降噪

CCD图像在其获取过程中由于噪声引入而给别的处理带来不便，因而对其进行降噪处理是一项至关重要的工作。

It brings inconvenience to the later processing for the introduced noises while in the acquirement of CCD Image , thus image denoise is necessary .

基于ASIP阵列结构的图像降噪电路设计与实现

The Design and Implementation of Circuit for Image Denoise Based on ASIP Array

TVEars耳机的专利技术中有一项是革命性的降噪汽车提示，这项技术不用于任何其他商用耳机。

TV Ears patented technology includes a revolutionary noise reduction car tip , not used in any other commercially available headset .

GPS单历元变形信号小波降噪方法研究

A Method of GPS Single Epoch Deformation Signal De-noising by Wavelet

基于小波包分析的工程图纸降噪及Matlab实现

Engineering Drawings Denoising Based on Wavelet Packets Analysis And Matlab Realization

GPS单历元形变信号的小波降噪

Wavelet de-noising of GPS single epoch deformation signals

SAR图像非平稳性对图像模型和滤波降噪方法的影响

Influence of Nonstationarity on SAR Imagery Models and De-Speckling Filters

基于边缘检测的自适应干涉SAR降噪方法

Edge Detection-based Adaptive Approach for Interferometric SAR Image Noise Reduction

干涉SAR图像的降噪方法分析

Analysis on Noise Reduction Method for Interferometric SAR Image

基于UHF和HF的局部放电降噪方法的研究

Study on a Noise Rejection Method Based on UHF for Partial Discharge Monitoring

这种新的机器学习方法，既利用了PCA降噪的特性，又具有经典SVM泛化能力强、分类快的特性。

This new method has both the obvious de-noising ability from PCA and the generalization from SVM .

本文利用各向异性扩散滤波对MRI图像进行降噪，然后利用平稳小波变换对图像进行增强处理。

In this report , we perform image denoising based on the anisotropic diffusion filtering , then enhancing the image in the wavelet domain .

用多尺度小波分析的方法对ICT投影数据进行过滤降噪，然后重建ICT图象。

Projections of ICT were filtered and their images were reconstructed by multiscale wavelet analy-sis .

其次通过分析聚氨酯（PU）的透声和降噪机理，讨论了PU的声学性能；

Then the acoustic properties were discussed by analyzing the mechanism of minimizing flow noise while maximizing transmission of signal .

基于Morlet小波与最大似然估计方法的降噪技术

De-Noising Technology Based on Morlet Wavelet Transform and Maximum Likelihood Estimation

本文完成了一种基于DSP的自适应LMS维纳滤波器的设计，从而实现了对数字图像进行初步降噪处理。

In this paper we have completed a DSP-based design of adaptive LMS Weiner filter , and realized to decrease noise in digital image processing .

使用AutoSEA软件计算各个子系统间的能量流动，应用等透声量设计原则，找出车辆室内降噪的薄弱点。

Using software Auto SEA to calculate the energy flow between the sub-systems and under the Equal Penetration Sound Degree rule , the weak points of vehicle inner noise control are found out .

并将它们的降噪效果同D4单小波进行了比较。

The results of denoising are compared with D4 wavelet .

证明小波变换降噪是有一个有效的提高NaI能谱分析能力的方法。

It proves that wavelet transform noise reduction is effective to improve Nal spectrum analysis .

Hartley域自适应算法在电话降噪中的应用研究

Hartley-Domain Adaptive Algorithm for Canceling Noises in Phoning

采用方波haar函数作为母函数，构造了一种独特的小波降噪方法。

In noise reduction methods we used a generating function called haar function as a wavelet basis function .

计算结果表明压铸BMC气门室罩在主要频率区间比用铸铝气门室罩声辐射功率低，有降噪作用。

Calculation indicates that the noise from engine valve cover at main frequency range is reduced when using BMC .

基于Wigner-Ville分布和Hilbert变换相结合的降噪解调法及应用研究

Research of the Theory of Noise Reduction and Demodulation Method Based on Wigner-Ville Distribution and Hilbert Transform and it 's Application

滤波降噪有邻域平均、中值和Butterworth低通等滤波方法。

The filter noise reduction method includes neighborhood average method , median method and Butterworth low-pass method .

对于超声图像来说，Speckle噪声是无法避免的，而且其复杂的形成机制、多变的统计特性使得很多经典降噪算法无法发挥作用。

For ultrasound images , the speckle noise is inevitable . Its complex formation mechanism and statistics properties make a lot of classic noise reduction algorithm can not play a role .

结果显示最优搜索的ICA算法运行效率高，信号分离纯度好，对振动信号有高效的降噪作用，并利用小波包分解准确地检测出振动信号中的碰摩信息，其效果优于小波分解法。

Simulation results show that the modified ICA algorithm is effective on denoise of vibra signal , and wavelet packet decomposition may provide richer early rub impact fault information than wavelet decomposition .

主要工作和创新点如下：（1）研究了井下环境煤岩AE信号和干扰信号特征及其适用的信号降噪方法。

The main work and innovation are as follows : ( 1 ) The characteristics of mine AE and interference signals , as well as the suitable noise reduction methods are studied .

借助MATLAB小波分析工具箱，研究了小波分析在对疵点图像进行去噪等图像增强方面的实际应用，并对全局阈值降噪和分层阈值降噪两种方法做了比较。

By means of Wavelet Toolbox in MATLAB , the application of wavelet analysis to image enhancement , especially image de-noising for detecting fabric defects , is studied , and the two kinds of de-noising : global thresholding and level-dependent thresholding are compared .

第三，仿真实现了对实际光缆线路上产生的典型OTDR测试曲线进行降噪和奇异点定位。

The third , This paper take denoise and singularity location test with the typical OTDR curve from the actual cable lines in the tool of Matlab .

并将这种新型声屏障应用于城市高架道路工程中，现场测量表明，其降噪效果在7dB（A）以上。

With the barrier installed on the inner city viaduct , tests show that it could reduce traffic noise by more than 7dB ( A )