l1_ls 求解l1范式的值，用于压缩感知中的稀疏表示。进行分类 Special Effects 图形图像处理 238万源代码下载-
&文件名称: l1_ls
& & & & &&]
&&所属分类:
&&开发工具: matlab
&&文件大小: 3 KB
&&上传时间:
&&下载次数: 50
&&提 供 者:
&详细说明：求解l1范式的值，用于压缩感知中的稀疏表示。进行分类-Solving the value of l1 paradigm for compressed sensing of sparse representation. Classification
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&[]:很好，推荐下载&[]:很好，推荐下载&[]:很好，推荐下载&[]:纯粹是垃圾
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&[] - 代码实现稀疏表示中的l1范式中的7个优化问题。对大家实现稀疏表示算法有极大的参考价值
&[] - ma yi sparse representation classification .EXTENDED YALE B database.recognition rate 95 。
&[] - l1_ls 是一个目前最好的求解稀疏矩阵方程解的算法之一，这是作者发布的最新 MATLAB 源代码。
&[] - 压缩感知共轭梯度的基追踪算法。里面详细写了该算法的源程序。希望可以供大家学习。
&[] - 运行平台MATLAB，基于BP神经网络的语音分类，含权值与阈值的计算
&[] - 这是一篇新的介绍用压缩感知进行融合的算法，思路比较新颖
&[] - 压缩感知MATLAB经典工具箱 求解L1范式
&[] - Sparse Representation for accurate classification of corrupted and occluded facial expressions使用稀疏表示方法对有遮挡和腐蚀的人脸表情图像进行分类
&[] - 该源码实现了使用基于稀疏表示的人脸识别算法。使用GPSR作为l1模最小化方法。
&[] - 该工具箱为KSVD算法的实现，其用来自适应地对信号就行稀疏表示，达到良好的稀疏性Level Set Method Toolbox
A Toolbox of Level Set Methods
version 1.1.1
Version 1.1.1
Primarily a bug fix version.
A few new functions were added to the kernel: deleteDimension,
downsampleGrid, dividedDifferenceTable and getCellIndexes.
details on these functions, see their help entries.
has not been updated for version 1.1.1.
Download the toolbox
Documentation: Download
Source code: We recommend retrieving a version from
is tagged "ToolboxLS-1.1.1".
If you are very uncomfortable with version control systems, you can
download .
By clicking on this
link, you agree to the , which
are also available in the file LICENSE in the top directory of this
Once you have retrieved a copy, follow the instructions in the
README file.
Minimum Time to Reach the Origin for a Double Integrator.
For those who prefer pictures:
providing a brief
overview of the features of the Toolbox (version 1.1), some internal
design patterns used for flexibility and efficiency, and two new
extensions (additional SSP RK integrators, and a new motion by mean
curvature scheme).
This talk was first given at the International Conference on Industrial
and Applied Mathematics 2007.
Details of the extensions and
their code can be found below (look for the Journal of Scientific
Computing paper from December 2007).
providing a brief overview
of the features of the Toolbox (version 1.0).
This talk was first
given at the Canadian
Applied and Industrial Mathematics Annual Meeting 2005.
Important Notes
The Toolbox requires
No additional toolboxes are needed.
Version 1.1.1 of ToolboxLS definitely works with Matlab Versions
7.14 (R2012a) and 7.11 (R2012b).
Version 1.1 of ToolboxLS definitely works with Matlab Versions
6.5, 7.2 (R2006a) and 7.5 (R2007b).
Other versions of Matlab have not been directly tested.
The Toolbox is not a tutorial on level set methods.
purpose I recommend [1] and/or [2].
Because the Toolbox focuses on
regular grids and time-dependent PDEs, it follows [1] more closely.
If you find the Toolbox useful, please send me an email (mitchell
(at) cs.ubc.ca).
The more people who use the toolbox, the more
justification I have for continuing its development.
Growing Set:
Final Set:
More Details
Level set methods are a class of numerical algorithms for
simulation of dynamic implicit surfaces and approximation of solutions
to the Hamilton-Jacobi (HJ) partial differential equation (PDE).
These algorithms have application in such fields as:
Computational Geometry and Mesh Generation.
Differential Games.
Dynamic Programming.
Financial Mathematics.
Fluid and Combustion Simulation.
Image Processing and Computer Vision.
Robotics and Control.
Verification and Reachable Sets.
Compared to their competitors, level set methods can be relatively
easy to implement.
However, picking through the literature to find
all the gory details of high accuracy methods, and then debugging the
code in three dimensions (or more) is a slow process at best.
This Toolbox is designed to minimize the sum of coding, execution
and analysis time for those who want to explore level set methods.
Computationally, Matlab is not the fastest environment in which to
solve PDEs, but as a researcher I have found that the enviroment has
several important advantages over faster compiled implementations:
Built in visualization, including three dimensional isosurfaces.
Fully functional debugger, including the ability to visualize two
and three dimensional surfaces while debugging.
No compilation is required, so it is easy to write scripts,
construct initial conditions and examine results interactively.
All the source code for the Toolbox is provided (as m-files).
Kernel code can be written in a dimensionally independent manner.
Execution time is quite reasonable (even for three dimensional
problems), through the use of Matlab's "vectorization" and restriction
of the computational domain to regular Euclidean grids.
The Toolbox is not a tutorial on level set methods.
unfamiliar with these algorithms should consult one or both of the
textbooks [1],[2] (or the academic literature cited therein).
of the focus of the current version of the toolbox, it follows [1]
more closely.
In addition to examples which demonstrate the basic features of the
toolbox, recreations of examples from [1] and [2] are included, as
well as solutions of general time-dependent HJ PDEs and calculations
of reachable sets.
References
[1] Stanley Osher and Ronald Fedkiw. Level
Set Methods and Dynamic Implicit Surfaces.
Springer-Verlag
[2] James A. Sethian.
Set Methods and Fast Marching Methods.
Cambridge University
Press (1999).
Growing Set:
Growing Set:
Email Me If You
Find the Toolbox useful for something.
When it comes time to
justify my research agenda to granting agencies and the university,
the popularity of my software package(s) will definitely help.
can tell me how you use the Toolbox and how to improve it, all the
Would like to be informed of future releases.
Find a bug in the toolbox.
I will need a (small sized) example of
the code which recreates the bug.
Note that numerical instability
(the level set function blows up) is usually caused by incorrect
driver code (initialization, boundary conditions, dynamics or CFL
choice), not by kernel code.
Implement a useful feature.
External contributions to the toolbox
are welcome, although documentation will be needed.
Would like a feature implemented.
I cannot implement all
requests, but I will try to implement popular ones.
My email address is: mitchell (at) cs.ubc.ca
applicable to the Toolbox of Level Set Methods also applies
to this additional code that you download.
From Analysis and Design of Hybrid Systems
Requires version 1.1 or
From Hybrid Systems Computation & Control
Requires version 1.1 or higher.
From Hybrid Systems Computation & Control
or . Requires version 1.1 or higher.
From the American Control Conference 2008:
or reachable sets on the constraint
manifold (zipfile). Requires version 1.1 or higher.
From the Journal of Scientific Computing June
or . Requires version 1.1 or higher.
From Hybrid Systems Computation and Control
2005: . Requires version 1.1 or higher.
From IFAC Symposium on Nonlinear Control Systems
version 1.0 or higher.
Related Publications and Citing the Toolbox
Here are some papers related to the Toolbox which may contain
material that does not appear in the Toolbox documentation.
Also, citations matter to my academic career, so if you have used
the Toolbox in research that will be published, please choose a
citation appropriate to the field of publication from the list below.
While citations and links to the web site are greatly appreciated,
please do not use a URL as the only citation in published work.
For scientific computing, numerical analysis and general level set
(almost the version accepted for publication)
Ian M. Mitchell.
Journal of Scientific Computing, volume 35, numbers 2-3, pages 300-329 (June 2008).
The only difference between the version linked above and the
version of the paper accepted for publication is that the version
linked above omits an appendix of tables containing the alpha-beta
parameters for the temporal integrator schemes from section 3.1.
Readers seeking those parameter values may find them in Spiteri &
Ruuth (citation [38]), the function odeCFLab in the code download
below, or in the Springer published version of this article.
The published
version is available at SpringerLink.
Code for the new features described in section 3: tarball or zipfile. Requires version 1.1
or higher.
related talk, providing a brief overview of the features of the
Toolbox version 1.1 (paper sections 2.1 - 2.3 & 2.5), some internal
design patterns used for flexibility and efficiency (paper section
2.4), the new SSP RK integrators and a new motion by mean curvature
scheme (paper section 3).
This talk was first given at the International Conference on Industrial
and Applied Mathematics 2007.
For control and/or verification research:
(version accepted for publication)
Ian M. Mitchell and Jeremy A. Templeton.
Hybrid Systems Computation and Control (March 2005).
Appeared in Springer-Verlag's Lecture Notes in Computer Science
(LNCS) 3414, pp.480-494.
is available at .
(3.5 MB) from the talk
given at the conference.
Figure 1(b) on p. 486 was supposed to contain an image with a
square target set.
Contrary to the text, the time to reach function
for the circular target set that actually appeared is continuous (but
not Lipschitz continuous).
The time to reach function for the square
target set (shown on p. 11 of the slides) is discontinuous and corresponds
to the text.
Both versions can be produced with the example codes below.
Examples from section 3 (Cost to Go) are included as part of version 1.1.
Examples from sections 4 (Stochastic Continuous Systems) and 5
(Stochastic Hybrid Systems) are available as a separate
These codes also require version 1.1.
If none of the papers listed above seem appropriate, cite the
documentation for version 1.1:
Ian M. Mitchell.
UBC Department of Computer Science Technical Report TR-2007-11 (June 2007).
Previous Versions
Version 1.1 (June 2007)
By clicking on this link, you agree to the , which are also available in the file LICENSE in the top directory of this archive.
By clicking on this link, you agree to the , which are also available in the file LICENSE in the top directory of this archive.
Version 1.0 (July 2004)
By clicking on this link, you agree to the , which are also available in the file LICENSE in the top directory of this archive.
By clicking on this link, you agree to the , which are also available in the file LICENSE in the top directory of this archive.
The php script in the links is just a free click
counter (to help me justify future releases) and leads immediately
to the download files.
Created 25 June 2004.
Last updated 24 August 2012.
Created and maintained by .
Here is a .
Don't click on it.ToolboxLS-1.1 A for level set method d oped by Ian Mitchell. University of British matlab 238万源代码下载-
&文件名称: ToolboxLS-1.1
& & & & &&]
&&所属分类:
&&开发工具: matlab
&&文件大小: 1729 KB
&&上传时间:
&&下载次数: 4
&&提 供 者:
&详细说明：A toolbox for level set method developed by Ian Mitchell. University of British columbia.
文件列表(点击判断是否您需要的文件，如果是垃圾请在下面评价投诉):
&&ToolboxLS-1.1\Examples\addPathToKernel.m&&.............\........\Basic\convectionDemo.m&&.............\........\.....\laxFriedrichsDemo.m&&.............\........\.....\maskDemo.m&&.............\........\.....\reinitDemo.m&&.............\........\.....\reinitDemoFigures.m&&.............\........\OsherFedkiw\animateSpinStar.m&&.............\........\...........\curvatureSpiralDemo.m&&.............\........\...........\curvatureStarDemo.m&&.............\........\...........\normalStarDemo.m&&.............\........\...........\spinStarDemo.m&&.............\........\...........\spiralFromEllipse.m&&.............\........\...........\spiralFromPoints.m&&.............\........\.....Shu\burgersLF.m&&.............\........\........\nonconvexLF.m&&.............\........\Reachability\acoustic.m&&.............\........\............\air3D.m&&.............\........\............\airMode.m&&.............\........\............\animateAcoustic.m&&.............\........\............\animateAir3D.m&&.............\........\............\figureAir3D.m&&.............\........\.ussoSmereka\ellipseError.m&&.............\........\............\reinit1D.m&&.............\........\............\reinitCircle.m&&.............\........\............\reinitEllipse.m&&.............\........\SDE\exerciseKP529.m&&.............\........\...\exerciseO169b.m&&.............\........\...\linearAdditiveSDE.m&&.............\........\...\testLinearAdditiveSDE.m&&.............\........\.ethian\animateDumbbell.m&&.............\........\.......\dumbbell1.m&&.............\........\.......\tripleSine.m&&.............\........\Test\argumentSemanticsTest.m&&.............\........\....\firstDerivSpatialConverge.m&&.............\........\....\firstDerivSpatialTest1.m&&.............\........\....\ghostCell.m&&.............\........\....\initialConditionsTest1D.m&&.............\........\....\initialConditionsTest2D.m&&.............\........\....\initialConditionsTest3D.m&&.............\........\....\reinitTest.m&&.............\........\.imeToReach\analyticDoubleIntegratorTTR.m&&.............\........\...........\analyticHolonomicTTR.m&&.............\........\...........\analyticSumSquareTTR.m&&.............\........\...........\convectionTTR.m&&.............\........\...........\convergeDoubleIntegratorTTR.m&&.............\........\...........\convergeHolonomicTTR.m&&.............\........\...........\doubleIntegratorTTR.m&&.............\........\...........\holonomicTTR.m&&.............\........\Vector\compareTerms.m&&.............\........\......\smerekaSpirals.m&&.............\........\......\visualizeOpenCurve.m&&.............\Kernel\BoundaryCondition\addGhostAllDims.m&&.............\......\.................\addGhostDirichlet.m&&.............\......\.................\addGhostExtrapolate.m&&.............\......\.................\addGhostExtrapolate2.m&&.............\......\.................\addGhostNeumann.m&&.............\......\.................\addGhostPeriodic.m&&.............\......\.................\addNodesAllDims.m&&.............\......\ExplicitIntegration\Dissipation\artificialDissipationGLF.m&&.............\......\...................\...........\artificialDissipationLLF.m&&.............\......\...................\...........\artificialDissipationLLLF.m&&.............\......\...................\Integrators\odeCFL1.m&&.............\......\...................\...........\odeCFL1withStats.m&&.............\......\...................\...........\odeCFL2.m&&.............\......\...................\...........\odeCFL3.m&&.............\......\...................\...........\odeCFLcallPostTimestep.m&&.............\......\...................\...........\odeCFLget.m&&.............\......\...................\...........\odeCFLmultipleSteps.m&&.............\......\...................\...........\odeCFLset.m&&.............\......\...................\...........\odeCFLvector.m&&.............\......\...................\Term\termConvection.m&&.............\......\...................\....\termCurvature.m&&.............\......\...................\....\termDiscount.m&&.............\......\...................\....\termForcing.m&&.............\......\...................\....\termLaxFriedrichs.m&&.............\......\...................\....\termNormal.m&&.............\......\...................\....\termReinit.m&&.............\......\...................\....\termRestrictUpdate.m&&.............\......\...................\....\termSum.m&&.............\......\...................\....\termTraceHessian.m&&.............\......\Grids\gridnd2mesh.m&&.............\......\.....\processGrid.m&&.............\......\Helper\ErrorCheck\checkStructureFields.m&&.............\......\......\Math\cellMatrixAdd.m&&.............\......\......\....\cellMatrixMax.m&&.............\......\......\....\cellMatrixMultiply.m&&.............\......\......\....\cellMatrixTrace.m&&.............\......\......\PostTimestep\postTimestepMask.m&&.............\......\......\............\postTimestepReinit.m&&.............\......\......\............\postTimestepTTR.m&&.............\......\......\SignedDistance\isNearInterface.m&&.............\......\......\..............\signedDistanceIterative.m&&.............\......\......\..............\unsignedDistanceFromPoints.m&&.............\......\......\TerminalEvent\terminalEventConverge.m&&.............\......\......\Visualization\addSlopes.m&&.............\......\......\.............\spinAnimation.m&&.............\......\......\.............\visualizeLevelSet.m&&.............\......\InitialConditions\BasicShapes\shapeCylinder.m&&.............\......\.................\...........\shapeHyperplane.m&&.............\......\.................\...........\shapeHyperplaneByPoints.m
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&[] - coupled level set and VOF method
&[] - level set Toolbox Source codes and documents.ian_mitchell-toolboxls 这个工具箱是对水平集方法的matlab程序的搜集。这些 应用数值算法在任一维度来近似 Special Effects 图形图像处理 238万源代码下载-
&文件名称: ian_mitchell-toolboxls& & [
& & & & &&]
&&所属分类:
&&开发工具: matlab
&&文件大小: 274 KB
&&上传时间:
&&下载次数: 0
&&提 供 者:
&详细说明：这个工具箱是对水平集方法的matlab程序的搜集。这些程序应用数值算法在任一维度来近似基于时间变化的汉密尔顿雅可比偏微分方程的解。汉密尔顿雅可比偏微分方程常用动画演示动态隐式曲面，计算流体动力学，并且它是独立在最优控制，微分博弈机器人，金融数学，连续的可达性等兴趣领域。-The Toolbox of Level Set Methods (ToolboxLS) is a collection of Matlab
routines that implement numerical algorithms to approximate the
solution of the time-dependent Hamilton-Jacobi (HJ) partial
differential equation (PDE) in any number of dimensions.
The HJ PDE
is often used for simulating dynamic implicit surfaces in animation
and computational fluid dynamics (CFD), and it is of independent
interest in areas of optimal control, differential games, robotics,
financial mathematics, continuous reachability, etc.
文件列表(点击判断是否您需要的文件，如果是垃圾请在下面评价投诉):
&&ian_mitchell-toolboxls\.hg_archival.txt&&......................\.HGIGNORE&&......................\.hgtags&&......................\Examples\Basic\convectionDemo.m&&......................\........\.....\laxFriedrichsDemo.m&&......................\........\.....\maskDemo.m&&......................\........\.....\reinitDemo.m&&......................\........\.....\reinitDemoFigures.m&&......................\........\OsherFedkiw\animateSpinStar.m&&......................\........\...........\curvatureSpiralDemo.m&&......................\........\...........\curvatureStarDemo.m&&......................\........\...........\normalStarDemo.m&&......................\........\...........\spinStarDemo.m&&......................\........\...........\spiralFromEllipse.m&&......................\........\...........\spiralFromPoints.m&&......................\........\.....Shu\burgersLF.m&&......................\........\........\nonconvexLF.m&&......................\........\RUSSOSMEREKA\ellipseError.m&&......................\........\............\reinit1D.m&&......................\........\............\reinitCircle.m&&......................\........\............\reinitEllipse.m&&......................\........\.eachability\acoustic.m&&......................\........\............\air3D.m&&......................\........\............\airMode.m&&......................\........\............\animateAcoustic.m&&......................\........\............\animateAir3D.m&&......................\........\............\figureAir3D.m&&......................\........\SDE\exerciseKP529.m&&......................\........\...\exerciseO169b.m&&......................\........\...\linearAdditiveSDE.m&&......................\........\...\testLinearAdditiveSDE.m&&......................\........\.ethian\animateDumbbell.m&&......................\........\.......\dumbbell1.m&&......................\........\.......\tripleSine.m&&......................\........\Test\argumentSemanticsTest.m&&......................\........\....\firstDerivSpatialConverge.m&&......................\........\....\firstDerivSpatialTest1.m&&......................\........\....\ghostCell.m&&......................\........\....\initialConditionsTest1D.m&&......................\........\....\initialConditionsTest2D.m&&......................\........\....\initialConditionsTest3D.m&&......................\........\....\reinitTest.m&&......................\........\.imeToReach\analyticDoubleIntegratorTTR.m&&......................\........\...........\analyticHolonomicTTR.m&&......................\........\...........\analyticSumSquareTTR.m&&......................\........\...........\convectionTTR.m&&......................\........\...........\convergeDoubleIntegratorTTR.m&&......................\........\...........\convergeHolonomicTTR.m&&......................\........\...........\doubleIntegratorTTR.m&&......................\........\...........\holonomicTTR.m&&......................\........\Vector\compareTerms.m&&......................\........\......\smerekaSpirals.m&&......................\........\......\visualizeOpenCurve.m&&......................\........\addPathToKernel.m&&......................\Kernel\BoundaryCondition\addGhostAllDims.m&&......................\......\.................\addGhostDirichlet.m&&......................\......\.................\addGhostExtrapolate.m&&......................\......\.................\addGhostExtrapolate2.m&&......................\......\.................\addGhostNeumann.m&&......................\......\.................\addGhostPeriodic.m&&......................\......\.................\addNodesAllDims.m&&......................\......\ExplicitIntegration\Dissipation\artificialDissipationGLF.m&&......................\......\...................\...........\artificialDissipationLLF.m&&......................\......\...................\...........\artificialDissipationLLLF.m&&......................\......\...................\Integrators\odeCFL1.m&&......................\......\...................\...........\odeCFL2.m&&......................\......\...................\...........\odeCFL3.m&&......................\......\...................\...........\odeCFLcallPostTimestep.m&&......................\......\...................\...........\odeCFLget.m&&......................\......\...................\...........\odeCFLmultipleSteps.m&&......................\......\...................\...........\odeCFLset.m&&......................\......\...................\Term\termConvection.m&&......................\......\...................\....\termCurvature.m&&......................\......\...................\....\termDiscount.m&&......................\......\...................\....\termForcing.m&&......................\......\...................\....\termLaxFriedrichs.m&&......................\......\...................\....\termNormal.m&&......................\......\...................\....\termReinit.m&&......................\......\...................\....\termRestrictUpdate.m&&......................\......\...................\....\termSum.m&&......................\......\...................\....\termTraceHessian.m&&......................\......\Grids\deleteDimensionGrid.m&&......................\......\.....\downsampleGrid.m&&......................\......\.....\gridnd2mesh.m&&......................\......\.....\processGrid.m&&......................\......\Helper\DividedDifferences\dividedDifferenceTable.m&&......................\......\......\ErrorCheck\checkStructureFields.m&&......................\......\......\Math\cellMatrixAdd.m&&......................\......\......\....\cellMatrixMax.m&&......................\......\......\....\cellMatrixMultiply.m&&......................\......\......\....\cellMatrixTrace.m&&......................\......\......\....\postTimestepMask.m&&......................\......\......\.iscellaneous\getCellIndexes.m&&......................\......\......\.............\setCrossProduct.m&&......................\......\......\PostTimestep\postTimestepMask.m&&......................\......\......\............\postTimestepReinit.m&&......................\......\......\............\postTimestepTTR.m&&......................\......\......\SignedDistance\isNearInterface.m&&......................\......\......\..............\signedDistanceIterative.m&&......................\......\......\..............\unsignedDistanceFromPoints.m
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