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- wavelet threshold de -noising 小波阈值去噪
- 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。
- 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。
- 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 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。
- 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。
- The experiment based on the new measure shows that the new method can suppress heavy-tailed noise effectively,and it is more robust than classic wavelet threshold. 基卜提出的准则,通过实验比较了小波阈值方法与中值滤波一小波消噪方法的消噪效果,结果表明所提出的方法能更好的消除拖尾噪声,具有较好的鲁棒性。
- This paper illustrates a method to de noise of radar weak signal. 通过建立尺度空间新内积、新范数的方法来构造新型小波变换 ;并且实现了用该系列小波变换对雷达弱信号去噪的目的 .
- This paper discusses some common issues in the applications of transient signal analysis, such as transient signal detection, de noise, data compression and locating. The mother wavelet option method is studied. 讨论了电力系统中常见的暂态信号分析应用 ,如电力暂态信号检测、去噪与数据压缩以及暂态信号定位等 ,对这些应用中小波基的选择原则进行了系统的分析研究。
- By use of wavelet decomposition reconstruction algorithm, the vibration signal is de noised and the signal noise rate is improved, the loss is low. 利用小波分解重构算法 ,对振动测试信号进行去噪处理 ,改善测试信号的信噪比 ,减少信号损失。
- 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。
- 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 .
- 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
- 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 .
- 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。
- 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
- Based on the above, an improved integer wavelet threshold compression algorithm was proposed and realized on ARM9 using EVC. 在此基础上提出了一种改进的整数小波阈值压缩算法,在ARM9上利用EVC予以实现。