Translation invariant(TI)wavelet de-noising method is an improved method of wavelet thresholding shrinks; it can suppress Pseudo-Gibbs artifacts effectively.
图像的平移不变量小波去噪法是小波收缩阈值去噪法的改进,能够有效抑制小波阈值去噪过程中出现的伪吉布斯现象。
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。
Wavelet de-noising system based on the existing hardware and software platform, designed and implemented for the daily operation of automatic speech synthesis software.
并在小波去噪的基础上,在现有的硬件软件平台上,设计实现了适合日常化运作的语音自动合成软件。
Finally, the parameter setups for wavelet de-noising function are analyzed in the thesis, and the different results with different parameters have been compared each other for the final conclusions.
最后本文对小波消噪的参数设置问题进行了分析,对不同参数选择后的结果进行了比较后得出了结论。
This paper analyzed the characteristic of noise in hyperspectral data deeply, and puts forward a de-noising method based on stationary discrete wavelet transform (SDWT).
文章深入分析了高光谱遥感数据中噪声的特点,提出了一种基于平稳小波变换的改进小波滤噪算法。
Especially to threshold de-noising, a method based on orthogonal wavelet analysis and self-adaptive learning algorithm was proposed here.
特别是对阈值去噪方法,提出了一种基于正交小波变换和自适应学习算法的噪声抑制方法。
Finally, it gave an image de-noising algorithm of coherence enhancing diffusion, which used wavelet coefficients to estimate the image edge according to the wavelets time-frequent analysis function.
针对相干增强扩散计算扩散矩阵较慢的缺点,提出了一种用小波系数估计图像边缘方向的相干增强扩散图像降噪算法。
The experiments show that compared with traditional method which using wavelet for image de-noising, the method based on FPGA has a great improvement in speed.
实验结果表明,以FP - GA来实现基于小波变换的图像去噪方法与传统方法相比,在速度方面得到了很大的提高。
Probed into the two factors of the signal de-noising effect basing on the wavelet transform basing on the analysis of the theory and methods of the wavelet transform: wavelet function and threshold.
在分析小波变换消噪原理和方法的基础上,研究了影响小波变换消噪效果的两个主要因素:小波基函数和阀值。
The experiment results show the de-noising effect of proposed method is better than those of the orthogonal wavelet transform and the common biorthogonal wavelet transform.
实验证明该方法的去噪效果明显优于正交小波方法和普通双正交小波变换的去噪效果。
In order to on-line process engine cylinder head vibration signals of mobile equipment, a de-noising method with gradual changing threshold based on lifting wavelet package transform was proposed.
为了实现移动装备发动机缸盖振动信号的在线处理,提出一种基于提升小波包变换的渐变式阈值降噪方法。
Therefore based on the median filter and the threshold de-noising of wavelet, the wavelet domain median filter was formed, and it was applied to the gyro's signal processing.
为此将中值滤波与小波阈值去噪相结合构造了小波域中值滤波器,并应用于陀螺数据处理中。
Establishment a standard of wavelet analysis by analysis standard deviation of every sub-signal, handles to provide to according to the de-noising of the fetal heart rate signal.
通过分析各分信号的标准差,确立了小波分析标准,为胎儿心率信号的消噪处理提供参照。
This paper mainly points out how to analyze and get rid of the random noise of seismic data by using the wavelet transform and de-noising method by threshold filter in wavelet domain.
本文主要是使用离散二进小波变换,采用小波域阈值的去噪方法对地震信号中随机噪声进行分析和处理。
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 multi-resolution analysis method was used to detect de-noising disturbance signal, character values of the transient voltage disturbance signal were extracted more precisely.
利用小波多分辨率分析方法对去噪后的扰动信号进行检测,更精确地提取出了暂态电压扰动信号的特征值。
Finally, wavelet threshold de-noising method was used to analyze the experimental signal of the two systems. The results showed this method can make some de-noising effect.
最后,运用小波阈值去噪法对两个系统的实验信号进行了分析,结果表明该方法对提高信噪比,抑制噪声具有一定的作用。
Wavelet soft-threshold de-noising method was applied to preprocess the noisy signal, and the noise interference in disturbance detection was reduced to a great extent.
采用小波软阈值去噪方法对信号噪声进行预处理,很大程度地减小了噪声对扰动检测的干扰。
This paper focuses on the research of the de-noising of the passive sonar based on the wavelet.
基于对反潜巡逻机布放被动声纳浮标阵的研究,对方形阵的布放建立了模型。
Some research is processed as follow:In the area of video de-noising, we did our research on various intra-frame de-noising methods on spatial domain, frequency domain and wavelet domain.
在视频降噪方面,从帧内与帧间两个角度对视频降噪方法进行了研究。
To present a arithmetic based on Wavelet Transform and Convolution Morphology for images de-noising.
提出的卷积形态变换是一种新的形态变换形式,具有线性卷积的结构和形态变换的性质。
Threshold de-noising based on wavelet transform which is proposed to determine the decomposition order adaptively is an efficient method to reduce the white noise in the digital signal.
在对带白噪声信号的小波变换特性分析的基础上,基于自相关函数的白噪声检验方法,提出了一种确定小波分解层数的自适应算法。
Threshold de-noising based on wavelet transform which is proposed to determine the decomposition order adaptively is an efficient method to reduce the white noise in the digital signal.
在对带白噪声信号的小波变换特性分析的基础上,基于自相关函数的白噪声检验方法,提出了一种确定小波分解层数的自适应算法。
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