Description: 本文主要研究的是偏微分方程在数字图像处理方面的应用。文章首先详细阐
述了尺度空间的概念和性质，并以热传导方程所确定高斯尺度空间为例给出了连
续尺度空间与偏微分方程的联系。接着文章由简单的线性扩散方程开始，介绍了
非线性同质扩散和非线性异质扩散，不仅给出了相应的具体扩散方程模型，而且
对它们在图像处理中的不同效果作了比较。-This paper studies the partial differential equations in the digital image processing applications. The article first elaborates the concept of scale space and nature, and to determine the heat conduction equation by the Gaussian scale space is given as an example a continuous scale space with the associated partial differential equations. Then a simple article from the beginning of the linear diffusion equation, introduce a non-linear homogeneous proliferation and the proliferation of non-linear heterogeneous, not only the corresponding specific diffusion equation model, but also for them to deal with different image effects were comparison. Platform: |
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Description: 图像处理的基础上正交方向前进扩散偏微分方程图像修复和去噪模型变化问题-an orthogonal—directional forward diffusion Partial Differential Equation
(PDE)image inpainting and denoising model which processes image based on variation problem is
proposed Platform: |
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Author:小屋 |
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Description: 基于偏微分方程的图像,利用扩散方程进行图像修补，同时还有使用CDD (curvature driven diffusions)模型进行修补的程序-Image based on partial differential equations, using diffusion equation for image repair, as well as use CDD (curvature driven diffusions) the procedure to repair the model Platform: |
Size: 22528 |
Author:李娜 |
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Description: 用VC++、OpenCV实现的基于整数阶偏微分方程的图像去噪方法。 希望对大家有点用-VC++, OpenCV implemented based on the integer-order partial differential equation image denoising method. I hope with a little bit for everyone Platform: |
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Author:big |
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Description: 图像处理的偏微分方程方法随书光盘，提供了若干典型数值方案的实验性matlab程序和可供试验用的图像素材-Image Processing Partial Differential Equations CD with the book, provides images of some typical numerical program Matlab experimental procedures and for testing material Platform: |
Size: 7247872 |
Author:tt |
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Description: 对具高噪声和低对比度三维图像的识别和分割算法进行了研究。基于活动轮廓模型,用Gabor变换提取图像的纹理特征,根据统计学信息假设,通过偏微分方程水平集和窄带方法求解,获得较基本活动轮廓的算法分割更光滑精确的物体轮廓-To a high noise and low contrast 3 d image recognition and segmentation algorithm was studied. Based on the active contour model, with Gabor transform to extract image texture feature, according to the statistics information hypothesis, through the partial differential equation of the level set and narrow band method, get a basic active contour algorithm segmentation more smooth accurate object contour Platform: |
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Author:张钰倩 |
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Description: 当红外图像中包含较强噪声时, C-V 模型水平集分割方法会产生大量冗余轮廓 同时, C-V 水平集采用偏
微分方程( PDE) 实现, 存在计算量大、分割速度慢的缺点。为此, 本文提出了改进的快速算法, 该算法保留了C-V
模型的全局优化特性, 并通过窗口滤波整合图像邻域空间信息来构建曲线进化的外部速度, 从而提高C-V 模型
的抗噪性并减少分割中产生的冗余轮廓 采用基于双链表的快速水平集算法来实现曲线的演化, 去除了传统算
法中的重新初始化和PDE 求解的过程, 减少了迭代步数, 提高了分割的速度-Infrared image contains strong noise the CV model level set segmentation method will produce a large number of redundant outline CV level set partial differential equation (PDE), there are computationally intensive, split the shortcomings of slow. To this end, the paper proposes an improved fast algorithm, the algorithm retains the global optimization CV model and the integration of spatial information of image neighborhood filtered through the window to build the external speed curve evolution, thereby enhancing the noise immunity of the CV model and reduce redundant contour segmentation evolution of the curve to achieve fast level set algorithm based on the double-linked list, in addition to re-initialize the traditional algorithms and PDE solving process, reduce the number of iterations, to improve the segmentation speed Platform: |
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Author:jim |
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Description: 图像修复的四阶偏微分方程模型，对图像去噪也有一定作用。-Fourth-order partial differential equation model of image restoration, image denoising also have a role. Platform: |
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Author:严晨 |
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Description: function [ue,un]=LW_utux0(v,dt,t)
一个简单的双曲型偏微分方程：
ut + ux = 0
初始条件为：
u(x,0) = 1, x≤0
= 0, x＞0.
边界条件为：
u(-1,t)=1,u(1,t)=0.
本题要求：
使用Lax-Windroff method，选择 v=0.5, 计算并画出当dt=0.01和0.0025时，
方程在t=0.5，x在(-1,1)时的数值解和精确解
输入：
v--即a*dt/dx
dt--数值格式的时间步
t--要求解的时间
输出：
ue--在时间t时的1×N精确解矩阵
un--在时间t时的1×N数值解矩阵
输出图像：
精确解和数值解的图像-function [ue, un] = LW_utux0 (v, dt, t) A simple hyperbolic partial differential equation: ut+ ux = 0 initial conditions: u (x, 0) = 1, x ≤ 0 = 0, x> 0 boundary conditions: u (-1, t) = 1, u (1, t) = 0 of the questions requires: using the Lax-Windroff method, select v =.. 0.5, calculate and draw when dt = 0.01 and 0.0025, equation t = 0.5, x numerical solution at (-1,1) and the exact solution when input: v- that is a* dt/dx dt- time step numerical format t- of output required time solution: ue- 1N exact solution matrix at time t un- 1N value at time t when the solution matrix output image: and numerical solutions precise image Platform: |
Size: 1024 |
Author:kingofhevil |
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Description: function [ue,un]=LW_utux0_2(v,dt,t)
一个简单的双曲型偏微分方程：
ut + ux = 0
初始条件为：
u(x,0) = exp[-10(4x-1)^2]
边界条件为：
u(-1,t)=0,u(1,t)=0.
本题要求：
使用Lax-Windroff格式，选择 v=0.5, 计算并画出当dt=0.01和0.0025时，
方程在t=0.5，x在(-1,1)时的数值解和精确解
输入：
v--即a*dt/dx
dt--数值格式的时间步
t--要求解的时间
输出：
ue--在时间t时的1×N精确解矩阵
un--在时间t时的1×N数值解矩阵
输出图像：
精确解和数值解的图像-function [ue, un] = LW_utux0_2 (v, dt, t) A simple hyperbolic partial differential equation: ut+ ux = 0 initial conditions: u (x, 0) = exp [- 10 (4x-1) ^ 2] of the boundary conditions: u (-1, t) = 0, u (1, t) = 0 of the required title: using the Lax-Windroff format, select v = 0.5, calculate and draw when dt = 0.01 and 0.0025, equation t = 0.5, x numerical solution at (-1,1) and the exact solution when input: v- that is a* dt/dx dt-- the time-step numerical format t- the time to be solved Output: ue- 1N exact solution at time t matrix un- 1N numerical solution matrix of the output image at time t : image and numerical solutions of the exact solution Platform: |
Size: 1024 |
Author:kingofhevil |
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Description: function [ue,un]=UPW_utux0(v,dt,t)
一个简单的双曲型偏微分方程：
ut + ux = 0
初始条件为：
u(x,0) = 1, x≤0
0, x＞0.
边界条件为：
u(-1,t)=1,u(1,t)=0.
本题要求：
使用迎风格式，选择 v=0.5, 计算并画出当dt=0.01和0.0025时，
方程在t=0.5，x在(-1,1)时的数值解和精确解
输入：
v--即a*dt/dx
dt--数值格式的时间步
t--要求解的时间
输出：
ue--在时间t时的1×N精确解矩阵
un--在时间t时的1×N数值解矩阵
输出图像：
精确解和数值解的图像-function [ue, un] = UPW_utux0 (v, dt, t) A simple hyperbolic partial differential equation: ut+ ux = 0 initial conditions: u (x, 0) = 1, x ≤ 0 0, x> 0 boundary conditions: u (-1, t) = 1, u (1, t) = 0 of the questions asked: using the upwind scheme, choose v = 0.5, calculated. and draw when dt = 0.01 and 0.0025, equation t = 0.5, x numerical solution at (-1,1) and the exact solution when the input: v- that is, a* dt/dx dt- time step numerical format t- the time to be solved Output: ue- 1N exact solution at time t matrix un- numerical solution 1N matrix of the output image at time t is: Image accuracy and numerical solutions of Platform: |
Size: 1024 |
Author:kingofhevil |
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Description: function [ue,un]=UPW_utux0_2(v,dt,t)
一个简单的双曲型偏微分方程：
ut + ux = 0
初始条件为：
u(x,0) = exp[-10(4x-1)^2]
边界条件为：
u(-1,t)=0,u(1,t)=0.
本题要求：
使用迎风格式，选择 v=0.5, 计算并画出当dt=0.01和0.0025时，
方程在t=0.5，x在(-1,1)时的数值解和精确解
输入：
v--即a*dt/dx
dt--数值格式的时间步
t--要求解的时间
输出：
ue--在时间t时的1×N精确解矩阵
un--在时间t时的1×N数值解矩阵
输出图像：
精确解和数值解的图像
-function [ue, un] = UPW_utux0_2 (v, dt, t) A simple hyperbolic partial differential equation: ut+ ux = 0 initial conditions: u (x, 0) = exp [- 10 (4x-1) ^ 2] boundary conditions: u (-1, t) = 0, u (1, t) = 0 of the questions asked: using the upwind scheme, choose v = 0.5, calculated and Draw when dt = 0.01 and 0.0025, equation t = 0.5, x numerical solution at (-1,1) and the exact solution when input: v- that is a* dt/dx dt- Value Time Format step t- the time to be solved Output: ue- 1N exact solution of the matrix at time t un- 1N value at time t solution matrix output image: image exact solution and the numerical solution Platform: |
Size: 1024 |
Author:kingofhevil |
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Description: 一个基于方向扩散偏微分方程的图像滤波码源，包括改进的加入边缘停止响应函数的方法-An image filtering based on direction diffusion partial differential equation of source code, including improved edge stop response function method Platform: |
Size: 1024 |
Author:李林伟 |
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Description: Image denoising matlab language development of the fixed point iteration method, an algorithm based on partial differential equation-Image denoising matlab language development of the fixed point iteration method, an algorithm based on partial differential equation,, Platform: |
Size: 2048 |
Author:hgo&8842 |
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Description: 王大凯 图像处理的偏微分方程方法书上对应的一部分程序(a part of the program in partial differential equation image processing) Platform: |
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Author:冰梦依痕
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Search - partial differential equation image