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Description: 论文包括两个方面：离散余弦变换（DCT）的快速算法及滤波器实现结构，于波变换域图像门槛降噪。离散余弦变换是广泛应用于信号处理、图像处理领域的重要工具之一，己经被多个国际标准所接受，如JPEG、MPEG、H．263等。DCT应用到实际系统中的前提是具有能够快速实现的算法，自从1977第一个真正的DCT快速算法出现以来，寻求更快、更规则、更简单的DCT快速算法一直是信号处理领域的一个研究方向。论文针对应用中对DCT长度的-papers include two aspects : discrete cosine transform (DCT) algorithm for the rapid and filter structure, in the wavelet transform domain image noise threshold. Discrete Cosine Transform is widely used in signal processing, image processing area of one of the important tools, has been a number of international standards to be accepted, such as JPEG, MPEG, H. 263, and so on. DCT applied to the actual system is the prerequisite to achieving rapid algorithm Since 1977 the first real fast DCT algorithm since its emergence, seek faster, more rules, DCT more simple fast algorithm signal processing has been an area of research. Application papers against the length of the DCT
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Size: 14245 |
Author: like |
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Description: 论文包括两个方面：离散余弦变换（DCT）的快速算法及滤波器实现结构，于波变换域图像门槛降噪。离散余弦变换是广泛应用于信号处理、图像处理领域的重要工具之一，己经被多个国际标准所接受，如JPEG、MPEG、H．263等。DCT应用到实际系统中的前提是具有能够快速实现的算法，自从1977第一个真正的DCT快速算法出现以来，寻求更快、更规则、更简单的DCT快速算法一直是信号处理领域的一个研究方向。论文针对应用中对DCT长度的-papers include two aspects : discrete cosine transform (DCT) algorithm for the rapid and filter structure, in the wavelet transform domain image noise threshold. Discrete Cosine Transform is widely used in signal processing, image processing area of one of the important tools, has been a number of international standards to be accepted, such as JPEG, MPEG, H. 263, and so on. DCT applied to the actual system is the prerequisite to achieving rapid algorithm Since 1977 the first real fast DCT algorithm since its emergence, seek faster, more rules, DCT more simple fast algorithm signal processing has been an area of research. Application papers against the length of the DCT
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Size: 14336 |
Author: like |
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Description: inds minimum risk soft threshold for noise-free coefficients
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Size: 1024 |
Author: 陈大可 |
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Description: 局部放电试验所采集的信号中往往混有白噪声、周期干扰信号去除。此处采用常用db系列小波中的db6小波进行9尺度的多分辨分解后，根据白噪声能量特性，估算各尺度的阈值大小，采用硬值进行处理，后进行重构。-Partial discharge test of the signal collected is often mixed with white noise, periodic interference signal removal. Here the use of commonly used wavelet db Series DB6 wavelet carried out in the 9-scale multiresolution decomposition, based on the energy characteristics of white noise to estimate the scale threshold size, the use of hard-value deal, after the remodeling.
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Size: 33792 |
Author: rex |
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Description: 小波软阈值去噪的MATLAB代码,输入噪声均值就可得出含噪图像和去噪图像,同时得出峰值信噪比.-Wavelet soft-threshold denoising of MATLAB code, the mean input noise with noise will get the images and de-noising images, peak signal to noise ratio obtained at the same time.
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Size: 197632 |
Author: 罗凯 |
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Description: ％ PIEFLAB Main Directory
％ ----------------------
％
％ .m - files
％ ----------
％ Contents.m : this file
％ startup.m : startup file: sets Matlab path executed automatically when
％ Matlab command is performed in this directory
％
％ subdirectories
％ --------------
％ General/ : general matlab commands
％ MRF/ : Markov Random Field: Bayesian algorithm for images
％ Noise/ : noise generation, density/distribution functions
％ Tests/
％ Threshold/ : threshold procedures (includes threshold assessment)
％ WT/ : Wavelet Transform routines
％ Poisson/ : Poisson intensity estimation routines
％ Copyright (c) Maarten Jansen
％ K.U.Leuven - Flanders (Belgium)
％
％ This software is part of PiefLab and is copyrighted material. More info on
％ copyright policy is available on:
％ www.cs.kuleuven.ac.be/~maarten/software/- PIEFLAB Main Directory----------------------. M- files---------- Contents.m: this file startup.m: startup file: sets Matlab path executed automatically when Matlab command is performed in this directory subdirectories-------------- General /: general matlab commands MRF /: Markov Random Field: Bayesian algorithm for images Noise /: noise generation, density/distribution functions Tests/Threshold /: threshold procedures (includes threshold assessment) WT /: Wavelet Transform routines Poisson /: Poisson intensity estimation routines Copyright (c) Maarten Jansen KULeuven- Flanders (Belgium) This software is part of PiefLab and is copyrighted material. More info on copyright policy is available on: www.cs.kuleuven.ac.be/ ~ maarten/software /
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Size: 113664 |
Author: 汪伟 |
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Description: 本程式实做了Noise Reductin Algorithm
2005年一个韩国人在ieee发表的Paper
Block-based noise estimation using adaptive Gaussian filtering
此论文也收录在资料夹中，供使用者参考。
首先，click open file，
选择第一张原始图(未被杂讯污染)
接下来选择第二张图(有杂讯)
你可以直接点选Noise Reduction观看结果
也可以先调整旁边的threshold，观看不同threshold下去除杂讯的效果。
本程式利用统计理论，在去除杂讯的过程，成功保留了边缘特征，
使影像看起来较为立体、清晰。-This program is to do a Noise Reductin Algorithm2005 a Korean in the year ieee published PaperBlock-based noise estimation using adaptive Gaussian filtering of this thesis is also included in the folder for reference. First of all, click open file, select first the original plan (not noise pollution) Next select the second graph (with noise) you can watch the results of Click Noise Reduction can also adjust next threshold, watch different under the threshold to remove noise effects. This program using statistical theory, to remove noise in the process of successfully retained the edge features, to make images look more three-dimensional and clear.
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Size: 6465536 |
Author: 李威和 |
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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: 根据小波变换和噪声信号地能量分布特性，提出了一种先用小波变换对含噪图像进行多尺度分解，求出各尺度小波变换高频系数地噪声方差和阈值，利用各尺度地阈值对高频系数进行处理，然后利用小波变换系数重构图像，实现图像降噪地方法。-According to wavelet transform and noise signal and energy distribution characteristics, a first wavelet transform of the noisy image multiscale decomposition, obtained the high-frequency-scale wavelet transform coefficients and noise variance and thresholds, using the scale to the threshold value of the deal with high-frequency coefficients, and then the use of wavelet transform coefficients reconstructed image, to realize image denoising methods.
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Size: 519168 |
Author: wangrui |
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Description: ：为实现番茄收获机械自动化，提出了利用计算机视觉代替人眼对成熟番茄进行自动识别的方法。首先对番茄图像进
行了各种去除噪声方法的比较，提出用HSI 颜色系统的H 色调分量作为识别的颜色特征参数。利用最大方差自动取阈法及
数学形态运算等构成的识别算法对采集的番茄图像进行自动识别.-: In order to realize automation of tomato harvesting, the use of computer vision to replace the human eye of a mature tomato automatic identification method. First, a variety of tomato image noise removal methods, the use of HSI color hue component H system as a means of identification of the color feature parameter. Automatic check using the maximum variance threshold method and mathematical form of computing, such as recognition algorithm consisting of tomato collected images of automatic identification.
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Size: 94208 |
Author: daiyu |
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Description: 通过小波变换选取阈值，降噪处理，证明软阈值处理的效果比硬阈值好-Through the wavelet transform to select the threshold, noise reduction processing, soft-threshold to prove the effectiveness of dealing with the hard threshold than good
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Size: 1024 |
Author: lj |
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Description: 一份color image noise降噪的code，作者利用pca 自适应的把color noise分离并阈值化后返回。可有效去除color noise-A color image noise noise code, the authors use PCA to color noise adaptive threshold of separation and return. Can effectively remove color noise
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Size: 2048 |
Author: 裘振 |
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Description: 小波阈值去噪。对图像加噪，并进行小波1到4层分解去噪，给出信噪比走势图-Wavelet threshold denoising. Image noise, and 1-4 layers of wavelet decomposition of de-noising, signal to noise ratio is given chart
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Size: 1024 |
Author: 王颖 |
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Description: 一个基于小波阈值的信号处理程序，通过自适应阈值方式抑制信号噪声-A threshold based on wavelet signal processing procedures, through the adaptive threshold signal noise suppression methods
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Size: 1139712 |
Author: snow |
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Description: 医学图像处理，绝得能用的细胞边缘检测，分割最佳阈值的迭代算法，轮廓提取受噪声影响的分析-Medical image processing, the cells must have to use edge detection, segmentation optimal threshold of iterative algorithm, contour extraction affected by noise analysis
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Size: 61440 |
Author: 冯董 |
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Description: 基于小波变换的阈值去噪，对含噪声图像进行阈值去噪-Threshold based on wavelet transform denoising of images with noise threshold denoising
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Size: 1024 |
Author: zixin |
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Description: Compute Classical detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
-Compute Classical detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
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Size: 1024 |
Author: mid |
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Description: Compute Classical CFAR binary detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
-Compute Classical CFAR binary detection threshold for radar detection under additive Gaussian white noise criterion and specified false alarm probability.
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Size: 3072 |
Author: mid |
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Description: 基于matlab的自适应分段阈值分割，根据直方图自动寻峰自动分割-Matlab based on adaptive sub-threshold segmentation, according to the histogram peak automatic automatic segmentation
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Size: 2048 |
Author: cicy |
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Description: 小波阈值降噪的例程，可以选择多种原始信号及多种阈值方式。-Wavelet threshold noise reduction routine, you can choose a variety of the original signal and multi-threshold approach.
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Size: 1024 |
Author: 孙彪 |
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