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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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least_least_squares_regression
最小二乘拟合,最小二乘拟合直线算法,使用matlab实现最小二乘拟合直线。(Least square fitting, least squares fitting straight line method, using the least squares fitting straight line matlab implementation.)
- 2011-06-14 22:23:20下载
- 积分:1
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me_root_Music
阵列天线中子空间算法中MUSIC算法的一种改进方法即求根MUSIC算法。(Neutron array antenna space MUSIC algorithm, an improved algorithm method that Root MUSIC algorithm.)
- 2013-12-13 10:17:59下载
- 积分:1
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filter_final
说明: 提取滤波器耦合矩阵:利用特征值和T向量构造M矩阵,并进行相似变换求得不同结构的滤波器耦合矩阵(Extract filter coupling matrix: use eigenvalues and T vectors to construct M matrix, and perform similar transformations to obtain filter coupling matrices with different structures)
- 2020-09-28 19:24:35下载
- 积分:1
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yanjius
matlab对于大矩阵的简单求解,初学者可参考(Solving simple matlab)
- 2013-12-08 15:30:18下载
- 积分:1
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shjfl
是一个利用神经分类来达到人俩识别的matlab程序,很好用!(Is a classification of the use of nerve to achieve the people were identified matlab procedures, very good use!)
- 2008-05-15 19:03:14下载
- 积分:1
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ft3
FT3 M-file for ft3.fig
FT3, by itself, creates a new FT3 or raises the existing singleton
- 2012-04-02 18:32:31下载
- 积分:1
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4563
matlab所有应用程序,很实用,很好很好大家收藏哦,赶快下载(matlab all applications, very practical, very, very good everyone Favorite oh, quickly download)
- 2013-04-15 19:35:19下载
- 积分:1
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contourlet_toolbox
contourlet工具包,属于超小波分析里头的contourlet变换的m文件(contourlet kits are super wavelet analysis inside the contourlet transform m file)
- 2013-12-13 16:30:24下载
- 积分:1
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边缘检测代码MATLAB
程序代码说明 P0701:细胞边缘检测 P0702:癌细胞形态学分析 P0703:癌细胞颜色分析(code P0701 Note : Cell Edge Detection P0702 : Morphological analysis P0703 cancer : cancer color analysis)
- 2005-03-24 09:11:38下载
- 积分:1