Description: 设计最小二乘逆滤波器求解反卷积问题,假设有观测噪声,为降低观测噪声的影响，可采用预白化方法,设计长度N=50的最小平方FIR逆滤波器-inverse filter design for least squares deconvolution, the assumption that the measurement noise, To reduce the impact of noise and possible pre-whitening method, the length N = 50 the minimum inverse square FIR filter Platform: |
Size: 27144 |
Author:吴森泉 |
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Description: Automatic target detection in SAR image is the first stage in the ATR (Automatic Target Recognition) system. It is very important to improve the computing efficiency of the whole system. A conventional automatic target detection method is CFAR (constant false alarm rate) which is based only on the amplitude, discards the phase and thereby sacrifices half information of the SAR imagery. Almost each CFAR brings a large number of false alarms. 2L-IHP (two-look internal Hermitian product) is a new method which exploits the phase and amplitude information. In this paper, both CFAR and 2L-IHP algotithms are compared with an emphasis on 2L-IHP. The 2L-IHP algorithm for target detection is discussed briefly first. In order to apply it widely, it is modified to circumvent the constraint of the data. For polarimetric SAR images, PWF (Polarimetric Whitening Filter) is used to generate an image for target detection. According to ADTS data set, these algorithms are analyzed and evaluated respectively. C-、L- and P- band AIRSAR data are also processed, and some tentative conclusions are derived: Considering the penetrating ability of the microwave, L-band got the best detection accuracy of the three bands; HH polarization performed better for target detection than VV and HV polarization; Moreover, because more information is contained in polarimetric SAR data, here, we conclude that polarimetric SAR data have advantages over single polarized SAR data when they are applied for target detection. But all these conclusions need further validation. Platform: |
Size: 288371 |
Author:xbtown@126.com |
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Description: 设计最小二乘逆滤波器求解反卷积问题,假设有观测噪声,为降低观测噪声的影响，可采用预白化方法,设计长度N=50的最小平方FIR逆滤波器-inverse filter design for least squares deconvolution, the assumption that the measurement noise, To reduce the impact of noise and possible pre-whitening method, the length N = 50 the minimum inverse square FIR filter Platform: |
Size: 26624 |
Author:吴森泉 |
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Description: 这是一个白化数据的程序用于MATLAB中，希望有所帮助-This is a data-whitening procedures for MATLAB in the hope that help Platform: |
Size: 45056 |
Author:sony |
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Description: 对极化SAR图像进行原始PWF（极化白化滤波）处理，最终可输出一幅图像。
当然，输入输出都是雷达接收到的电场强度信息，要转化为图像还需要将其值转换为255灰度范围内。-Polarization SAR images of the original PWF [polarization whitening filter] treatment, the final output image. Of course, input and output are the radar received electric field strength information, it is necessary to transform the image also needs to be converted to 255 gray value range. Platform: |
Size: 1024 |
Author:郎志超 |
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Description: 对极化SAR图像进行改进的PWF（极化白化滤波）处理，最终可分别输出四个极化通道的图像数据。
输入输出都是雷达接收到的电场强度信息，要转化为图像还需要计算其幅度值并转换到255灰度范围内。-Of polarization SAR images to improve the PWF [polarization whitening filter] treatment, and ultimately can be output separately polarization four-channel image data. Input and output are the radar received electric field strength information, it is necessary to translate into images is also necessary to calculate their magnitude values and converted to 255 gray-scale range. Platform: |
Size: 1024 |
Author:郎志超 |
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Description: 介绍了一种基于神经网络白化匹配滤波器的QRS 波检测方法。我们用神经网络白化匹配滤波器来处
理ECG 信号的低频成分, 模拟其非线性及非稳态的特性。处理后的信号中含有ECG 中大部分高频成分, 让其通过
一线性匹配滤波器来检测QRS 波及其位置。对于大噪声的ECG 信号, 在匹配滤波器后加差分滤波, 取平方及滑动
平均等处理, 提高检测正确率。使用这种方法我们对M IT?B IH 心电信号数据库中噪声比较大的105号数据进行的
处理, 检测正确率为9912 。作为对比, 用数字带通滤波器检测, 正确率为9718 。-Introduced a whitening matched filter based on neural network of the QRS wave detection. We use neural networks to handle the whitening matched filter low frequency ECG signal to simulate the nonlinear and non-steady state characteristics. Processed ECG signal contains most of the high frequency components, let through a linear matched filter to detect the QRS wave and position. For large noise the ECG signal after the matched filter plus differential filter, such as taking the square and the moving average processing, improve the detection accuracy. Using this method we have M IT?B IH noise ECG database of 105 large data processing, testing rate was 9912 correct. In contrast, detection with digital band-pass filter, the correct rate of 9718 . Platform: |
Size: 266240 |
Author:罗朝辉 |
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Description: In this exercise we will compute the least squares parameters fit of “pre-whitening” FILTER that is linear in
the parameters. Platform: |
Size: 9216 |
Author:Ashraf |
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Description: 我完成了修图软件中的三个基本功能，人像磨皮、白平衡调节和皮肤美白。人像磨皮使用双边滤波器完成，效果良好但运行速度慢。白平衡调节使用灰度世界算法来编写程序，可以自动调节偏色照片的白平衡，运行效果良好。皮肤美白使用优化的白平衡算法来对皮肤进行提亮处理，运行效果良好。其中，磨皮力度和美白力度可以通过滑块调节，方便使用。我还为该程序设计了一个简单的界面，并切加入丰富的色彩来吸引用户使用。程序中处理的照片可以自行选择，处理后的照片也可以直接保存。-I finished retouching software three basic functions, Portrait dermabrasion, white balance adjustment, and skin whitening. Portrait microdermabrasion using bilateral filter completed with good results but runs slow. White balance adjustment to write programs using the gray world algorithm that automatically adjusts the color cast photo of white balance, running well. White skin whitening using the optimized algorithm to brighten skin treatment, running well. Among them, dermabrasion intensity and whitening efforts by the slider to adjust, easy to use. I also design for the program a simple interface and rich colors cut added to attract users. Photo processing programs can choose, after treatment photos can also be directly saved. Platform: |
Size: 2165760 |
Author:唐诗 |
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Description: 我完成了修图软件中的三个基本功能，人像磨皮、白平衡调节和皮肤美白。人像磨皮使用双边滤波器完成，效果良好但运行速度慢。白平衡调节使用灰度世界算法来编写程序，可以自动调节偏色照片的白平衡，运行效果良好。皮肤美白使用优化的白平衡算法来对皮肤进行提亮处理，运行效果良好。其中，磨皮力度和美白力度可以通过滑块调节，方便使用。我还为该程序设计了一个简单的界面，并切加入丰富的色彩来吸引用户使用。程序中处理的照片可以自行选择，处理后的照片也可以直接保存。(I finished retouching software three basic functions, Portrait dermabrasion, white balance adjustment, and skin whitening. Portrait microdermabrasion using bilateral filter completed with good results but runs slow. White balance adjustment to write programs using the gray world algorithm that automatically adjusts the color cast photo of white balance, running well. White skin whitening using the optimized algorithm to brighten skin treatment, running well. Among them, dermabrasion intensity and whitening efforts by the slider to adjust, easy to use. I also design for the program a simple interface and rich colors cut added to attract users. Photo processing programs can choose, after treatment photos can also be directly saved) Platform: |
Size: 22528 |
Author:Looopc
|
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Search - whitening filter