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iterative-pyramidal-LK
关于光流法的一个外文论文,很好的讲述了光流法算法(An optical flow method on foreign language papers, very good about the optical flow algorithm)
- 2013-11-16 10:10:42下载
- 积分:1
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DCTlicheng
研究表明,构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时,离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵,所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵,即除了对角线元素以外,其它很多元素都近似为0,并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大,亮度突变只占少数,即图像能量以低频成分为主的特
性。通过变换后的量化,舍弃对视觉效果影响较小的次要信息,可达到进一步的压缩效果。
虽然从去相关性能的意义上讲,DCT是一种次于K一L变换的准最佳变换,但是从算法实现的角度来看,DCT则远远优于K一L变换。首先,当图像的分块大小确定后,DCT的变换矩阵也就随之确定了,不随输入信号的统计特性变化而变化 其次,二维DCT能够分解成两次一维DCT,有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分:1
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code3
加入载波相位偏差,用最大似然估计和错误估计估计相位误差,并进行比较。(Add carrier phase deviation, using maximum likelihood estimation and errors estimated phase error is estimated and compared.)
- 2009-02-27 22:11:22下载
- 积分:1
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rbf2
说明: 径向基函数的matlab原程序,并附有实例以及相关学习文档(Radial basis function matlab original program, together with examples and documentation related to learning)
- 2020-12-10 17:19:19下载
- 积分:1
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PESQ
Perceptual Evaluation Speech Quallify
- 2011-05-08 20:13:09下载
- 积分:1
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matlab-modeling-algorithm(1)
本资料包包含了系统的matlab建模用算法(This pack contains the system matlab modeling algorithm used)
- 2013-08-03 19:43:25下载
- 积分:1
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wuguoqing4
说明: 垂直阵和单点两种辐射噪声测量法的误差比较,吴国清的论文(Two vertical array and a single point of error radiated noise measurements compared to Wu Guoqing papers)
- 2011-03-09 17:59:59下载
- 积分:1
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MATLAB_Simulation
说明: 基于MATLAB图形用户界面的信号分选仿真系统(MATLAB-based graphical user interface, signal sorting simulation system)
- 2010-04-04 16:18:59下载
- 积分:1
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xindaobianma
关于通信类课程中信道容量的计算问题的几点探讨(Courses on communication Calculation of Channel Capacity of Some of)
- 2010-05-13 20:36:27下载
- 积分:1
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matrix_decompose
波达方向估计算法仿真中的基于解相干的MUSIC源程序 中的矩阵分解算法(Simulation of DOA estimation of MUSIC-based decoherence source in the matrix decomposition algorithm)
- 2011-05-30 23:23:08下载
- 积分:1