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zy1
- 摘要 该文主要考虑利用图像噪声再生技术来提取图像细节 其思想是利用被滤除的噪声信号进行回收再利用 通过对噪声信号和初步去噪信号进行小波变换 比较它们的小波系数 当噪声信号的小波系数达到一定的阈值时 将噪声信号的小波系数保留叠加至初步去噪信号的小波系数 然后利用传统的软阈值去噪的方法来进行图像的去噪 从而达到既能够去除噪声 又能保留图像细节的目的 实验证明 该方法较传统的方法在去噪和细节保持上有改进-Abstract In this paper, consider using images to
Waveletanalysisusingsofthresholdingfilteringinlect
- 在采集信号时,如果传感器没有前置放大, 则传感器输出的压电信号的信噪比会比较低。本文利用小波域软阈值滤波方法对未采用前置放大而采样得到的 信号进行小波分析,大幅度地提高了信号的信噪比,提取的目标信号位置与理论位置吻合的很好。这表明可以通 过小波分析方法很好地改善热超声信号的信噪比,从而降低对微波致热超声成像采集系统中前置放大器的要求-When human tissue is irradiated by microwave pulses, there is thermo2acoust
sonar2
- 基于平移不变小波变换的多普勒速度声纳输出信号处理.针对水下航行器组合导航系统所使用的多普勒速度声纳输出信号的特点,采用了平移不变小波变换的多分辨率分析的方法,利用Daubechies小波函数,采用了半软阈值去噪的方法,能够在低信噪比的情况下准确地估计多普勒声纳的频移,从含有噪声的多普勒输出信号中提取出原始信号.通过仿真实验表明:采用4层小波分解,算法计算量减小,有效地消除多普勒噪声,从而提高水下组合导航系统的精度. -Doppler speed the sonar output signal p
random-noise
- 基于小波变换的随机噪声降噪的matlab 主要运用的方法有软阈值去噪法和硬阈值去噪法-Based on wavelet transform matlab random noise and noise reduction methods are mainly used soft thresholding method and hard thresholding method
1FISTA
- 半二次优化算法，研究。软阈值公式推导。最早的一篇论文。非常有参考价值。-Half-quadratic optimization algorithms, research. Soft threshold formula derivation. The earliest paper. Very valuable reference.
dual-tree
- 首先将非平稳的故障振动信号进行双树复小波包分解，得 到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量 进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实 现了故障特征信息的提取。-In view of the above situation, a new fault diagnosis method is proposed based on dual-tree complex wa
zonghedenoise
- 振动消噪代码，包括白噪声、有色噪声、粉色噪声的生成；相关系数法消噪、小波软阈值消噪、互相关系数消噪三种方法对比。-Gaussian white noise, Gaussian colored noise and pink noise have been processed to verify the validity of the algorithm. we also compared the proposed method with the correlation coefficient m
wavelet
- 关于小波阈值去噪的相关文章，如何改进硬阈值和软阈值函数有启发。-Related articles about wavelet threshold denoising, how to improve the hard threshold and soft threshold function has inspired.
vb686
- 比较了软阈值，硬阈值及当今各种阈值计算方法,包括主成分分析、因子分析、贝叶斯分析，cordic算法的matlab仿真。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Including principal component analysis, factor analysis, Bayesian analysis, cordic matlab sim
bui_ge45
- 用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述,比较了软阈值，硬阈值及当今各种阈值计算方法,是一种双隐层反向传播神经网络。- Monte Carlo simulation method of calculating the American option price and basic descr iption, Comparison of soft threshold and hard threshold and today various threshold calculation me
dtbeu
- 解耦，恢复原信号，实现了图像的灰度化并进一步用于视频监视控，比较了软阈值，硬阈值及当今各种阈值计算方法。- Decoupling, restore the original signal, Achieve a grayscale image and further control for video surveillance, Comparison of soft threshold and hard threshold and today various threshold calculati
mmxee
- 具有丰富的参数选项,使用高阶累积量对MPSK信号进行调制识别，比较了软阈值，硬阈值及当今各种阈值计算方法。- It has a wealth of parameter options, Using high-order cumulants of MPSK signal modulation recognition, Comparison of soft threshold and hard threshold and today various threshold calculation met
hao_v30
- 比较了软阈值，硬阈值及当今各种阈值计算方法,多元数据分析的主分量分析投影，实现了图像的灰度化并进一步用于视频监视控。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Principal component analysis of multivariate data analysis projection, Achieve a grayscale ima
sangfeng-V5.3
- 这个有中文注释，看得明白，比较了软阈值，硬阈值及当今各种阈值计算方法,基于小波变换的数字水印算法matlab代码。- The Chinese have a comment, understand it, Comparison of soft threshold and hard threshold and today various threshold calculation method, Based on wavelet transform digital watermarking algo
tc521
- 比较了软阈值，硬阈值及当今各种阈值计算方法,毕业设计有用，小波包分析提取振动信号中的特征频率。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Graduation useful Wavelet packet analysis to extract vibration signal characteristic frequency.
6265
- 比较了软阈值，硬阈值及当今各种阈值计算方法,连续相位调制信号(CPM)产生，有信道编码，调制，信道估计等。- Comparison of soft threshold and hard threshold and today vario
sjcav
- 利用最小二乘法进行拟合多元非线性方程，比较了软阈值，硬阈值及当今各种阈值计算方法,用MATLAB实现的压缩传感。- Multivariate least squares fitting method of nonlinear equations, Comparison of soft threshold and hard threshold and today various threshold calculation method, Using MATLAB compressed sensin
mrwbk
- 比较了软阈值，硬阈值及当今各种阈值计算方法,最小均方误差等算法的MSE的计算,基于matlab GUI界面设计。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Minimum mean square error MSE calculation algorithm, Based on matlab GUI interface design.
rmbmn
- music高阶谱分析算法，做视觉测量的上位机代码,比较了软阈值，硬阈值及当今各种阈值计算方法。- music higher order spectral analysis algorithm, Do Vision Measu
vwcgf
- 计算时间和二维直方图,比较了软阈值，硬阈值及当今各种阈值计算方法,可以实现模式识别领域的数据的分类及回归。- Computing time and two-dimensional histogram, Comparison of soft threshold and hard threshold and today various threshold calculation method, You can achieve data classification and regression pa