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CFD2_lc
有限体积法求解一维欧拉方程,有助于理解近似黎曼解的概念(Finite volume method for solving one-dimensional Euler equations, contribute to an understanding of the concept of approximate Riemann solutions)
- 2007-09-10 14:19:21下载
- 积分:1
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LBP
local binary pattern source code
- 2012-05-08 19:59:53下载
- 积分:1
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Extened kalman filter
说明: 实现IMU数据的拓展卡尔曼滤波,可以解算人体姿态,得到欧拉角等数据(Extened kalman fikter)
- 2019-05-20 18:01:06下载
- 积分:1
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Rec_Analysis
说明: 逻辑分析系统代码,在实验中广泛使用!放心用(Logic analysis system code, widely used in the experiment! Rest assured)
- 2011-04-09 12:35:37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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wilkinson
蜂窝移动通信系统中的编码方法wilkinson(wilkinson CODING METHOD FOR CELL SYSTEM)
- 2009-03-30 13:58:00下载
- 积分:1
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Matlabgraphicbackgroundcodes
Matlab图形背景代码
包括导入数据、进度条、当前时间、主界面窗口设置等等。(Matlab codes of graphic background)
- 2009-12-04 14:59:41下载
- 积分:1
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NSGAII
NGAII变成程序求解经济调度,是多目标的,内涵PDF文件(NGAII into economic dispatch, solving process is the goal, the connotation of PDF files)
- 2020-11-24 15:09:32下载
- 积分:1
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equalizer
说明: matlab实现线性mmse均衡器,代码实用(the linear mmse equalizer matlab code utility)
- 2011-04-18 10:01:52下载
- 积分:1
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MATLAB-basic
基于matlab的一些常用算法,包括一些数值算法,特殊函数的计算等(Based on matlab some commonly used algorithms, including some of the numerical algorithm, the calculation of the special function)
- 2013-01-22 11:29:30下载
- 积分:1