-
HESSIAN
黑塞矩阵(Hessian Matrix),又译作海森矩阵、海瑟矩阵、海塞矩阵等,是一个多元函数的二阶偏导数构成的方阵,描述了函数的局部曲率。黑塞矩阵最早于19世纪由德国数学家Ludwig Otto Hesse提出,并以其名字命名。黑塞矩阵常用于牛顿法解决优化问题,利用黑塞矩阵可判定多元函数的极值问题。在工程实际问题的优化设计中,所列的目标函数往往很复杂,为了使问题简化,常常将目标函数在某点邻域展开成泰勒多项式来逼近原函数,此时函数在某点泰勒展开式的矩阵形式中会涉及到黑塞矩阵。(Hessian Matrix, is a square matrix of the second order partial derivative of the multivariate function, which describes the local curvature of the function. The Hesse matrix was first proposed by the German mathematician Ludwig Otto Hesse in the 19th century and named after it. Hesse matrix is often used in Newton method to solve the optimization problem, using the black plug matrix to determine the extreme function of the extreme value problem.)
- 2017-09-12 13:58:39下载
- 积分:1
-
danyuzhituxiangfenge
说明: 利用遗传算法进行的 单阈值的图像分割 程序采用matlab编写(The use of genetic algorithm the single-threshold segmentation procedure prepared using matlab)
- 2008-09-16 12:07:24下载
- 积分:1
-
RobustMotionDeblur
运动模糊图像的去模糊算法(盲反卷积),里面有.exe文件(Motion blurred image to fuzzy (blind deconvolution)
- 2020-11-03 14:19:52下载
- 积分:1
-
Compare_different_m_and_SNR
通信专业滤波算法中通过改变不同的观测角计算接受信号的信噪比。(Communications professional filtering algorithm by changing the different observation angle calculation to accept the signal-to-noise ratio.)
- 2013-05-10 16:24:33下载
- 积分:1
-
image-segmation-shengzhang2
图像分割方法,用区域生长,然后进行区域合并,把较小的区域合在一起,效果比较好(image segmation)
- 2012-10-30 10:59:52下载
- 积分:1
-
USFFTCurvelet
提出了一种结合USFFT Curvelet 变换的各向异性扩散图像去噪模型。它有机结合了Curvelet 变换和各向
异性扩散(P-M扩散)两者的优点。通过P-范数方法选择合适的梯度阈值K,P-M扩散过程通过处理经过Curvelet
变换得到的图像的不同尺度的Curvelet 系数矩阵,实现了建立在对图像多尺度分析的基础上的新P-M扩散模型。
实验表明,新模型的处理结果能有效避免传统P-M 扩散出现的阶梯效应,同时更好地保留图像的纹理和细节。
关键词:图像去噪算法;各向异性扩散;Curvelet 变换;P-M 扩散(Abstract: An image de-noising model by integrating anisotropic diffusion with USFFT Curvelet transform was proposed,
which combined the strongpoint of Curvelet transform with anisotropic diffusion (P-M diffusion). By choosing appropriate
gradient threshold K through p-norms and carrying out the P-M diffusion process depend on the different scale matrixes
of Curvelet coefficient of the image from Curvelet transform iterations, as a result, the improved model made it
possible to carry out the new P-M diffusion de-noising process based on multi-scale analysis of the image. The experiment
results have demonstrated that the model can avert the stair-casing effect in the traditional P-M diffusion effectively
and keep the textures and details of images better.)
- 2011-05-27 23:41:25下载
- 积分:1
-
SELF-READING-SYSTEM
针对万工显螺旋显微镜视场图像特点,编写了Matlab 语言的图像处理算法用于万工显自动读数( The program which is developed by MATLAB language can be used for auto-reading of universal tools
microscope measurement result)
- 2011-11-21 16:26:02下载
- 积分:1
-
colortexture
说明: matlab编写的图像处理程序,用于提取图像的纹理、颜色特征。(matlab image processing procedures to prepare for the extraction of image texture and color features.)
- 2008-11-01 15:35:25下载
- 积分:1
-
lanstoolbox
计算图像的质心,各种矩以及基于矩的图像重构算法,对模式识别和图像处理有较大的研究价值。(calculated image of the center of mass, and for the moment the various moments of image reconstruction algorithm, on Pattern Recognition and Image Processing of a larger research value.)
- 2007-05-12 03:57:46下载
- 积分:1
-
ColorImageProcessing
一种基于non-sample的纹理合成demo,程序性能还有待优化,效果还不错.(texture synthesis demo.)
- 2013-09-27 22:53:20下载
- 积分:1