-
cp
说明: 一个控制面板编程的例程,讲述如何把你的程序添加到控制面板上面。(A control panel programming routines, describes how to program your control panel added to the above.)
- 2007-12-04 13:35:57下载
- 积分:1
-
arma
运用matlab的m文件来求样本的自协方差,自相关函数(Seeking sample autocovariance and autocorrelation function)
- 2012-05-26 22:00:57下载
- 积分:1
-
1kernel-ica1_1
核主元分析程序,利用核函数将非线性数据映射到线性空间,再利用主元分析提取特征数据。(KPCA procedure uses the kernel nonlinear data mapped into linear space, and then using principal component analysis to extract feature data.)
- 2013-07-09 15:26:00下载
- 积分:1
-
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
-
2U-1
异构网络垂直切换算法的源代码,该代码的功能是移动台在三个网络之间的状态。(Heterogeneous network vertical handoff algorithm source code, which is a mobile station state functions between the three networks.)
- 2015-10-01 17:30:09下载
- 积分:1
-
小波信息熵
说明: 对信号进行小波变换,确定小波基的选择和分解层数,再求解信号的信息熵,可用于故障诊断。(The wavelet transform is performed on the signal to determine the selection and decomposition layers of the wavelet base, and then the information entropy of the signal is solved, which can be used for fault diagnosis.)
- 2019-04-25 15:12:50下载
- 积分:1
-
tuoyaun
MATLAB实现的一种基于最小二乘的椭圆拟合直接算法源代码(MATLAB implementation of the ellipse fitting based on least-squares algorithm for the source code directly)
- 2010-01-21 18:28:43下载
- 积分:1
-
四阶Runge-Kutta法解常微分方程组
四阶Runge-Kutta法解常微分方程组(Fourth Order Runge-Kutta Method for Solving Ordinary Differential Equations)
- 2020-12-17 09:49:11下载
- 积分:1
-
haming_encoding
汉明码编码仿真程序,在Matlab环境下仿真,适用于初学者。(Hamming code encoding simulation program, in the Matlab simulation environment for beginners.)
- 2009-01-06 20:37:58下载
- 积分:1
-
apg_partial
部分APG算法解决了核函数相关模式识别问题的例子,可加速迭代进程,减少运算时间.(An Accelerated Proximal Gradient Algorithm for Nuclear Norm Regularized Least Squares problems)
- 2013-08-22 17:23:57下载
- 积分:1