Location:
Search - wavelet donoho
Search list
Description: 二维小波分解，运用Donoho的软阈值算法，对每层算出不同的门限值筛选小波系数。-2D wavelet decomposition, use the soft Donoho threshold algorithm, right calculated for each different threshold screening wavelet coefficients.
Platform: |
Size: 857 |
Author: zhangyang |
Hits:
Description: 二维小波分解，运用Donoho的软阈值算法，对每层算出不同的门限值筛选小波系数。-2D wavelet decomposition, use the soft Donoho threshold algorithm, right calculated for each different threshold screening wavelet coefficients.
Platform: |
Size: 1024 |
Author: zhangyang |
Hits:
Description: Donoho经典阀值改进法进行小波去噪，matlab环境下编辑源代码程序-Donoho threshold improvement of classical wavelet denoising method, matlab source code editing environment procedures
Platform: |
Size: 10240 |
Author: |
Hits:
Description: WaveLab是小波和相关的时频变换的一个Matlab例程库，由美国斯坦福大学的Donoho维护。如果想学好小波变换，与Mallat所著的书"信号处理的小波导论"相结合，通过这个例程库，你可学到一些重要的东西。-WaveLab is the wavelet and related time-frequency transform a Matlab routine library, by the United States to safeguard Donoho of Stanford University. If you want to learn wavelet transform with Mallat s book written by An Introduction to Wavelet Signal Processing by combining the Treasury through this routine, you can learn some important things.
Platform: |
Size: 3798016 |
Author: leelyq |
Hits:
Description: WaveLab802在图像增强上的应用，基于Donoho个人网站上的小波工具包，实现的小波图像增强-WaveLab802 in the image enhancement application, based on the personal website of Donoho wavelet toolkit, the realization of wavelet image enhancement
Platform: |
Size: 49152 |
Author: 苗晨 |
Hits:
Description: This function removes random, high frequency noise originating from the electrodes.
a) First, we use a simple low-pass filter.
b) Second, we apply Donoho s method by writing the code.
c) Third, we simply apply Matlab s thr function.
It should be noted that the considered mother wavelet is Symmlet8. -This function removes random, high frequency noise originating from the electrodes.
a) First, we use a simple low-pass filter.
b) Second, we apply Donoho s method by writing the code.
c) Third, we simply apply Matlab s thr function.
It should be noted that the considered mother wavelet is Symmlet8.
Platform: |
Size: 1024 |
Author: Lara |
Hits:
Description: 基于小波域变换的Donoho软门限去噪滤波器-Denoising filter based on wavelet domain transform Donoho soft doors
Platform: |
Size: 256000 |
Author: Artemis |
Hits:
Description: The ridgelet transform (Candµ es and Donoho,
1999) was introduced as a sparse expansion for functions on continuous spaces that are smooth away discontinuities along lines. Our construction uses the ¯ finite Radon transform
(FRAT) as a building block. Taking the one-dimensional wavelet transform
on the projections of the FRAT in a special way results in the ¯ finite ridgelet transform (FRIT), which is invertible,non-redundant, and computed via fast algorithms. -The ridgelet transform (Candµ es and Donoho,
1999) was introduced as a sparse expansion for functions on continuous spaces that are smooth away discontinuities along lines. Our construction uses the ¯ finite Radon transform
(FRAT) as a building block. Taking the one-dimensional wavelet transform
on the projections of the FRAT in a special way results in the ¯ finite ridgelet transform (FRIT), which is invertible,non-redundant, and computed via fast algorithms.
Platform: |
Size: 61440 |
Author: ali |
Hits:
Description: 各种方法的去噪程序
den1.m 使用半软阈值方法对图像进行去噪
den1_5_1.m 半软阈值的改进方法 对第一层重构图像进行均值滤波
den1_9.m 半软阈值的改进方法 将线性衰减的函数改为指数的
den1_10.m 半软阈值的改进方法 对第一层的重构图像再次进行小波阈值去噪
den2.m 用软硬阈值函数的改进方法进行去噪
den3.m 用广义阈值函数进行去噪
den4.m 用自适应特征阈值函数进行去噪
wdenoise.m 用Donoho阈值或Birge-Massart策略及软阈值或硬阈值函数进行去噪
meanfilter.m 均值滤波方法进行去噪(对比用)
medfilter.m 中值滤波方法进行去噪(对比用)-Denoising procedures for various methods
Den1.m using semi soft threshold method for image denoising
The improved method of den1_5_1.m semi soft threshold for the first layer of the reconstructed image
The improved method of den1_9.m semi soft threshold will be changed linear to exponential.
The improved method of den1_10.m semi soft threshold for the first layer of the reconstructed image again for wavelet thresholding denoising
Den2.m using the soft and hard threshold function to improve the method of denoising
Den3.m using generalized threshold function for denoising
Den4.m with adaptive feature threshold function for denoising
Wdenoise.m with Donoho threshold or Birge-Massart strategy and soft threshold or hard threshold function for denoising
Meanfilter.m mean filtering method for denoising (contrast)
Medfilter.m median filtering method for denoising (contrast)
Platform: |
Size: 641024 |
Author: 李松 |
Hits:
Description: 比较分析了传统滤波方法对金融数据去噪的缺陷 , 提出采用小波分析对金融时间序列进行去噪 。根 据 Donoho 提出的小波去噪中的非线性阈值理论 , 结合金融时间序列的特点 , 分析了相应去噪参数的选取问题 。 以深圳成份指数数据为例进行实验 , 结果表明了该方法的有效性 -This paper analyzes the shortcomings of traditional filtering methods in denoising financial data, and proposes the denoising of financial time series using wavelet analysis. According to Donoho s theory of nonlinear threshold in wavelet denoising and the characteristics of financial time series, the selection of corresponding denoising parameters is analyzed. Taking Shenzhen component index data as an example, the results show that the method is effective
Platform: |
Size: 9216 |
Author: 李云 |
Hits: