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2013TSP
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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number_GUI
matlab实现字符的识别,matlab实现字符的识别,(number recognition)
- 2009-05-23 22:18:59下载
- 积分:1
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CoSaMP
关于 CoSaMP 算法介绍 压缩传感压缩感知理论应用的算法(CoSaMP algorithm introduced)
- 2011-04-20 23:20:13下载
- 积分:1
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BP-neural-network-tuning-PID
BP神经网络整定的PID算法_matlab源程序(BP neural network tuning PID algorithm _matlab source)
- 2011-05-17 17:10:18下载
- 积分:1
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C
说明: 运用迭代法计算信道容量,MATLAB语言,输入参数:先验概率矩阵,输出:信道容量。(The use of iterative method to calculate the channel capacity, MATLAB language, input parameters: a priori probability matrix, the output: channel capacity.)
- 2009-12-06 19:24:28下载
- 积分:1
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swt_wlc
在matlab环境下实现一阶小波变换(Matlab environment in order to achieve a wavelet transform)
- 2009-05-30 18:27:29下载
- 积分:1
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9-10
不同方法估计协方差矩阵的Capon波束形成,以及多点约束的Capon波束形成和方向图,自己运行效果很好。(Different methods of estimation covariance matrix Capon beamforming, and multi-point constraints Capon beamforming and direction maps, run their own good results.)
- 2021-03-28 14:19:11下载
- 积分:1
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matlab-gpc
一阶纯滞后分段传递函数系统的模型预测控制matlab代码(matlab gpc)
- 2021-02-28 11:39:35下载
- 积分:1
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RGBtoHsi
matlab颜色模型转换的代码程序,数字图像处理的matlab程序代码(matlab code color model conversion program, digital image processing matlab code)
- 2015-03-18 14:44:05下载
- 积分:1
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The-Micro-Doppler-Effect-code
雷达信号中的微多普勒效应这本书的所有源代码,包括原处理信号的dat形式的文件,包括STFT等m文件(The micro-Doppler radar signal effect this book all the source code, including the form of the original signal processing dat files, including documents STFT and other m)
- 2020-12-07 19:19:20下载
- 积分:1