Lorensen: /* Module Name */

2010-04-28T19:51:40Z

Module Name

Lorensen: moved Modules:CurvatureAnisotropicFilter-Documentation-3.6 to Modules:CurvatureAnisotropicDiffusion-Documentation-3.6

2010-04-28T19:13:05Z

moved Modules:CurvatureAnisotropicFilter-Documentation-3.6 to Modules:CurvatureAnisotropicDiffusion-Documentation-3.6

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2010-04-28T19:09:04Z

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[[Documentation-3.6|Return to Slicer 3.6 Documentation]]

__NOTOC__
===Module Name===
Curvature Anisotropic Diffusion Filter

{|
|[[Image:screenshotBlank.png|thumb|280px|Caption 1]]
|[[Image:screenshotBlank.png|thumb|280px|Caption 2]]
|[[Image:screenshotBlank.png|thumb|280px|Caption 3]]
|}

== General Information ==
===Module Type & Category===

Type: CLI

Category: Filtering/Denoising

===Authors, Collaborators & Contact===
* Author: Bill Lorensen
* Contact: bill.lorensen at gmail.com

===Module Description===
Performs anisotropic diffusion on an image using a modified curvature
diffusion equation (MCDE).

MCDE does not exhibit the edge enhancing properties of classic
anisotropic diffusion, which can under certain conditions undergo a
'negative' diffusion, which enhances the contrast of edges. Equations
of the form of MCDE always undergo positive diffusion, with the
conductance term only varying the strength of that diffusion.

Qualitatively, MCDE compares well with other non-linear diffusion
techniques. It is less sensitive to contrast than classic
Perona-Malik style diffusion, and preserves finer detailed structures
in images. There is a potential speed trade-off for using this
function in place of Gradient Anisotropic Diffusion. Each iteration
of the solution takes roughly twice as long. Fewer iterations,
however, may be required to reach an acceptable solution.

== Usage ==
<pre>
CurvatureAnisotropicDiffusion
[--returnparameterfile
<std::string>]
[--processinformationaddress
<std::string>] [--xml] [--echo]
[--timeStep <double>] [--iterations
<int>] [--conductance <double>]
[--] [--version] [-h] <std::string>
<std::string>

Where:

--returnparameterfile <std::string>
Filename in which to write simple return parameters (int, float,
int-vector, etc.) as opposed to bulk return parameters (image,
geometry, transform, measurement, table).

--processinformationaddress <std::string>
Address of a structure to store process information (progress, abort,
etc.). (default: 0)

--xml
Produce xml description of command line arguments (default: 0)

--echo
Echo the command line arguments (default: 0)

--timeStep <double>
Time Step (default: 0.0625)

--iterations <int>
The more iterations, the more smoothing. Each iteration takes the same
amount of time. If it takes 10 seconds for one iteration, then it will
take 100 seconds for 10 iterations. Note that the conductance controls
how much each iteration smooths across edges. (default: 1)

--conductance <double>
Conductance (default: 1)

--, --ignore_rest
Ignores the rest of the labeled arguments following this flag.

--version
Displays version information and exits.

-h, --help
Displays usage information and exits.

<std::string>
(required) Input volume to be filtered

<std::string>
(required) Output filtered
</pre>

== Development ==

===Source code & documentation===

Source Code: [http://www.na-mic.org/ViewVC/index.cgi/trunk/Applications/CLI/CurvatureAnisotropicDiffusion.cxx?view=co CurvatureAnisotropicDiffusion.cxx]

XML Description: [http://www.na-mic.org/ViewVC/index.cgi/trunk/Applications/CLI/CurvatureAnisotropicDiffusion.xml?view=co CurvatureAnisotropicDiffusion.xml]

== More Information ==

===Acknowledgment===
This work is part of the National Alliance for Medical Image
Computing (NAMIC), funded by the National Institutes of Health
through the NIH Roadmap for Medical Research, Grant U54 EB005149.
Information on the National Centers for Biomedical Computing
can be obtained from [http://www.ncbcs.org/ National Centers for Biomedical Computing].

===References===

@@ Line 6: / Line 6: @@
 {|
-|[[Image:screenshotBlank.png|thumb|280px|Caption 1]]
+|[[Image:MRIUnfiltered.png|thumb|280px|Unfiltered MRI image]]
-|[[Image:screenshotBlank.png|thumb|280px|Caption 2]]
+|[[Image:MRICurvatureAnisotropicDiffusion.png|thumb|280px|Curvature filtered with conductance=1 and iterations=10]]
 |}

← Older revision	Revision as of 19:13, 28 April 2010
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Modules:CurvatureAnisotropicDiffusion-Documentation-3.6 - Revision history

Lorensen: /* Module Name */

Lorensen: moved Modules:CurvatureAnisotropicFilter-Documentation-3.6 to Modules:CurvatureAnisotropicDiffusion-Documentation-3.6

Lorensen: Created page with 'Return to Slicer 3.6 Documentation __NOTOC__ ===Module Name=== Curvature Anisotropic Diffusion Filter {| |[[Image:screenshotBlank.png|thumb|280px|Caption …'

Lorensen: Created page with 'Return to Slicer 3.6 Documentation NOTOC ===Module Name=== Curvature Anisotropic Diffusion Filter {| |[[Image:screenshotBlank.png|thumb|280px|Caption …'