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DCT_SVD
说明: 本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。(This paper presents an original video in the DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm for adaptive watermark embedding. Firstly, a video stream is divided into scenes, scenes of the video image is converted to the DCT-SVD domain, the watermark embedded in the largest singular quantification, the realization of the watermark signal. Furthermore, the experiments show that the algorithm meet the transparency requirements are met under certain robustness requirements, can resist the low-pass filtering, median filtering, salt and pepper noise, Gaussian noise, H.264 compression attacks and attacks and frame shear statistics attack.)
- 2010-04-18 18:42:59下载
- 积分:1
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simplex
simplex 矩阵,由 Hadamard 矩阵转化而来,可用于脉冲编码技术,另附序列相关函数程序
(simplex matrix, the Hadamard matrix transformed from pulse coding techniques can be used, attached serial correlation function of the program)
- 2014-01-01 16:56:35下载
- 积分:1
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2D激光slam程序
说明: 一个激光slam的matlab仿真程序,代码有解释,对学习slam很有帮助(A matlab simulation program for laser slam with explanatory code is very helpful for learning slam.)
- 2019-04-02 15:03:05下载
- 积分:1
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phase_screen_128
种大气湍流相位屏仿真函数,可准确模拟大气对激光相位的改变。(An atmospheric turbulence phase screen simulation function, can accurately simulate the atmospheric changes to the laser phase.)
- 2013-12-27 01:41:46下载
- 积分:1
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haar-wavelet
haar二维小波分解,输出四个分解系数子矩阵.将系数重构,得到最终的输出矩阵(haar two dimension wavelet decompositon)
- 2015-02-01 14:17:32下载
- 积分:1
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MMC-converter
基于MMC逆变器的MATLAB的模型,初学者学习用。电力电子行业与电气工程行业学习资料。(MMC converter)
- 2017-01-03 16:41:29下载
- 积分:1
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1
说明: Sliding Mode control of BLDC motor
- 2009-06-09 15:16:42下载
- 积分:1
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tuous
研究生的一个课程设计,基于a’trous小波分解的方法的图像边缘提取(A graduate curriculum design, methods based on wavelet decomposition a' trous Image Edge Extraction)
- 2010-10-05 21:06:11下载
- 积分:1
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OFDM
ofdm 的仿真与实现,可以直接运行的,run为运行文件(ofdm fangzhenyushixian)
- 2010-12-09 22:11:23下载
- 积分:1
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QPSK
使用MATLAB编程,用于仿真QPSK的解调
- 2010-05-19 07:34:52下载
- 积分:1