, this paper adopts Wavelet De noising (WD) method based on statistic characteristics and presents a loose parts alarm method. 针对核电站中检测跌落零件误报警率高的问题,本文对带通滤波后的跌落零件冲击信号应用了基于统计特征的小波去噪方法,并给出了去噪后的跌落零件报警方法。
- Wavelet packet is used for noise speech decomposition,which is better than the traditional orthogonal wavelet threshold de-noising method. 采用小波包对含噪语音进行分解,克服了传统的正交小波变换的缺陷。