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extratorEstatisticaA1.m
testura image descriptor
- 2012-04-03 01:14:33下载
- 积分：1
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mlsr
北京大学 流形学习与稀疏表示 课程课件.(包括基本数学工具、黎曼几何、降维方法、稀疏表示等理论和编程方法）(Peking manifold learning courseware and sparse representation. (Including basic mathematical tools, Riemannian, dimension reduction methods, sparse representation theory and programming methods))
- 2015-04-13 14:22:33下载
- 积分：1
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2013TSP
说明： 通过并行压缩进行二维信号压缩，提出了一种利用并行压缩传感技术对二维信号进行压缩的新方案。根据这个原理，译码器的重新构造可以并行进行。通过对二维信号进行某些排列，可以确保所有列具有大致相同的密度级别，并且可以使用相同的测量矩阵进行采样。这样可以避免二维信号的矢量化，从而大大减小测量矩阵的尺寸。我们证明，如果排列良好，重建均方误差的上限会更紧。为了说明这一方案，我们将其应用于视频压缩并使用不同帧的排列有两种：参考帧的基于Z字形扫描的排列和非参考帧的基于块测试的排列。仿真结果表明，在相同的压缩比下，峰值信噪比比比在无置换情况下可提高3-7db左右。(we propose a new scheme to compress 2D signals using parallel compressed sensing. According to this seheme, the reeonstruction at the decoder can be performed in parallel. By performing certain permutation on a 2D signal, all columns are insured to have approximately the same density level and can be sampled using the same measurement matrix. In this way, vectorization of a 2D signal can be avoided, and thus the size of the measurement matrix can be dramatically reduced. We prove that with a good permutation, we can have a tighter upper bound on reconstruction mean square error. To illustrate this scheme, we apply it to video compression and use
two kinds of permutations for different frames: the zigzag-scanbased permutation for reference frames and the block-test-based permutation for non-reference frames. Simulation results show that under the same compression ratio, the peak signal-to-noise ratio can be improved by approximately 3-7 dB compared to the case without permutation.)
- 2019-01-12 22:48:49下载
- 积分：1
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AICandMDL
经典的信息论准则估计信号源个数。 使用空间谱估计理论，模拟发射信号由天线阵列接受采样。经过AIC和MDL两种算法，估计出采样序列中信号的个数，所加噪声是白噪声。(Classical information theory for sources number estimation. It s spatial spectrum estimation theory. it analogs transmission signal from the antenna array . It uses two algorithms“ AIC and MDL ”to estimate the number of sampled signal sequence. the added noise is white noise.)
- 2021-03-25 11:39:14下载
- 积分：1
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graygrad
计算二维灰度-梯度直方图，很好用，特别好，啦啦啦(Calculate two-dimensional grayscale-gradient histogram, very good use, especially good, la la la)
- 2018-06-02 16:42:41下载
- 积分：1
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Matlab编的计算器
本程序是在Matlab6.5下编写的一个计算器的程序，是Matlab的GUI编程的很好例子。 (the procedure was Matlab6.5 prepared a calculator procedures, Matlab GUI Programming good example.)
- 2005-06-04 09:32:05下载
- 积分：1
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rayleigh
Rayleigh fading channel based on
the Filtered Gaussian Noise method and
r based on the Sum of Sinusoids method(simulation for Rayleigh fading channel
-Plot the channel output for fm
T = 0.01, 0.1 and 0.5 (t/T =
0 ~ 300)
– Plot the channel output autocorrelation for fm
T = 0.01,
0.1 and 1.0 (fm
= 0 ~ 10))
- 2013-01-14 22:51:33下载
- 积分：1
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ddid
FUAL IMAGE DENOSIMNG MATLAB CODE
- 2014-11-27 16:41:55下载
- 积分：1
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imagesegmentation
1.边缘检测，分别用Sobel, Laplacian-Gaussian 方法对一幅灰度图像进行边缘提
取，并给出对比结果；
2.灰度阈值分割：利用双峰法对一幅灰度图像进行灰度分割处理。(1. Edge detection, respectively Sobel, Laplacian-Gaussian methods on a gray-scale image edge extraction, and gives comparative results 2. Gray threshold segmentation: Using Twin Peaks method a gray image gray-scale be dealt with separately.)
- 2009-11-07 19:01:39下载
- 积分：1
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MAIN_ISA_ALGORI
THIS CODE ILLUSTRATE ITERATIVE SIGNATURE ALGORITHM VERY GOOD CODE TO EXPLAIN THE IDEA GOOD FOR BEGINNERS IN MATLAB
- 2011-05-14 16:17:36下载
- 积分：1
