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Description: 小波阈值去噪，比较了软阈值，硬阈值及当今各种阈值计算方法和阈值函数处理方法的性能，通过信噪比及均方差的比较，得出各种的算法的优劣。
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Size: 3278 |
Author: 李冰 |
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Description: 几种经典的图像平滑去噪算法程序，其中包括小波软阈值和硬阈值处理。还附送三个图像质量评价程序-several classic image denoising smoothing algorithm procedures, which include thresholding wavelet soft and hard threshold processing. Also attached three image quality evaluation procedures
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Size: 4096 |
Author: 王晓甜 |
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Description: 小波去噪,利用小波系数在相邻尺度上的相关性关系,针对小波系数估计中硬阈值方法和软阈值方法的缺点,
通过对双重量收缩函数得到的阈值乘以一个合适系数进行修定的折衷方法,提出了一种新的小波域局部自适应去噪算法.实验结果表明,该方法既可以去除噪声,又可以较好地保留图像的高频细节特征.-Wavelet denoising using the wavelet coefficients in adjacent scales of the correlation relationship between the estimation of wavelet coefficients for the hard thresholding and soft thresholding shortcomings, through the contraction of the double weight of the threshold function has been multiplied by a suitable coefficient revised compromise, proposed a new wavelet-domain partially adaptive denoising algorithm. The experimental results show that the method can remove noise, also can be used to retain the details of the characteristics of high-frequency images.
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Size: 3072 |
Author: weiwei |
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Description: 根据图像小波分解的特点和小波分解后高频小波系数的统计特性,构造了一种新阈值函数的去噪算法。
与传统的硬阈值、软阈值函数相比,新阈值函数考虑了图像能量分布的特点,对于每一小波系数乘以一个与自身大小相
关的降噪因子,并且新阈值函数简单易于计算,具有较强的自适应性-According to the characteristics of image wavelet decomposition and wavelet decomposition after the high-frequency statistical characteristics of wavelet coefficients, construct a new threshold function of the denoising algorithm. With the traditional hard threshold and soft threshold function, the new threshold function takes into account the characteristics of the image energy distribution, for each wavelet coefficient multiplied by a size associated with self-noise factor, and the new threshold function simple easy calculation, has a strong self-adaptability
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Size: 276480 |
Author: wang |
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Description: 小波阈值去噪，比较了软阈值，硬阈值及当今各种阈值计算方法和阈值函数处理方法的性能，通过信噪比及均方差的比较，得出各种的算法的优劣。-Wavelet threshold denoising compared soft threshold and hard threshold and the current method of calculating the various thresholds and thresholds approach the performance of function, through the signal to noise ratio and mean square deviation of the comparison, the various algorithms advantages and disadvantages.
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Size: 3072 |
Author: 李冰 |
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Description: 小波软阈值去噪，具有较高的SNR,是一种自适应阈值算法-Wavelet soft-threshold de-noising with high SNR, is an adaptive threshold algorithm
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Size: 33792 |
Author: faye |
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Description: 基于图像小波分解的特点和小波分解后高频小波系数的统计特性 构造了一种新阈值函数的去噪算法
摘 要
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介绍了新阈值函数的原理 推导了算法公式 该阈值函数连续 可导 实验结
对比传统的硬阈值 软阈值去噪算法
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利用新阈值函数进行图像去噪 能够有效地抑制图像噪声及马赛克效应
果表明
。
, ,-Accordingtoanalysisofthepropertiesofwavelettransformandstatisticalcharacteristicsofwaveletcoeffi-
Abstract:
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thispaperproposesanovelwaveletthresholdmethod.Comparingwithconventionalsoftandhardthresholdfunc-
cient
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tion thebasicprincipleofthisnewthresholdfunctionisintroduced andthealgorithmsarededuced.Thisnewthresh-
oldfunctioniscontinualanddifferentiable.Experimentalresultsshowthatthedenoisingalgorithmcanmitigatethemo-
saicappearanceeffectively.
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Size: 57344 |
Author: zy |
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Description: 软阈值去噪程序。噪声为高斯白噪声，采用软阈值去噪算法可保证信号的能量。-noise
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Size: 1024 |
Author: 王秀菲 |
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Description: 小波变换应用，小波软阈值及硬阈值去噪算法及对此算法的改进算法。-Application of Wavelet Transform, wavelet soft threshold and hard threshold denoising algorithm and improved algorithm for this method.
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Size: 3072 |
Author: zhangmeng |
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Description: 小波去噪算法，包含多种小波去噪去噪，强制去噪、软阈值去噪、硬阈值去噪-Wavelet denoising algorithm that contains a variety of wavelet denoising denoising forced denoising, soft thresholding and hard threshold denoising
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Size: 1024 |
Author: 王国伟 |
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Description: 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 processing based on translation invariant wavelet transform. Integrated navigation system for underwater vehicle using the Doppler-velocity sonar output signal using translation invariant wavelet transform multiresolution analysis method using Daubechies wavelet function, using a semi-soft threshold denoising method to accurately estimate the Doppler sonar frequency shift in the case of low signal-to-noise ratio output signal with noise from the Doppler extract the original signal. Simulation results show that: 4 layer wavelet decomposition algorithm to calculate the amount decreases, effectively eliminate the Doppler noise, thereby improving the accuracy of the underwater integrated navigation system.
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Size: 325632 |
Author: cooldog |
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Description: 基于小波变换的图像去噪算法，分别应用软阈值降噪图像处理与硬阈值降噪图像处理-Noise reduction image processing applications soft threshold and hard threshold denoising image processing image denoising algorithm based on wavelet transform
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Size: 1024 |
Author: fanggang |
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Description: 脑电信号的硬阈值和软阈值去噪算法，是对脑电信号消噪的基本消噪能够成功取得脑电消噪的目的，为脑电信号的特征提取做好充分准备-EEG hard threshold and soft thresholding algorithm is the basic noise cancellation EEG de-noising can successfully achieve the purpose of de-noising EEG, EEG feature extraction is fully prepared
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Size: 4096 |
Author: dingtong |
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Description: 小波软阈值去噪，具有较高的SNR,是一种自适应阈值算法-Wavelet soft thresholding, has a high SNR, an adaptive threshold algorithm
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Size: 240640 |
Author: 梁宇 |
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Description: 小波阈值去噪，含软阈值去噪，硬阈值去噪和改进阈值去噪算法-The wavelet threshold denoising, including soft threshold denoising, hard threshold denoising threshold denoising algorithm and improvement
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Size: 7168 |
Author: 风云 |
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Description: 可以实现基于小波分析的多种阈值去噪功能,包含软阈值去噪，硬阈值去噪等等算法-Can be implemented based on wavelet analysis of various threshold denoising function, contain soft threshold denoising, hard threshold denoising, etc
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Size: 6144 |
Author: j |
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Description: 无偏估计阈值信号处理；固定式阈值阈值信号处理；极大极小值阈值阈值信号处理；软阈值；硬阈值；(Unbiased estimation, threshold signal processing, fixed threshold thresholding, signal processing, minimax thresholding, signal processing, soft thresholding, hard thresholding;)
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Size: 11264 |
Author: Mr right
|
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Description: 小波阈值滤波去噪算法中，使用的软硬阈值函数、改进半软阈值函数及示例(In wavelet threshold filtering denoising algorithm, the soft and hard threshold function, improved semi soft threshold function and examples are used)
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Size: 1024 |
Author: 学术白痴 |
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