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【matlab】 beylkin-sar-spie DL : 0: Many synthetic aperture radar (SAR) image formation algorithms require the computation of a multidimensional Fourier transform of irregularly-sampled or unequally-spaced data samples. We apply a recently developed algorithm, the unequally-spaced FFT (USFFT),2 to SAR image formation and compare its accuracy and complexity to a conventional algorithm. We find that the USFFT algorithm allows comparable accuracy to traditional approaches at a slightly reduced computational cost. We briefly discuss extensions of the USFFT algorithm to multiresolution SAR imaging
Update : 2024-04-24 Size : 180224 Publisher : ali
【Wavelet】 watermarkcleck-door DL : 0: 小波变换域图像水印算法是一种对图像多尺度的空间频率分解[13]，能更好地与人类视觉系统（HVS Human Visual System）相匹配。由于小波变换具有良好的时频局部性和多分辨率表示的特点，而且，当前最新的图像压缩标准——JPEG2000 和视频的MPEG-7 压缩标准都采用了小波变换，-The wavelet transform domain image watermarking algorithm is a multi-scale image of the spatial frequency decomposition [13], to better match the human visual system (HVS Human Visual System). Because the wavelet transform has good frequency characteristics of the locality and multiresolution representation, and, the latest image compression standard- JPEG2000 and video MPEG-7 compression standards have adopted the wavelet transform,
Update : 2024-04-24 Size : 1992704 Publisher : QYH
【Windows Develop】 GGAUSSIANPYRAa DL : 0: 高斯金字塔算法程序，在OpenCV开发环境下能实现多分辨辨率多多尺度的高斯金字塔的图像处理。，已通过测试。 -Gaussian pyramid algorithm program in OpenCV development environment multiresolution a lot of scale of the resolution Gaussian pyramid of image processing. , Has been tested.
Update : 2024-04-24 Size : 1725440 Publisher : 口音
【Software Engineering】 sonar2 DL : 0: 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.
Update : 2024-04-24 Size : 325632 Publisher : cooldog
【Compress-Decompress algrithms】 detail DL : 0: 获得一个投影在细节空间背景下的多分辨率分析。 -Obtain a projection on the detail space in the context of the multiresolution analysis.
Update : 2024-04-24 Size : 1024 Publisher : 付达
【Other】 Digital-Image-Processing-By-Gonzalez-2nd-Edition- DL : 0: Digital Image Fundamentals Image Enhancement in the Spatial Domain Image Enhancement in the Frequency Image Restoration Color Image Processing Wavelets and Multiresolution Processing Image Compression Morphological Image Processing Image Segmentation Representation and Description Object Recognition. -Digital Image Fundamentals Image Enhancement in the Spatial Domain Image Enhancement in the Frequency Image Restoration Color Image Processing Wavelets and Multiresolution Processing Image Compression Morphological Image Processing Image Segmentation Representation and Description Object Recognition.
Update : 2024-04-24 Size : 5950464 Publisher : Erica Costa
【Software Engineering】 WignerVille2014 DL : 0: 本文将小波图像分解和信息熵特征提取相结合，提出一种新的掌纹特征提取算法。该算法首先对掌纹灰度图像进行二维小波分解，再利用多分辨信息熵分别计算不同尺度下的能谱熵作为特征向量，从而实现掌纹特征提取。该算法不但避免了图像增强和纹理细化等预处理过程，而且运用多分辨信息熵的自适应计算方法来调节分解级数，使得到的特征向量长度远小于传统算法。-In this paper, wavelet image decomposition and information entropy feature extraction combined propose a new feature extraction algorithm. The algorithm first palmprint grayscale image two-dimensional wavelet decomposition, reuse multiresolution information entropy were calculated at different scales of the energy spectrum entropy as feature vectors, enabling feature extraction. The algorithm not only avoids the preprocessing such as image enhancement and texture refinement process, and the use of multi-resolution information entropy adaptive calculation method to regulate the decomposition level, so that the length of the feature vector obtained is far smaller than the conventional algorithm.
Update : 2024-04-24 Size : 8443904 Publisher : wei
【Software Engineering】 Marx20110509 DL : 0: 本文将小波图像分解和信息熵特征提取相结合，提出一种新的掌纹特征提取算法。该算法首先对掌纹灰度图像进行二维小波分解，再利用多分辨信息熵分别计算不同尺度下的能谱熵作为特征向量，从而实现掌纹特征提取。该算法不但避免了图像增强和纹理细化等预处理过程，而且运用多分辨信息熵的自适应计算方法来调节分解级数，使得到的特征向量长度远小于传统算法。-In this paper, wavelet image decomposition and information entropy feature extraction combined propose a new feature extraction algorithm. The algorithm first palmprint grayscale image two-dimensional wavelet decomposition, reuse multiresolution information entropy were calculated at different scales of the energy spectrum entropy as feature vectors, enabling feature extraction. The algorithm not only avoids the preprocessing such as image enhancement and texture refinement process, and the use of multi-resolution information entropy adaptive calculation method to regulate the decomposition level, so that the length of the feature vector obtained is far smaller than the conventional algorithm.
Update : 2024-04-24 Size : 1056768 Publisher : wei
【Other】 multiresolution DL : 0: 小波分析综述性文章，介绍了小波的发展及最新研究现状，适合初学者阅读-The wavelet analysis review article describes the development and the latest research Wavelet status quo, suitable for beginners to read
Update : 2024-04-24 Size : 209920 Publisher : hz
【2D Graphic】 Hausdorff_Distance DL : 0: 提出了利用小波分解建立多分辨率图像锥和Hausdorff距离的医学图像配准方法。先利用小波方法建立多分辨率图像锥, 然后根据梯度向量幅度提取分层图像的特征点, 利用Hausdorff距离进行特征点集的匹配。该方法提高了配准的速度和精度, 而且具有鲁棒性。-Image registration is the matching processing in which two or more images match from the same scene derived from different time and different sensors. A new method of medical image registration based on multi-resolution image cone and Hausdorff Distance is put forward. Firstly, the image is decomposed with wavelet method and transformed to multiresolution image. Multiresolution image cone is constructed by multiresolution image. Secondly, gradient vector flow is used to detect feature points. Finally, Hausdorff Distance is used for matching sets of feature points. Theories and experiments indicate that this method has some advantages such as high precision and good robustness.
Update : 2024-04-24 Size : 300032 Publisher : vivi
【Software Engineering】 Diego_Dugatkin_Thesis.pdf DL : 0: For multiresolution, this is a very nice thesis for detailed explanation.-For multiresolution
Update : 2024-04-24 Size : 823296 Publisher : pieer
【2D Graphic】 VC2008(multiresolution-mosaic) DL : 0: 用VC实现基于拉普拉斯多辨率融合的代码，能很好的实现无缝效果-Using VC to achieve multiple resolution fusion code
Update : 2024-04-24 Size : 4639744 Publisher : 崔汉锋
【matlab】 Pudn DL : 0: A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.
Update : 2024-04-24 Size : 14336 Publisher : Aynesh
【Program doc】 lossless-image-compression-based-on-optimal.pdf.z DL : 0: The optimal predictors of a lifting scheme in the general n-dimensional case are obtained and applied for the lossless compression of still images using rst quincunx sampling and then simple row-column sampling. In each case, the e ciency of the linear predictors is enhanced nonlinearly. Directional post- processing is used in the quincunx case, and adaptive-length postprocessing in the row-column case. Both methods are seen to perform well. The resulting nonlinear interpolation schemes achieve extremely e cient image decorrelation. We further investigate context modeling and adaptive arithmetic coding of wavelet coe cients in a lossless compression framework. Special attention is given to the modeling contexts and the adaptation of the arithmetic coder to the actual data. Experimental evaluation shows that the best of the resulting coders produces better results than other known algorithms for multiresolution-based lossless image coding. - The optimal predictors of a lifting scheme in the general n-dimensional case are obtained and applied for the lossless compression of still images using rst quincunx sampling and then simple row-column sampling. In each case, the e ciency of the linear predictors is enhanced nonlinearly. Directional post- processing is used in the quincunx case, and adaptive-length postprocessing in the row-column case. Both methods are seen to perform well. The resulting nonlinear interpolation schemes achieve extremely e cient image decorrelation. We further investigate context modeling and adaptive arithmetic coding of wavelet coe cients in a lossless compression framework. Special attention is given to the modeling contexts and the adaptation of the arithmetic coder to the actual data. Experimental evaluation shows that the best of the resulting coders produces better results than other known algorithms for multiresolution-based lossless image coding.
Update : 2024-04-24 Size : 268288 Publisher : dee
【Special Effects】 Multiresolution-image-detection DL : 0: 多分辨率图像的检测识别本例通过不同光谱带下的信息来使获取的图像具有更多的信息，然后通过归一化变量来确定检测信息。程序代码通过编译，解释详细，非常适合初学者。-Multi-resolution detection and identification of the image information of this example by a different spectral band for the acquired image with more information, then to determine the detected information by the normalized variables. Program code by compiling a more detailed explanation, very suitable for beginners.
Update : 2024-04-24 Size : 1188864 Publisher : guocheng
【Documents】 Directional-Multiresolution DL : 0: Wavelets, directional multi resolution -Wavelets, directional multi resolution
Update : 2024-04-24 Size : 5385216 Publisher : ahmed
【android】 MultiResolution DL : 0: this application gives a general view of "pulltarClient" using eclipse to treat source code java
Update : 2024-04-24 Size : 370688 Publisher : mbrka
【Other】 Wavelet-analysis DL : 1: 小波理论、多分辨分析及共轭滤波器、连续小波变换、最佳小波基的算法-Wavelet theory, multiresolution analysis and conjugate filters, continuous wavelet transform, best wavelet algorithm
Update : 2024-04-24 Size : 13492224 Publisher : 雨之叶
【AI-NN-PR】 wavelet_duofenbian DL : 0: 本段程序主要是利用是对模拟电路所产生的信号进行多分辨分析，得到所反映的故障的特征-This procedure is mainly the use of signal generated by the analog circuit fault feature of multiresolution analysis, the obtained
Update : 2024-04-24 Size : 1562624 Publisher : 王中华
【Special Effects】 fusetool DL : 0: 这个工具箱包括以下融合方法: 线性方法线性叠加 pca加权叠加非线性方法选择最小值选择最大值多分辨率方法拉普拉斯金字塔 fsd金字塔比率金字塔对比度金字塔梯度金字塔使用DBSS dwt(2,2)小波 sidwt使用哈尔小波形态金字塔这个函数是伴随着一个图形用户界面,允许图像i / o和交互式选择所有相关参数。 -The toolbox includes the following fusion methods: linear methods linear superposition pca weighted superposition nonlinear methods select minimum value select maximum value multiresolution approaches laplacian pyramid fsd pyramid ratio pyramid contrast pyramid gradient pyramid dwt using DBSS(2,2) wavelet sidwt using haar wavelet morphological pyramid The functions are accompanied by an graphical user interface which allows image i/o and the interactive selection of all relevant parameters.
Update : 2024-04-24 Size : 149504 Publisher : fanjc

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